File name:

monaco guck.exe

Full analysis: https://app.any.run/tasks/445c19e9-2548-43ab-a5aa-ec0b7a8a6efe
Verdict: Malicious activity
Threats:

Quasar is a very popular RAT in the world thanks to its code being available in open-source. This malware can be used to control the victim’s computer remotely.

Malware Trends Tracker     >>>
Analysis date: June 27, 2022, 10:53:10
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
rat
quasar
evasion
trojan
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

C9730861A855C2360BC1C610874CDA86

SHA1:

221BF41D5A328C3690C8AD268CFB819CC7397FBA

SHA256:

90CA44F5D63436A70D023AE571F42C332D88BC468ADED2F9ACF3E9B84A6FB7AC

SSDEEP:

6144:MpNHXf500M8knHTWJbO2SbL1CafH60dcCVVFy2:8d50ZqJbFa1tH6nCVVFy2

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

    • Changes the autorun value in the registry

      • Client.exe (PID: 3140)
      • monaco guck.exe (PID: 2636)

    • QUASAR detected by memory dumps

      • Client.exe (PID: 3140)

    • Drops executable file immediately after starts

      • monaco guck.exe (PID: 2636)

    • Drops/Copies Quasar RAT executable

      • monaco guck.exe (PID: 2636)

  • SUSPICIOUS

    • Checks supported languages

      • monaco guck.exe (PID: 2636)
      • Client.exe (PID: 3140)

    • Reads the computer name

      • monaco guck.exe (PID: 2636)
      • Client.exe (PID: 3140)

    • Checks for external IP

      • monaco guck.exe (PID: 2636)
      • Client.exe (PID: 3140)

    • Creates files in the user directory

      • Client.exe (PID: 3140)
      • monaco guck.exe (PID: 2636)

    • Reads Environment values

      • Client.exe (PID: 3140)
      • monaco guck.exe (PID: 2636)

    • Starts itself from another location

      • monaco guck.exe (PID: 2636)

    • Executable content was dropped or overwritten

      • monaco guck.exe (PID: 2636)

    • Drops a file with a compile date too recent

      • monaco guck.exe (PID: 2636)

    • Reads Microsoft Outlook installation path

      • iexplore.exe (PID: 3564)

    • Starts Internet Explorer

      • Client.exe (PID: 3140)

  • INFO

    • Checks supported languages

      • explorer.exe (PID: 188)
      • iexplore.exe (PID: 2956)
      • iexplore.exe (PID: 3564)

    • Manual execution by user

      • explorer.exe (PID: 188)

    • Reads the computer name

      • explorer.exe (PID: 188)
      • iexplore.exe (PID: 2956)
      • iexplore.exe (PID: 3564)

    • Changes internet zones settings

      • iexplore.exe (PID: 2956)

    • Checks Windows Trust Settings

      • iexplore.exe (PID: 3564)
      • iexplore.exe (PID: 2956)

    • Creates files in the user directory

      • iexplore.exe (PID: 3564)

    • Reads settings of System Certificates

      • iexplore.exe (PID: 3564)
      • iexplore.exe (PID: 2956)

    • Application launched itself

      • iexplore.exe (PID: 2956)

    • Reads internet explorer settings

      • iexplore.exe (PID: 3564)

    • Dropped object may contain Bitcoin addresses

      • iexplore.exe (PID: 3564)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

Quasar

(PID) Process(3140) Client.exe
Version1.3.0.0
C2 (2)niggahunter88-33934.portmap.io:33934
Sub_DirSubDir
Install_NameClient.exe
MutexQSR_MUTEX_q2Tul7nBUKmd8SX6eg
Startupruntime brocker
Tagwdadsa
LogDirLogs
Signature
Certificate
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (56.7)
.exe | Win64 Executable (generic) (21.3)
.scr | Windows screen saver (10.1)
.dll | Win32 Dynamic Link Library (generic) (5)
.exe | Win32 Executable (generic) (3.4)

EXIF

EXE

AssemblyVersion: 1.3.0.0
ProductVersion: 1.3.0.0
ProductName: -
OriginalFileName: Client.exe
LegalTrademarks: -
LegalCopyright: -
InternalName: Client.exe
FileVersion: 1.3.0.0
FileDescription: -
CompanyName: -
Comments: -
CharacterSet: Unicode
LanguageCode: Neutral
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 1.3.0.0
FileVersionNumber: 1.3.0.0
Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x581be
UninitializedDataSize: -
InitializedDataSize: 3072
CodeSize: 352768
LinkerVersion: 8
PEType: PE32
TimeStamp: 2022:06:27 12:21:54+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 27-Jun-2022 10:21:54
Comments: -
CompanyName: -
FileDescription: -
FileVersion: 1.3.0.0
InternalName: Client.exe
LegalCopyright: -
LegalTrademarks: -
OriginalFilename: Client.exe
ProductName: -
ProductVersion: 1.3.0.0
Assembly Version: 1.3.0.0

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 27-Jun-2022 10:21:54
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x000561C4
0x00056200
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.44471
.rsrc
0x0005A000
0x00000A00
0x00000A00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.23597
.reloc
0x0005C000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.22615
1171
UNKNOWN
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
41
Monitored processes
5
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start monaco guck.exe #QUASAR client.exe explorer.exe no specs iexplore.exe iexplore.exe

Process information

PID
CMD
Path
Indicators
Parent process
188"C:\Windows\explorer.exe" C:\Windows\explorer.exe—Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\explorer.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\system32\gdi32.dll
c:\windows\system32\user32.dll
2636"C:\Users\admin\AppData\Local\Temp\monaco guck.exe" C:\Users\admin\AppData\Local\Temp\monaco guck.exe
Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Version:
1.3.0.0
Modules
Images
c:\users\admin\appdata\local\temp\monaco guck.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll
2956"C:\Program Files\Internet Explorer\iexplore.exe" https://discord.gg/tipicoC:\Program Files\Internet Explorer\iexplore.exe
Client.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\sechost.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\api-ms-win-downlevel-version-l1-1-0.dll
3140"C:\Users\admin\AppData\Roaming\SubDir\Client.exe"C:\Users\admin\AppData\Roaming\SubDir\Client.exe
monaco guck.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Version:
1.3.0.0
Modules
Images
c:\users\admin\appdata\roaming\subdir\client.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll
Quasar
(PID) Process(3140) Client.exe
Version1.3.0.0
C2 (2)niggahunter88-33934.portmap.io:33934
Sub_DirSubDir
Install_NameClient.exe
MutexQSR_MUTEX_q2Tul7nBUKmd8SX6eg
Startupruntime brocker
Tagwdadsa
LogDirLogs
Signature
Certificate
3564"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:2956 CREDAT:267521 /prefetch:2C:\Program Files\Internet Explorer\iexplore.exe
iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\api-ms-win-downlevel-version-l1-1-0.dll
Total events
50 757
Read events
50 631
Write events
126
Delete events
0

Modification events

(PID) Process:(2636) monaco guck.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\monaco guck_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2636) monaco guck.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\monaco guck_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2636) monaco guck.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\monaco guck_RASAPI32
Operation:writeName:FileTracingMask
Value:
(PID) Process:(2636) monaco guck.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\monaco guck_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
(PID) Process:(2636) monaco guck.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\monaco guck_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(2636) monaco guck.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\monaco guck_RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
(PID) Process:(2636) monaco guck.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\monaco guck_RASMANCS
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2636) monaco guck.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\monaco guck_RASMANCS
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2636) monaco guck.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\monaco guck_RASMANCS
Operation:writeName:FileTracingMask
Value:
(PID) Process:(2636) monaco guck.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\monaco guck_RASMANCS
Operation:writeName:ConsoleTracingMask
Value:
Executable files
1
Suspicious files
6
Text files
13
Unknown types
2

Dropped files

PID
Process
Filename
Type
3564iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\5IWPIAR9\076a8c1a0cc790ebd989[1].js —
MD5:—
SHA256:—
3564iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157binary
MD5:—
SHA256:—
2636monaco guck.exeC:\Users\admin\AppData\Roaming\SubDir\Client.exeexecutable
MD5:—
SHA256:—
3564iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\5IWPIAR9\33477ca435122663924d[1].jstext
MD5:—
SHA256:—
3564iexplore.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\Low\O15G52C4.txttext
MD5:—
SHA256:—
3564iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6BADA8974A10C4BD62CC921D13E43B18_28DEA62A0AE77228DD387E155AD0BA27der
MD5:—
SHA256:—
3564iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\5IWPIAR9\tipico[1].htmhtml
MD5:—
SHA256:—
3564iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DY534W2X\40532.94c43fc1ce60aa8ff6f2[1].csstext
MD5:—
SHA256:—
3564iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DY534W2X\8cdf600873d1c69152ae[1].jstext
MD5:—
SHA256:—
3564iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\5IWPIAR9\4ab2e34c43716319b622[1].jstext
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
24
DNS requests
11
Threats
16

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2956
iexplore.exe
GET
200
93.184.220.29:80
http://crl3.digicert.com/Omniroot2025.crl
US
der
7.78 Kb
whitelisted
2636
monaco guck.exe
GET
200
208.95.112.1:80
http://ip-api.com/json/
unknown
binary
279 b
malicious
3140
Client.exe
GET
200
208.95.112.1:80
http://ip-api.com/json/
unknown
binary
279 b
malicious
3564
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEAo3h2ReX7SMIk79G%2B0UDDw%3D
US
der
1.47 Kb
whitelisted
3564
iexplore.exe
GET
200
209.197.3.8:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?bd37142251af9be6
US
compressed
4.70 Kb
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2636
monaco guck.exe
208.95.112.1:80
ip-api.com
IBURST
—
malicious
3140
Client.exe
208.95.112.1:80
ip-api.com
IBURST
—
malicious
3564
iexplore.exe
209.197.3.8:80
ctldl.windowsupdate.com
Highwinds Network Group, Inc.
US
whitelisted
3564
iexplore.exe
162.159.134.234:443
discord.gg
Cloudflare Inc
—
shared
3564
iexplore.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
2956
iexplore.exe
131.253.33.200:443
www.bing.com
Microsoft Corporation
US
whitelisted
2956
iexplore.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
2956
iexplore.exe
162.159.138.232:443
discord.com
Cloudflare Inc
—
malicious
—
—
162.159.138.232:443
discord.com
Cloudflare Inc
—
malicious
3140
Client.exe
193.161.193.99:33934
niggahunter88-33934.portmap.io
OOO Bitree Networks
RU
malicious

DNS requests

Domain
IP
Reputation
ip-api.com
  • 208.95.112.1
malicious
niggahunter88-33934.portmap.io
  • 193.161.193.99
malicious
discord.gg
  • 162.159.134.234
  • 162.159.136.234
  • 162.159.135.234
  • 162.159.130.234
  • 162.159.133.234
whitelisted
ctldl.windowsupdate.com
  • 209.197.3.8
whitelisted
ocsp.digicert.com
  • 93.184.220.29
whitelisted
discord.com
  • 162.159.138.232
  • 162.159.137.232
  • 162.159.136.232
  • 162.159.128.233
  • 162.159.135.232
whitelisted
api.bing.com
  • 13.107.5.80
whitelisted
www.bing.com
  • 131.253.33.200
  • 13.107.22.200
whitelisted
crl3.digicert.com
  • 93.184.220.29
whitelisted

Threats

PID
Process
Class
Message
2636
monaco guck.exe
Potential Corporate Privacy Violation
ET POLICY External IP Lookup ip-api.com
2636
monaco guck.exe
A Network Trojan was detected
ET TROJAN Common RAT Connectivity Check Observed
2636
monaco guck.exe
Potential Corporate Privacy Violation
AV POLICY Internal Host Retrieving External IP Address (ip-api. com)
3140
Client.exe
Potential Corporate Privacy Violation
ET POLICY External IP Lookup ip-api.com
3140
Client.exe
A Network Trojan was detected
ET TROJAN Common RAT Connectivity Check Observed
3140
Client.exe
Potential Corporate Privacy Violation
AV POLICY Internal Host Retrieving External IP Address (ip-api. com)
—
—
Potential Corporate Privacy Violation
ET POLICY DNS Query to a Reverse Proxy Service Observed
—
—
Misc activity
ET INFO Observed Discord Domain in DNS Lookup (discord .com)
3564
iexplore.exe
Misc activity
ET INFO Observed Discord Domain (discord .com in TLS SNI)
3564
iexplore.exe
Misc activity
ET INFO Observed Discord Domain (discord .com in TLS SNI)
No debug info
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Reports
monaco guck.exe