darkcomet | d8e1d628d41a7ec46b1fd2c68be1ae3eb8a43ea63a6820ea28bb8b746ec8ff6d

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-11-2024 21:46

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General

Target

87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Size

273KB
MD5

87f02f971e6c0925f36b48912eee5df4
SHA1

30be3fb266531e04d22d92cc4034a0b0380bfaeb
SHA256

d8e1d628d41a7ec46b1fd2c68be1ae3eb8a43ea63a6820ea28bb8b746ec8ff6d
SHA512

dc92861f8d69b4679987c0778b316841ffbbcafc90de434d1cebb6f2b8d085e16bb0a696bed60ee5defa75dbf890aa1782c8bb296727b2d7c50ac21669127993
SSDEEP

6144:ahfANY9etDofluVdSCfVicJPm6l+CSRg3qvofm2evUEeyMb:qIrHTTNm4+3Rg3BmBvSb

Score

10^/10

darkcomet guest16 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

mile404.no-ip.info:1604

Mutex

DC_MUTEX-U6BQSZ0

Attributes

InstallPath
System\taskhost.exe
gencode
MoHQLCL0MMAD
install
true
offline_keylogger
true
password
Funnel5266
persistence
false
reg_key
taskhost

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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\System\\taskhost.exe"	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1688	taskhost.exe
2852	taskhost.exe

Loads dropped DLL 2 IoCs

pid	Process
2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
1688	taskhost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\taskhost = "C:\\Users\\Admin\\AppData\\Local\\Temp\\System\\taskhost.exe"	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 2496	2256	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	30
PID 1688 set thread context of 2852	1688	taskhost.exe	32

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2496-7-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2496-10-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2496-5-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2496-11-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2496-14-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2496-19-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2496-18-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2496-17-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2496-30-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2852-43-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2852-45-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2852-44-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2852-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2852-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new	taskhost.exe
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new	taskhost.exe

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 4 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskhost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2256	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeSecurityPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeBackupPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeRestorePrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeShutdownPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeDebugPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeUndockPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: 33	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: 34	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: 35	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
Token: SeDebugPrivilege	1688	taskhost.exe
Token: SeIncreaseQuotaPrivilege	2852	taskhost.exe
Token: SeSecurityPrivilege	2852	taskhost.exe
Token: SeTakeOwnershipPrivilege	2852	taskhost.exe
Token: SeLoadDriverPrivilege	2852	taskhost.exe
Token: SeSystemProfilePrivilege	2852	taskhost.exe
Token: SeSystemtimePrivilege	2852	taskhost.exe
Token: SeProfSingleProcessPrivilege	2852	taskhost.exe
Token: SeIncBasePriorityPrivilege	2852	taskhost.exe
Token: SeCreatePagefilePrivilege	2852	taskhost.exe
Token: SeBackupPrivilege	2852	taskhost.exe
Token: SeRestorePrivilege	2852	taskhost.exe
Token: SeShutdownPrivilege	2852	taskhost.exe
Token: SeDebugPrivilege	2852	taskhost.exe
Token: SeSystemEnvironmentPrivilege	2852	taskhost.exe
Token: SeChangeNotifyPrivilege	2852	taskhost.exe
Token: SeRemoteShutdownPrivilege	2852	taskhost.exe
Token: SeUndockPrivilege	2852	taskhost.exe
Token: SeManageVolumePrivilege	2852	taskhost.exe
Token: SeImpersonatePrivilege	2852	taskhost.exe
Token: SeCreateGlobalPrivilege	2852	taskhost.exe
Token: 33	2852	taskhost.exe
Token: 34	2852	taskhost.exe
Token: 35	2852	taskhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2852	taskhost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2496	2256	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	30
PID 2256 wrote to memory of 2496	2256	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	30
PID 2256 wrote to memory of 2496	2256	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	30
PID 2256 wrote to memory of 2496	2256	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	30
PID 2256 wrote to memory of 2496	2256	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	30
PID 2256 wrote to memory of 2496	2256	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	30
PID 2256 wrote to memory of 2496	2256	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	30
PID 2256 wrote to memory of 2496	2256	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	30
PID 2496 wrote to memory of 1688	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	31
PID 2496 wrote to memory of 1688	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	31
PID 2496 wrote to memory of 1688	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	31
PID 2496 wrote to memory of 1688	2496	87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe	31
PID 1688 wrote to memory of 2852	1688	taskhost.exe	32
PID 1688 wrote to memory of 2852	1688	taskhost.exe	32
PID 1688 wrote to memory of 2852	1688	taskhost.exe	32
PID 1688 wrote to memory of 2852	1688	taskhost.exe	32
PID 1688 wrote to memory of 2852	1688	taskhost.exe	32
PID 1688 wrote to memory of 2852	1688	taskhost.exe	32
PID 1688 wrote to memory of 2852	1688	taskhost.exe	32
PID 1688 wrote to memory of 2852	1688	taskhost.exe	32

C:\Users\Admin\AppData\Local\Temp\87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\AppData\Local\Temp\87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\87f02f971e6c0925f36b48912eee5df4_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2496
- - C:\Users\Admin\AppData\Local\Temp\System\taskhost.exe
    "C:\Users\Admin\AppData\Local\Temp\System\taskhost.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1688
  - - C:\Users\Admin\AppData\Local\Temp\System\taskhost.exe
      C:\Users\Admin\AppData\Local\Temp\System\taskhost.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2852

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch

Filesize
478B

MD5
e9122d5d4960538806f49f4b987a0375

SHA1
acfc906595816b1d1c469fa723f8525bd36ff41e

SHA256
915d5b37360510bd90d104f3e3f669ceb7e0d956259e3f0be9d722c3de32b70b

SHA512
d2c2b72b4a0c62241c0217a3273afc6dc492f48fe7ba953281f90a3634f5de3ee8c58ba7f2b42bdfb4043f49a8a0889b191e0c92e1f51e31e2f5df22dff22274

Download Submit
\Users\Admin\AppData\Local\Temp\System\taskhost.exe

Filesize
273KB

MD5
87f02f971e6c0925f36b48912eee5df4

SHA1
30be3fb266531e04d22d92cc4034a0b0380bfaeb

SHA256
d8e1d628d41a7ec46b1fd2c68be1ae3eb8a43ea63a6820ea28bb8b746ec8ff6d

SHA512
dc92861f8d69b4679987c0778b316841ffbbcafc90de434d1cebb6f2b8d085e16bb0a696bed60ee5defa75dbf890aa1782c8bb296727b2d7c50ac21669127993

Download Submit
memory/2256-0-0x00000000747A1000-0x00000000747A2000-memory.dmp

Filesize
4KB

Download
memory/2256-1-0x00000000747A0000-0x0000000074D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2256-2-0x00000000747A0000-0x0000000074D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2256-21-0x00000000747A0000-0x0000000074D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2496-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2496-10-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2496-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2496-14-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2496-19-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2496-18-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2496-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2496-20-0x0000000000140000-0x0000000000141000-memory.dmp

Filesize
4KB

Download
memory/2496-5-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2496-3-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2496-30-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2496-7-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2852-37-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-43-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2852-45-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2852-44-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2852-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2852-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads