darkcomet | 63a23f9dbf6ec00c1dba46bd68901e5599eab40ea91ae38b6496bc256ccd2221

Analysis

max time kernel
148s
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
17/10/2024, 06:55

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General

Target

51211dcab121d88241ea3cc31ec971aa_JaffaCakes118.exe
Size

731KB
MD5

51211dcab121d88241ea3cc31ec971aa
SHA1

4a26643f051dce657ec25b034ec185d90e96c163
SHA256

63a23f9dbf6ec00c1dba46bd68901e5599eab40ea91ae38b6496bc256ccd2221
SHA512

52368d085f66c5cfe24f26adf437b780839f3c2831ab814c70fea802cd995e746429b12378a078164b9a648eb5a3919eaddab5e43911e7f6654f213d837e97d8
SSDEEP

12288:AZjYKTIA4VmFrxpe9R8IobKp1GmQ32cdGqpvb+coomx/g4akuS9P5f4BQIFq:MjYKTIAI6piCIbpX6tzpydxY9kJ4aI4

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat 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\\Documents\\MSDCSC\\msdcsc.exe"	15821.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	15821.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	51211dcab121d88241ea3cc31ec971aa_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3200	15821.exe
3596	msdcsc.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	15821.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3596 set thread context of 3284	3596	msdcsc.exe	89

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	51211dcab121d88241ea3cc31ec971aa_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	15821.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	51211dcab121d88241ea3cc31ec971aa_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3200	15821.exe
Token: SeSecurityPrivilege	3200	15821.exe
Token: SeTakeOwnershipPrivilege	3200	15821.exe
Token: SeLoadDriverPrivilege	3200	15821.exe
Token: SeSystemProfilePrivilege	3200	15821.exe
Token: SeSystemtimePrivilege	3200	15821.exe
Token: SeProfSingleProcessPrivilege	3200	15821.exe
Token: SeIncBasePriorityPrivilege	3200	15821.exe
Token: SeCreatePagefilePrivilege	3200	15821.exe
Token: SeBackupPrivilege	3200	15821.exe
Token: SeRestorePrivilege	3200	15821.exe
Token: SeShutdownPrivilege	3200	15821.exe
Token: SeDebugPrivilege	3200	15821.exe
Token: SeSystemEnvironmentPrivilege	3200	15821.exe
Token: SeChangeNotifyPrivilege	3200	15821.exe
Token: SeRemoteShutdownPrivilege	3200	15821.exe
Token: SeUndockPrivilege	3200	15821.exe
Token: SeManageVolumePrivilege	3200	15821.exe
Token: SeImpersonatePrivilege	3200	15821.exe
Token: SeCreateGlobalPrivilege	3200	15821.exe
Token: 33	3200	15821.exe
Token: 34	3200	15821.exe
Token: 35	3200	15821.exe
Token: 36	3200	15821.exe
Token: SeIncreaseQuotaPrivilege	3596	msdcsc.exe
Token: SeSecurityPrivilege	3596	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3596	msdcsc.exe
Token: SeLoadDriverPrivilege	3596	msdcsc.exe
Token: SeSystemProfilePrivilege	3596	msdcsc.exe
Token: SeSystemtimePrivilege	3596	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3596	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3596	msdcsc.exe
Token: SeCreatePagefilePrivilege	3596	msdcsc.exe
Token: SeBackupPrivilege	3596	msdcsc.exe
Token: SeRestorePrivilege	3596	msdcsc.exe
Token: SeShutdownPrivilege	3596	msdcsc.exe
Token: SeDebugPrivilege	3596	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3596	msdcsc.exe
Token: SeChangeNotifyPrivilege	3596	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3596	msdcsc.exe
Token: SeUndockPrivilege	3596	msdcsc.exe
Token: SeManageVolumePrivilege	3596	msdcsc.exe
Token: SeImpersonatePrivilege	3596	msdcsc.exe
Token: SeCreateGlobalPrivilege	3596	msdcsc.exe
Token: 33	3596	msdcsc.exe
Token: 34	3596	msdcsc.exe
Token: 35	3596	msdcsc.exe
Token: 36	3596	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	3284	iexplore.exe
Token: SeSecurityPrivilege	3284	iexplore.exe
Token: SeTakeOwnershipPrivilege	3284	iexplore.exe
Token: SeLoadDriverPrivilege	3284	iexplore.exe
Token: SeSystemProfilePrivilege	3284	iexplore.exe
Token: SeSystemtimePrivilege	3284	iexplore.exe
Token: SeProfSingleProcessPrivilege	3284	iexplore.exe
Token: SeIncBasePriorityPrivilege	3284	iexplore.exe
Token: SeCreatePagefilePrivilege	3284	iexplore.exe
Token: SeBackupPrivilege	3284	iexplore.exe
Token: SeRestorePrivilege	3284	iexplore.exe
Token: SeShutdownPrivilege	3284	iexplore.exe
Token: SeDebugPrivilege	3284	iexplore.exe
Token: SeSystemEnvironmentPrivilege	3284	iexplore.exe
Token: SeChangeNotifyPrivilege	3284	iexplore.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 3200	2032	51211dcab121d88241ea3cc31ec971aa_JaffaCakes118.exe	87
PID 2032 wrote to memory of 3200	2032	51211dcab121d88241ea3cc31ec971aa_JaffaCakes118.exe	87
PID 2032 wrote to memory of 3200	2032	51211dcab121d88241ea3cc31ec971aa_JaffaCakes118.exe	87
PID 3200 wrote to memory of 3596	3200	15821.exe	88
PID 3200 wrote to memory of 3596	3200	15821.exe	88
PID 3200 wrote to memory of 3596	3200	15821.exe	88
PID 3596 wrote to memory of 3284	3596	msdcsc.exe	89
PID 3596 wrote to memory of 3284	3596	msdcsc.exe	89
PID 3596 wrote to memory of 3284	3596	msdcsc.exe	89
PID 3596 wrote to memory of 3284	3596	msdcsc.exe	89
PID 3596 wrote to memory of 3284	3596	msdcsc.exe	89

C:\Users\Admin\AppData\Local\Temp\51211dcab121d88241ea3cc31ec971aa_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\51211dcab121d88241ea3cc31ec971aa_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\iTV2HwOA\15821.exe
  "C:\Users\Admin\AppData\Local\Temp\iTV2HwOA\15821.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3200
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3596
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:3284

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\iTV2HwOA\15821.exe

Filesize
723KB

MD5
13e85020641ce2e0a8ff65c16bc19fe2

SHA1
0018ed318a76db3d7dfd932cba3dd2279f3367c1

SHA256
b63938ca2500d8d812b53eed503b4278da748f226587e869c2bab925903522ed

SHA512
6c060bf68522447e16ac26b68b0daf67b1b14f80ad262d63afc96cb9930b78d89aa0c4665b24d706b1edd23f88892ce9b9f33a763b24b87d3ffb6293e253e9e2

Download Submit
memory/2032-0-0x0000000075352000-0x0000000075353000-memory.dmp

Filesize
4KB

Download
memory/2032-1-0x0000000075350000-0x0000000075901000-memory.dmp

Filesize
5.7MB

Download
memory/2032-2-0x0000000075350000-0x0000000075901000-memory.dmp

Filesize
5.7MB

Download
memory/2032-15-0x0000000075350000-0x0000000075901000-memory.dmp

Filesize
5.7MB

Download
memory/3200-16-0x00000000022B0000-0x00000000022B1000-memory.dmp

Filesize
4KB

Download
memory/3200-28-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/3284-31-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/3596-30-0x0000000002010000-0x0000000002011000-memory.dmp

Filesize
4KB

Download
memory/3596-32-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads