File name:

Rokku.exe

Full analysis: https://app.any.run/tasks/bbb22cea-27c2-4c85-8e6d-351b705731ee
Verdict: Malicious activity
Threats:

Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying.

Malware Trends Tracker     >>>
Analysis date: December 31, 2023, 16:28:43
OS: Windows 11 Professional (build: 22000, 64 bit)
Tags:
ransomware
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (console) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed
MD5:

97512F4617019C907CD0F88193039E7C

SHA1:

24CFA261EE30F697E7D1E2215EEE1C21EEBF4579

SHA256:

438888EF36BAD1079AF79DAF152DB443B4472C5715A7B3DA0BA24CC757C53499

SSDEEP:

24576:P8XElWAqM0791OKD7S1olKPn5RjARsSZL/mOHDm+0sfoxztDAH:PmElWhM0791OKD7S1olKPn5RjARs8Tm4

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Starts NET.EXE for service management

      • Rokku.exe (PID: 5192)
      • net.exe (PID: 3388)
      • net.exe (PID: 2732)
      • net.exe (PID: 3152)

    • Deletes shadow copies

      • Rokku.exe (PID: 5192)

    • Renames files like ransomware

      • Rokku.exe (PID: 5192)

    • Create files in the Startup directory

      • Rokku.exe (PID: 5192)

  • SUSPICIOUS

    • Reads the date of Windows installation

      • Rokku.exe (PID: 5192)

    • Uses REG/REGEDIT.EXE to modify registry

      • Rokku.exe (PID: 5192)

    • Creates files like ransomware instruction

      • Rokku.exe (PID: 5192)

    • Reads the Internet Settings

      • Rokku.exe (PID: 5192)

  • INFO

    • Checks supported languages

      • Rokku.exe (PID: 5192)

    • Reads the computer name

      • Rokku.exe (PID: 5192)

    • Drops the executable file immediately after the start

      • Rokku.exe (PID: 5192)

    • Reads the machine GUID from the registry

      • Rokku.exe (PID: 5192)

    • Dropped object may contain TOR URL's

      • Rokku.exe (PID: 5192)

    • Application launched itself

      • chrome.exe (PID: 4184)

    • Manual execution by a user

      • chrome.exe (PID: 4184)
      • notepad++.exe (PID: 5916)

    • Creates files or folders in the user directory

      • Rokku.exe (PID: 5192)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | UPX compressed Win32 Executable (39.3)
.exe | Win32 EXE Yoda's Crypter (38.6)
.dll | Win32 Dynamic Link Library (generic) (9.5)
.exe | Win32 Executable (generic) (6.5)
.exe | Generic Win/DOS Executable (2.9)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2012:08:11 16:04:50+02:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit, No debug
PEType: PE32
LinkerVersion: 2.22
CodeSize: 684032
InitializedDataSize: 4096
UninitializedDataSize: 933888
EntryPoint: 0x18b0d0
OSVersion: 4
ImageVersion: 1
SubsystemVersion: 4
Subsystem: Windows command line
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
135
Monitored processes
35
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start rokku.exe conhost.exe no specs wmic.exe no specs conhost.exe no specs reg.exe no specs conhost.exe no specs reg.exe no specs conhost.exe no specs net.exe no specs net.exe no specs conhost.exe no specs conhost.exe no specs net.exe no specs conhost.exe no specs net1.exe no specs net1.exe no specs net1.exe no specs rundll32.exe no specs chrome.exe chrome.exe no specs chrome.exe no specs chrome.exe chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs dllhost.exe no specs notepad++.exe

Process information

PID
CMD
Path
Indicators
Parent process
996"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAAAAAAGAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1752 --field-trial-handle=1756,i,5006337530944473699,5086954683685716981,131072 --disable-features=OptimizationGuideModelDownloading,OptimizationHints,OptimizationHintsFetching,OptimizationTargetPrediction /prefetch:2C:\Program Files (x86)\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
112.0.5615.50
Modules
Images
c:\program files (x86)\google\chrome\application\chrome.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files (x86)\google\chrome\application\112.0.5615.50\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
1160\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—WMIC.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Console Window Host
Exit code:
0
Version:
10.0.22000.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
2096\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—net.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Console Window Host
Exit code:
0
Version:
10.0.22000.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
2292"C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractiveC:\Windows\SysWOW64\wbem\WMIC.exe—Rokku.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
WMI Commandline Utility
Exit code:
2147749908
Version:
10.0.22000.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\wbem\wmic.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64base.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64con.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
2732"C:\Windows\System32\net.exe" stop vssC:\Windows\SysWOW64\net.exe—Rokku.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Net Command
Exit code:
2
Version:
10.0.22000.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\net.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64base.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64con.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
3152"C:\Windows\System32\net.exe" stop swprvC:\Windows\SysWOW64\net.exe—Rokku.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Net Command
Exit code:
2
Version:
10.0.22000.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\net.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64base.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64con.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
3152"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --disable-quic --mojo-platform-channel-handle=2348 --field-trial-handle=1756,i,5006337530944473699,5086954683685716981,131072 --disable-features=OptimizationGuideModelDownloading,OptimizationHints,OptimizationHintsFetching,OptimizationTargetPrediction /prefetch:8C:\Program Files (x86)\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
112.0.5615.50
Modules
Images
c:\program files (x86)\google\chrome\application\chrome.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files (x86)\google\chrome\application\112.0.5615.50\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
3236C:\Windows\system32\net1 stop srserviceC:\Windows\SysWOW64\net1.exe—net.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Net Command
Exit code:
2
Version:
10.0.22000.434 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\net1.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64base.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64con.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
3256"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --disable-quic --mojo-platform-channel-handle=1996 --field-trial-handle=1756,i,5006337530944473699,5086954683685716981,131072 --disable-features=OptimizationGuideModelDownloading,OptimizationHints,OptimizationHintsFetching,OptimizationTargetPrediction /prefetch:8C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
MEDIUM
Description:
Google Chrome
Exit code:
0
Version:
112.0.5615.50
Modules
Images
c:\program files (x86)\google\chrome\application\chrome.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files (x86)\google\chrome\application\112.0.5615.50\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
3388"C:\Windows\System32\net.exe" stop srserviceC:\Windows\SysWOW64\net.exe—Rokku.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Net Command
Exit code:
2
Version:
10.0.22000.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\net.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64base.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64con.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
Total events
8 463
Read events
8 437
Write events
25
Delete events
1

Modification events

(PID) Process:(5192) Rokku.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(5192) Rokku.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(5192) Rokku.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(5192) Rokku.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
(PID) Process:(4184) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:failed_count
Value:
0
(PID) Process:(4184) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:state
Value:
1
(PID) Process:(4184) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\ThirdParty
Operation:writeName:StatusCodes
Value:
01000000
(PID) Process:(4184) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:state
Value:
2
(PID) Process:(4184) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Update\ClientState\{8A69D345-D564-463c-AFF1-A69D9E530F96}
Operation:writeName:dr
Value:
1
(PID) Process:(4184) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\StabilityMetrics
Operation:writeName:user_experience_metrics.stability.exited_cleanly
Value:
1
Executable files
1
Suspicious files
200
Text files
141
Unknown types
1

Dropped files

PID
Process
Filename
Type
5192Rokku.exeC:\Users\admin\README_HOW_TO_UNLOCK.HTMLhtml
MD5:C784D96CA311302C6F2F8F0BEE8C725B
SHA256:A7836550412B0E0963D16D8442B894A1148326B86D119E4D30F1B11956380EF0
5192Rokku.exeC:\Users\admin\.ms-ad\README_HOW_TO_UNLOCK.TXTtext
MD5:04B892B779D04F3A906FDE1A904D98BB
SHA256:EB22C6ECFD4D7D0FCEA5063201CCF5E7313780E007EF47CCA01F1369EE0E6BE0
5192Rokku.exeC:\Users\Public\README_HOW_TO_UNLOCK.HTMLhtml
MD5:C784D96CA311302C6F2F8F0BEE8C725B
SHA256:A7836550412B0E0963D16D8442B894A1148326B86D119E4D30F1B11956380EF0
5192Rokku.exeC:\Users\admin\AppData\README_HOW_TO_UNLOCK.TXTtext
MD5:04B892B779D04F3A906FDE1A904D98BB
SHA256:EB22C6ECFD4D7D0FCEA5063201CCF5E7313780E007EF47CCA01F1369EE0E6BE0
5192Rokku.exeC:\Users\admin\README_HOW_TO_UNLOCK.TXTtext
MD5:04B892B779D04F3A906FDE1A904D98BB
SHA256:EB22C6ECFD4D7D0FCEA5063201CCF5E7313780E007EF47CCA01F1369EE0E6BE0
5192Rokku.exeC:\Users\Public\README_HOW_TO_UNLOCK.TXTtext
MD5:04B892B779D04F3A906FDE1A904D98BB
SHA256:EB22C6ECFD4D7D0FCEA5063201CCF5E7313780E007EF47CCA01F1369EE0E6BE0
5192Rokku.exeC:\Users\admin\Contacts\README_HOW_TO_UNLOCK.TXTtext
MD5:04B892B779D04F3A906FDE1A904D98BB
SHA256:EB22C6ECFD4D7D0FCEA5063201CCF5E7313780E007EF47CCA01F1369EE0E6BE0
5192Rokku.exeC:\Users\admin\Documents\README_HOW_TO_UNLOCK.TXTtext
MD5:04B892B779D04F3A906FDE1A904D98BB
SHA256:EB22C6ECFD4D7D0FCEA5063201CCF5E7313780E007EF47CCA01F1369EE0E6BE0
5192Rokku.exeC:\Users\admin\Documents\README_HOW_TO_UNLOCK.HTMLhtml
MD5:C784D96CA311302C6F2F8F0BEE8C725B
SHA256:A7836550412B0E0963D16D8442B894A1148326B86D119E4D30F1B11956380EF0
5192Rokku.exeC:\Users\admin\Downloads\README_HOW_TO_UNLOCK.TXTtext
MD5:04B892B779D04F3A906FDE1A904D98BB
SHA256:EB22C6ECFD4D7D0FCEA5063201CCF5E7313780E007EF47CCA01F1369EE0E6BE0
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
36
DNS requests
30
Threats
1

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3752
svchost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
binary
471 b
unknown
1112
smartscreen.exe
GET
200
93.184.221.240:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?b5dfe24bd03fa300
unknown
compressed
4.66 Kb
unknown
1112
smartscreen.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEApDqVCbATUviZV57HIIulA%3D
unknown
binary
471 b
unknown
3256
chrome.exe
GET
301
142.250.185.78:80
http://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit
unknown
—
—
unknown
1412
svchost.exe
GET
200
2.16.164.42:80
http://www.msftconnecttest.com/connecttest.txt
unknown
text
22 b
unknown
3256
chrome.exe
GET
200
34.104.35.123:80
http://edgedl.me.gvt1.com/edgedl/chromewebstore/L2Nocm9tZV9leHRlbnNpb24vYmxvYnMvNzI0QUFXNV9zT2RvdUwyMERESEZGVmJnQQ/1.0.0.6_nmmhkkegccagdldgiimedpiccmgmieda.crx
unknown
binary
242 Kb
unknown
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
1112
smartscreen.exe
51.104.176.40:443
checkappexec.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
unknown
1112
smartscreen.exe
93.184.221.240:80
ctldl.windowsupdate.com
EDGECAST
GB
whitelisted
4588
svchost.exe
239.255.255.250:1900
—
—
—
whitelisted
1112
smartscreen.exe
192.229.221.95:80
ocsp.digicert.com
EDGECAST
US
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
2864
svchost.exe
51.124.78.146:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
1412
svchost.exe
2.16.164.35:80
—
Akamai International B.V.
NL
unknown
5944
svchost.exe
23.211.8.90:443
—
AKAMAI-AS
DE
unknown
1732
OfficeC2RClient.exe
52.109.32.97:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
GB
unknown

DNS requests

Domain
IP
Reputation
checkappexec.microsoft.com
  • 51.104.176.40
whitelisted
ctldl.windowsupdate.com
  • 93.184.221.240
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
login.live.com
  • 40.126.32.140
  • 20.190.160.14
  • 40.126.32.72
  • 40.126.32.138
  • 40.126.32.76
  • 40.126.32.136
  • 20.190.160.22
  • 40.126.32.68
whitelisted
ecs.office.com
  • 52.113.194.132
whitelisted
mrodevicemgr.officeapps.live.com
  • 52.109.89.117
whitelisted
clientservices.googleapis.com
  • 142.250.185.227
whitelisted
accounts.google.com
  • 74.125.71.84
shared
clients2.google.com
  • 142.250.185.238
whitelisted
translate.google.com
  • 142.250.185.78
whitelisted

Threats

PID
Process
Class
Message
1412
svchost.exe
Misc activity
ET INFO Microsoft Connection Test
Process
Message
notepad++.exe
VerifyLibrary: certificate revocation checking is disabled
notepad++.exe
VerifyLibrary: C:\Program Files\Notepad++\SciLexer.dll
notepad++.exe
ED255D9151912E40DF048A56288E969A8D0DAFA3
notepad++.exe
VerifyLibrary: certificate revocation checking is disabled
notepad++.exe
VerifyLibrary: error while getting certificate informations
notepad++.exe
VerifyLibrary: C:\Program Files\Notepad++\updater\gup.exe
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Reports
Rokku.exe