darkcomet | 58eeaaa78a65542456268a9bb5a3129e72c504e2e4e1163417f9be321161bc25

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-10-2024 08:10

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General

Target

7894751afeacdc7317d70902b0aef553_JaffaCakes118.exe
Size

268KB
MD5

7894751afeacdc7317d70902b0aef553
SHA1

5ced79e8a348593eb3a89af9bfc5eea48ce0e750
SHA256

58eeaaa78a65542456268a9bb5a3129e72c504e2e4e1163417f9be321161bc25
SHA512

53f407d9c04a77bd811259ccc07dd271c547ac743fd5f44326687b6e5a3e66310da7ffb309f835da62c682b60e38337ce47c629f78e3ffdaef161df33253bd0f
SSDEEP

6144:dW8Wjz5CeTL8uxOWGoIn0TeifwjRBU9dTtsVJ1JQS:k8LWYdW7In0T5iRBYZaVJ1i

Score

10^/10

darkcomet arda abm discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

arda abm

brutalgamingtr.duckdns.org:1604

Mutex

DC_MUTEX-QBW42PW

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
GU08ZVMZvZev
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

PgHhjEj0.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	PgHhjEj0.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

PgHhjEj0.exe7894751afeacdc7317d70902b0aef553_JaffaCakes118.exePgHhjEj.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	PgHhjEj0.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	7894751afeacdc7317d70902b0aef553_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	PgHhjEj.exe

Executes dropped EXE 3 IoCs

Processes:

PgHhjEj.exePgHhjEj0.exemsdcsc.exe

pid	Process
3100	PgHhjEj.exe
3996	PgHhjEj0.exe
508	msdcsc.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

PgHhjEj.exePgHhjEj0.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PgHhjEj = "C:\\Users\\Admin\\AppData\\Local\\Temp\\PgHhjEj.exe"	PgHhjEj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	PgHhjEj0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PgHhjEj = "C:\\Users\\Admin\\AppData\\Local\\Temp\\PgHhjEj.exe"	PgHhjEj.exe

UPX packed file 19 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/files/0x000a000000023b8a-23.dat	upx
behavioral2/memory/3996-30-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3996-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-97-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-98-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-99-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-100-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-101-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-102-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-103-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-104-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-105-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-106-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-107-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-108-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/508-109-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

PgHhjEj0.exemsdcsc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PgHhjEj0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

Processes:

PgHhjEj0.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	PgHhjEj0.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

Processes:

7894751afeacdc7317d70902b0aef553_JaffaCakes118.exePgHhjEj.exePgHhjEj0.exemsdcsc.exe

description	pid	Process
Token: SeDebugPrivilege	2488	7894751afeacdc7317d70902b0aef553_JaffaCakes118.exe
Token: SeDebugPrivilege	3100	PgHhjEj.exe
Token: SeIncreaseQuotaPrivilege	3996	PgHhjEj0.exe
Token: SeSecurityPrivilege	3996	PgHhjEj0.exe
Token: SeTakeOwnershipPrivilege	3996	PgHhjEj0.exe
Token: SeLoadDriverPrivilege	3996	PgHhjEj0.exe
Token: SeSystemProfilePrivilege	3996	PgHhjEj0.exe
Token: SeSystemtimePrivilege	3996	PgHhjEj0.exe
Token: SeProfSingleProcessPrivilege	3996	PgHhjEj0.exe
Token: SeIncBasePriorityPrivilege	3996	PgHhjEj0.exe
Token: SeCreatePagefilePrivilege	3996	PgHhjEj0.exe
Token: SeBackupPrivilege	3996	PgHhjEj0.exe
Token: SeRestorePrivilege	3996	PgHhjEj0.exe
Token: SeShutdownPrivilege	3996	PgHhjEj0.exe
Token: SeDebugPrivilege	3996	PgHhjEj0.exe
Token: SeSystemEnvironmentPrivilege	3996	PgHhjEj0.exe
Token: SeChangeNotifyPrivilege	3996	PgHhjEj0.exe
Token: SeRemoteShutdownPrivilege	3996	PgHhjEj0.exe
Token: SeUndockPrivilege	3996	PgHhjEj0.exe
Token: SeManageVolumePrivilege	3996	PgHhjEj0.exe
Token: SeImpersonatePrivilege	3996	PgHhjEj0.exe
Token: SeCreateGlobalPrivilege	3996	PgHhjEj0.exe
Token: 33	3996	PgHhjEj0.exe
Token: 34	3996	PgHhjEj0.exe
Token: 35	3996	PgHhjEj0.exe
Token: 36	3996	PgHhjEj0.exe
Token: SeIncreaseQuotaPrivilege	508	msdcsc.exe
Token: SeSecurityPrivilege	508	msdcsc.exe
Token: SeTakeOwnershipPrivilege	508	msdcsc.exe
Token: SeLoadDriverPrivilege	508	msdcsc.exe
Token: SeSystemProfilePrivilege	508	msdcsc.exe
Token: SeSystemtimePrivilege	508	msdcsc.exe
Token: SeProfSingleProcessPrivilege	508	msdcsc.exe
Token: SeIncBasePriorityPrivilege	508	msdcsc.exe
Token: SeCreatePagefilePrivilege	508	msdcsc.exe
Token: SeBackupPrivilege	508	msdcsc.exe
Token: SeRestorePrivilege	508	msdcsc.exe
Token: SeShutdownPrivilege	508	msdcsc.exe
Token: SeDebugPrivilege	508	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	508	msdcsc.exe
Token: SeChangeNotifyPrivilege	508	msdcsc.exe
Token: SeRemoteShutdownPrivilege	508	msdcsc.exe
Token: SeUndockPrivilege	508	msdcsc.exe
Token: SeManageVolumePrivilege	508	msdcsc.exe
Token: SeImpersonatePrivilege	508	msdcsc.exe
Token: SeCreateGlobalPrivilege	508	msdcsc.exe
Token: 33	508	msdcsc.exe
Token: 34	508	msdcsc.exe
Token: 35	508	msdcsc.exe
Token: 36	508	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
508	msdcsc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

7894751afeacdc7317d70902b0aef553_JaffaCakes118.exePgHhjEj.exePgHhjEj0.exe

description	pid	Process	procid_target
PID 2488 wrote to memory of 3100	2488	7894751afeacdc7317d70902b0aef553_JaffaCakes118.exe	86
PID 2488 wrote to memory of 3100	2488	7894751afeacdc7317d70902b0aef553_JaffaCakes118.exe	86
PID 3100 wrote to memory of 3996	3100	PgHhjEj.exe	87
PID 3100 wrote to memory of 3996	3100	PgHhjEj.exe	87
PID 3100 wrote to memory of 3996	3100	PgHhjEj.exe	87
PID 3996 wrote to memory of 508	3996	PgHhjEj0.exe	89
PID 3996 wrote to memory of 508	3996	PgHhjEj0.exe	89
PID 3996 wrote to memory of 508	3996	PgHhjEj0.exe	89

C:\Users\Admin\AppData\Local\Temp\7894751afeacdc7317d70902b0aef553_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7894751afeacdc7317d70902b0aef553_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Users\Admin\AppData\Local\Temp\PgHhjEj.exe
  "C:\Users\Admin\AppData\Local\Temp\PgHhjEj.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3100
- - C:\Users\Admin\AppData\Local\Temp\PgHhjEj0.exe
    "C:\Users\Admin\AppData\Local\Temp\PgHhjEj0.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Checks computer location settings
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3996
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\PgHhjEj.exe

Filesize
268KB

MD5
7894751afeacdc7317d70902b0aef553

SHA1
5ced79e8a348593eb3a89af9bfc5eea48ce0e750

SHA256
58eeaaa78a65542456268a9bb5a3129e72c504e2e4e1163417f9be321161bc25

SHA512
53f407d9c04a77bd811259ccc07dd271c547ac743fd5f44326687b6e5a3e66310da7ffb309f835da62c682b60e38337ce47c629f78e3ffdaef161df33253bd0f

Download Submit
C:\Users\Admin\AppData\Local\Temp\PgHhjEj0.exe

Filesize
251KB

MD5
4788ee8c0cd9fca62a651d07a39e4f0e

SHA1
849f1161702b4a7e49b2a9b599f59bc2f03711f9

SHA256
090cc66b91ee48c47c523508a5096e1eac63017a905592f903eae48a295d8791

SHA512
e4bf7caf34b3fb176f9d275bdba8217b7c4f106f60489a6c93b82d239ffda058c238c633301a7abe9c36b3d2a2b36216f3155a63498b0554fd0ef84a8b2764ae

Download Submit
memory/508-101-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-104-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-97-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-109-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-98-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-108-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-107-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-99-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-106-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-105-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-103-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-102-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/508-100-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2488-0-0x00007FFA89F85000-0x00007FFA89F86000-memory.dmp

Filesize
4KB

Download
memory/2488-16-0x00007FFA89CD0000-0x00007FFA8A671000-memory.dmp

Filesize
9.6MB

Download
memory/2488-1-0x00007FFA89CD0000-0x00007FFA8A671000-memory.dmp

Filesize
9.6MB

Download
memory/3100-82-0x00007FFA89CD0000-0x00007FFA8A671000-memory.dmp

Filesize
9.6MB

Download
memory/3100-19-0x00007FFA89CD0000-0x00007FFA8A671000-memory.dmp

Filesize
9.6MB

Download
memory/3100-17-0x00007FFA89CD0000-0x00007FFA8A671000-memory.dmp

Filesize
9.6MB

Download
memory/3100-18-0x00007FFA89CD0000-0x00007FFA8A671000-memory.dmp

Filesize
9.6MB

Download
memory/3996-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3996-30-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download