File name:

kolzuw.exe

Full analysis: https://app.any.run/tasks/af12c526-28b8-4e1b-9037-e9644e843f27
Verdict: Malicious activity
Analysis date: March 08, 2024, 23:34:38
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
autoit
evasion
sinkhole
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5:

121EDB3CB4A3279144DD1264861476A7

SHA1:

CB3908BC75F8E7218986B32F9C8A5C0BDE6B8479

SHA256:

0533DF987B6362D916CDEA059189A5ED2A50005A3E58B2C90F23ADB96E95C78F

SSDEEP:

24576:bBu2wbomtK71NIyNMDMk3N2ydWg83QKVM/UcG6QIDLsVj7aIqYXb1JGQqnapj:bBu2wbomtK71NIyNMDMONbWg83QKVM/S

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

    • UAC/LUA settings modification

      • kolzuw.exe (PID: 3848)

    • Creates a writable file in the system directory

      • kolzuw.exe (PID: 3848)
      • csrcs.exe (PID: 3304)

    • Drops the executable file immediately after the start

      • kolzuw.exe (PID: 4052)
      • kolzuw.exe (PID: 3848)

    • Changes the autorun value in the registry

      • kolzuw.exe (PID: 3848)
      • csrcs.exe (PID: 3304)

    • Changes appearance of the Explorer extensions

      • kolzuw.exe (PID: 3848)
      • csrcs.exe (PID: 3304)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • kolzuw.exe (PID: 3848)

    • Reads security settings of Internet Explorer

      • kolzuw.exe (PID: 4052)
      • kolzuw.exe (PID: 3848)
      • csrcs.exe (PID: 3304)

    • Reads the Internet Settings

      • kolzuw.exe (PID: 4052)
      • kolzuw.exe (PID: 3848)
      • csrcs.exe (PID: 3304)

    • Application launched itself

      • kolzuw.exe (PID: 4052)

    • Starts itself from another location

      • kolzuw.exe (PID: 3848)

    • Reads settings of System Certificates

      • csrcs.exe (PID: 3304)

    • Checks Windows Trust Settings

      • csrcs.exe (PID: 3304)

    • Checks for external IP

      • csrcs.exe (PID: 3304)

    • Connects to unusual port

      • csrcs.exe (PID: 3304)

  • INFO

    • Reads mouse settings

      • kolzuw.exe (PID: 4052)
      • kolzuw.exe (PID: 3848)
      • csrcs.exe (PID: 3304)

    • Reads the computer name

      • kolzuw.exe (PID: 4052)
      • kolzuw.exe (PID: 3848)
      • csrcs.exe (PID: 3304)

    • Checks supported languages

      • kolzuw.exe (PID: 4052)
      • kolzuw.exe (PID: 3848)
      • csrcs.exe (PID: 3304)

    • Create files in a temporary directory

      • kolzuw.exe (PID: 3848)
      • csrcs.exe (PID: 3304)

    • Process checks whether UAC notifications are on

      • kolzuw.exe (PID: 3848)
      • csrcs.exe (PID: 3304)

    • Reads the machine GUID from the registry

      • csrcs.exe (PID: 3304)

    • Checks proxy server information

      • csrcs.exe (PID: 3304)

    • Creates files or folders in the user directory

      • csrcs.exe (PID: 3304)

    • Reads the software policy settings

      • csrcs.exe (PID: 3304)
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: 2010:04:16 07:47:33+00:00
ImageFileCharacteristics: No relocs, Executable, Large address aware, 32-bit
PEType: PE32
LinkerVersion: 9
CodeSize: 270336
InitializedDataSize: 139264
UninitializedDataSize: 589824
EntryPoint: 0xd2bb0
OSVersion: 5
ImageVersion: -
SubsystemVersion: 5
Subsystem: Windows GUI
FileVersionNumber: 99.8.1.0
ProductVersionNumber: 3.3.6.1
FileFlagsMask: 0x0000
FileFlags: (none)
FileOS: Win32
ObjectFileType: Unknown
FileSubtype: -
LanguageCode: English (Canadian)
CharacterSet: Unicode
FileVersion: 99.8.1.0
Comments: V!!H|?=~
FileDescription: >JC&2`EuD
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
42
Monitored processes
3
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start kolzuw.exe no specs kolzuw.exe csrcs.exe

Process information

PID
CMD
Path
Indicators
Parent process
3304"C:\Windows\System32\csrcs.exe" C:\Windows\System32\csrcs.exe
kolzuw.exe
User:
admin
Integrity Level:
HIGH
Description:
>JC&2`EuD
Exit code:
0
Version:
99.8.1.0
Modules
Images
c:\windows\system32\csrcs.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.24483_none_2b200f664577e14b\comctl32.dll
c:\windows\system32\gdi32.dll
3848"C:\Users\admin\AppData\Local\Temp\kolzuw.exe" C:\Users\admin\AppData\Local\Temp\kolzuw.exe
kolzuw.exe
User:
admin
Integrity Level:
HIGH
Description:
>JC&2`EuD
Exit code:
0
Version:
99.8.1.0
Modules
Images
c:\users\admin\appdata\local\temp\kolzuw.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.24483_none_2b200f664577e14b\comctl32.dll
c:\windows\system32\gdi32.dll
4052"C:\Users\admin\AppData\Local\Temp\kolzuw.exe" C:\Users\admin\AppData\Local\Temp\kolzuw.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
>JC&2`EuD
Exit code:
0
Version:
99.8.1.0
Modules
Images
c:\users\admin\appdata\local\temp\kolzuw.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.24483_none_2b200f664577e14b\comctl32.dll
c:\windows\system32\gdi32.dll
Total events
8 726
Read events
8 647
Write events
70
Delete events
9

Modification events

(PID) Process:(4052) kolzuw.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(4052) kolzuw.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(4052) kolzuw.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(4052) kolzuw.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
(PID) Process:(3848) kolzuw.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DRM\amty
Operation:writeName:ilop
Value:
1
(PID) Process:(3848) kolzuw.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(3848) kolzuw.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(3848) kolzuw.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(3848) kolzuw.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
(PID) Process:(3848) kolzuw.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Operation:writeName:csrcs
Value:
C:\Windows\system32\csrcs.exe
Executable files
1
Suspicious files
3
Text files
10
Unknown types
4

Dropped files

PID
Process
Filename
Type
3304csrcs.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B6QGX7LP\n09230945[1].asptext
MD5:FDA44910DEB1A460BE4AC5D56D61D837
SHA256:933B971C6388D594A23FA1559825DB5BEC8ADE2DB1240AA8FC9D0C684949E8C9
3304csrcs.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6BADA8974A10C4BD62CC921D13E43B18_28DEA62A0AE77228DD387E155AD0BA27binary
MD5:A84BC421CCD19A439195B827302A0263
SHA256:5BBEF2C70E435FEA85E0B4DA174BA6105BBDD570D5AC52E6C57DF7BA2797F3AF
3848kolzuw.exeC:\Users\admin\AppData\Local\Temp\autFADA.tmpbinary
MD5:7B360F41FDFB3FA1A5AD5B0E01E6F4E8
SHA256:39F47B76628BC4145FAA008EA7DF2041D29F5F153A356D0F57BD95F541EA4A52
3304csrcs.exeC:\Users\admin\AppData\Local\Temp\autFCDE.tmpbinary
MD5:7B360F41FDFB3FA1A5AD5B0E01E6F4E8
SHA256:39F47B76628BC4145FAA008EA7DF2041D29F5F153A356D0F57BD95F541EA4A52
3848kolzuw.exeC:\Users\admin\AppData\Local\Temp\qcdsqgftext
MD5:601CDDDB0A74C01EB944F02303EDDF1F
SHA256:06047CD43AB69252CC49B725AD01C5E555CD2487D42ACA18CD685BB5835AC46E
3304csrcs.exeC:\Users\admin\AppData\Local\Temp\xitydintext
MD5:601CDDDB0A74C01EB944F02303EDDF1F
SHA256:06047CD43AB69252CC49B725AD01C5E555CD2487D42ACA18CD685BB5835AC46E
3304csrcs.exeC:\Windows\System32\autorun.inbinary
MD5:779820088F831A7670FD58488C4EAA9C
SHA256:CFFC03F9C6A92199A603D08CFC8B53049CB1DA4D78493402C00550C8DD690B98
3304csrcs.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6Z2BCOUL\n09230945[1].asptext
MD5:FDA44910DEB1A460BE4AC5D56D61D837
SHA256:933B971C6388D594A23FA1559825DB5BEC8ADE2DB1240AA8FC9D0C684949E8C9
3304csrcs.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6BADA8974A10C4BD62CC921D13E43B18_28DEA62A0AE77228DD387E155AD0BA27binary
MD5:4F2411AAF429FB50BCC0D84B9C87B9F7
SHA256:9592E3A843D7EE2B2D9B3E3BC56EF79D1A5BF86164623981514B17E71FAB074C
3304csrcs.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157binary
MD5:E4A5F71B2292269BFE8094A324EEC59E
SHA256:4696BA8E50605F19FFA4ECDC8FB94ABEAEFA6B028FF4793BAC32FF4FA3B72F67
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
10
TCP/UDP connections
17
DNS requests
9
Threats
17

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3304
csrcs.exe
GET
304
23.216.154.130:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?fd81cbc265c122d4
unknown
—
—
unknown
3304
csrcs.exe
GET
301
172.67.189.152:80
http://www.whatismyip.com/automation/n09230945.asp
unknown
—
—
unknown
3304
csrcs.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEAo3h2ReX7SMIk79G%2B0UDDw%3D
unknown
binary
1.47 Kb
unknown
3304
csrcs.exe
GET
301
172.67.189.152:80
http://www.whatismyip.com/automation/n09230945.asp
unknown
—
—
unknown
3304
csrcs.exe
GET
301
172.67.189.152:80
http://www.whatismyip.com/automation/n09230945.asp
unknown
—
—
unknown
3304
csrcs.exe
GET
200
34.174.61.199:82
http://www.5eb149c0.com:82/xny.htm
unknown
—
—
unknown
3304
csrcs.exe
GET
200
132.226.247.73:80
http://checkip.dyndns.org/?rnd1=51737.0029023385&rnd2=49768.2278596915
unknown
html
107 b
unknown
3304
csrcs.exe
GET
200
34.174.61.199:80
http://www.5eb149c0.com/xny.htm
unknown
—
—
unknown
3304
csrcs.exe
GET
200
185.53.177.51:80
http://kasy.myhome.cx/kny.htm
unknown
html
7.00 Kb
unknown
1080
svchost.exe
GET
200
23.216.154.130:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?c503292d7802e201
unknown
compressed
67.5 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
—
—
224.0.0.252:5355
—
—
—
unknown
4
System
192.168.100.255:138
—
—
—
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
1080
svchost.exe
224.0.0.252:5355
—
—
—
unknown
3304
csrcs.exe
172.67.189.152:80
www.whatismyip.com
CLOUDFLARENET
US
unknown
3304
csrcs.exe
172.67.189.152:443
www.whatismyip.com
CLOUDFLARENET
US
unknown
3304
csrcs.exe
23.216.154.130:80
ctldl.windowsupdate.com
Akamai International B.V.
IE
unknown
3304
csrcs.exe
192.229.221.95:80
ocsp.digicert.com
EDGECAST
US
whitelisted
3304
csrcs.exe
132.226.247.73:80
checkip.dyndns.org
ORACLE-BMC-31898
BR
unknown
3304
csrcs.exe
34.174.61.199:82
www.5eb149c0.com
GOOGLE-CLOUD-PLATFORM
US
unknown

DNS requests

Domain
IP
Reputation
www.whatismyip.com
  • 172.67.189.152
  • 104.21.89.158
shared
ctldl.windowsupdate.com
  • 23.216.154.130
  • 23.216.154.187
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
checkip.dyndns.org
  • 132.226.247.73
  • 193.122.130.0
  • 193.122.6.168
  • 132.226.8.169
  • 158.101.44.242
shared
www.5eb149c0.com
  • 34.174.61.199
malicious
suse.extasix.com
  • —
unknown
kasy.myhome.cx
  • 185.53.177.51
malicious
www.5eb149c0.com.cn
  • 49.13.77.253
unknown

Threats

PID
Process
Class
Message
3304
csrcs.exe
Attempted Information Leak
ET POLICY IP Check whatismyip.com Automation Page
3304
csrcs.exe
Potential Corporate Privacy Violation
ET POLICY Autoit Windows Automation tool User-Agent in HTTP Request - Possibly Hostile
3304
csrcs.exe
Attempted Information Leak
ET POLICY IP Check Domain (whatismyip in HTTP Host)
3304
csrcs.exe
Potential Corporate Privacy Violation
ET POLICY Autoit Windows Automation tool User-Agent in HTTP Request - Possibly Hostile
3304
csrcs.exe
Attempted Information Leak
ET POLICY IP Check whatismyip.com Automation Page
3304
csrcs.exe
Attempted Information Leak
ET POLICY IP Check Domain (whatismyip in HTTP Host)
3304
csrcs.exe
Potential Corporate Privacy Violation
ET POLICY Autoit Windows Automation tool User-Agent in HTTP Request - Possibly Hostile
3304
csrcs.exe
Attempted Information Leak
ET POLICY IP Check whatismyip.com Automation Page
3304
csrcs.exe
Attempted Information Leak
ET POLICY IP Check Domain (whatismyip in HTTP Host)
1080
svchost.exe
Misc activity
AV INFO Query to checkip.dyndns. Domain
No debug info
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Reports
kolzuw.exe