darkcomet | 1fcca160810d613b3c95e10ae327b23476db7925b00d8befc129912ccd4a3b23

Analysis

max time kernel
102s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2025, 06:38

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General

Target

JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Size

751KB
MD5

c1adf0ba899c7d16676d87b6de8f77aa
SHA1

864065137b6f772d33cf6f35c4224bca73944697
SHA256

1fcca160810d613b3c95e10ae327b23476db7925b00d8befc129912ccd4a3b23
SHA512

4315e35e3df6851877c75261106e5230b7b3289c3d2be61b327b7d2388771f27333a3a9b2d0de48cdabd1024f705711fd3f17ae1b0583df4547564d878410de9
SSDEEP

12288:2eSdWyot/0lsBvyMHEFXKDlwgQVy8/0bpuD41AgB1UMcbBV6PCluBKARnmnxCd/7:/Vv/0l0dHENNVynbgDKB19ctWC0vRh1r

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

mydarkrat.no-ip.org:1604

Mutex

DC_MUTEX-0BSJTXF

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
S9t3Am2D#$wZ
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

rc4.plain

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\\Documents\\MSDCSC\\msdcsc.exe"	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe

Executes dropped EXE 2 IoCs

pid	Process
5932	msdcsc.exe
4772	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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5932 set thread context of 3448	5932	msdcsc.exe	89
PID 4772 set thread context of 4752	4772	msdcsc.exe	101

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 5 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	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeSecurityPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeTakeOwnershipPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeLoadDriverPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeSystemProfilePrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeSystemtimePrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeProfSingleProcessPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeIncBasePriorityPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeCreatePagefilePrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeBackupPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeRestorePrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeShutdownPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeDebugPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeSystemEnvironmentPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeChangeNotifyPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeRemoteShutdownPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeUndockPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeManageVolumePrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeImpersonatePrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeCreateGlobalPrivilege	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: 33	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: 34	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: 35	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: 36	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
Token: SeIncreaseQuotaPrivilege	5932	msdcsc.exe
Token: SeSecurityPrivilege	5932	msdcsc.exe
Token: SeTakeOwnershipPrivilege	5932	msdcsc.exe
Token: SeLoadDriverPrivilege	5932	msdcsc.exe
Token: SeSystemProfilePrivilege	5932	msdcsc.exe
Token: SeSystemtimePrivilege	5932	msdcsc.exe
Token: SeProfSingleProcessPrivilege	5932	msdcsc.exe
Token: SeIncBasePriorityPrivilege	5932	msdcsc.exe
Token: SeCreatePagefilePrivilege	5932	msdcsc.exe
Token: SeBackupPrivilege	5932	msdcsc.exe
Token: SeRestorePrivilege	5932	msdcsc.exe
Token: SeShutdownPrivilege	5932	msdcsc.exe
Token: SeDebugPrivilege	5932	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	5932	msdcsc.exe
Token: SeChangeNotifyPrivilege	5932	msdcsc.exe
Token: SeRemoteShutdownPrivilege	5932	msdcsc.exe
Token: SeUndockPrivilege	5932	msdcsc.exe
Token: SeManageVolumePrivilege	5932	msdcsc.exe
Token: SeImpersonatePrivilege	5932	msdcsc.exe
Token: SeCreateGlobalPrivilege	5932	msdcsc.exe
Token: 33	5932	msdcsc.exe
Token: 34	5932	msdcsc.exe
Token: 35	5932	msdcsc.exe
Token: 36	5932	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	4772	msdcsc.exe
Token: SeSecurityPrivilege	4772	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4772	msdcsc.exe
Token: SeLoadDriverPrivilege	4772	msdcsc.exe
Token: SeSystemProfilePrivilege	4772	msdcsc.exe
Token: SeSystemtimePrivilege	4772	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4772	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4772	msdcsc.exe
Token: SeCreatePagefilePrivilege	4772	msdcsc.exe
Token: SeBackupPrivilege	4772	msdcsc.exe
Token: SeRestorePrivilege	4772	msdcsc.exe
Token: SeShutdownPrivilege	4772	msdcsc.exe
Token: SeDebugPrivilege	4772	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4772	msdcsc.exe
Token: SeChangeNotifyPrivilege	4772	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4772	msdcsc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 5932	2460	cmd.exe	88
PID 2460 wrote to memory of 5932	2460	cmd.exe	88
PID 2460 wrote to memory of 5932	2460	cmd.exe	88
PID 5932 wrote to memory of 3448	5932	msdcsc.exe	89
PID 5932 wrote to memory of 3448	5932	msdcsc.exe	89
PID 5932 wrote to memory of 3448	5932	msdcsc.exe	89
PID 5932 wrote to memory of 3448	5932	msdcsc.exe	89
PID 5932 wrote to memory of 3448	5932	msdcsc.exe	89
PID 748 wrote to memory of 4772	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe	100
PID 748 wrote to memory of 4772	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe	100
PID 748 wrote to memory of 4772	748	JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe	100
PID 4772 wrote to memory of 4752	4772	msdcsc.exe	101
PID 4772 wrote to memory of 4752	4772	msdcsc.exe	101
PID 4772 wrote to memory of 4752	4772	msdcsc.exe	101
PID 4772 wrote to memory of 4752	4772	msdcsc.exe	101
PID 4772 wrote to memory of 4752	4772	msdcsc.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c1adf0ba899c7d16676d87b6de8f77aa.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4772
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4752

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5932
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3448

Network

MITRE ATT&CK Enterprise v16

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\Documents\MSDCSC\msdcsc.exe

Filesize
751KB

MD5
c1adf0ba899c7d16676d87b6de8f77aa

SHA1
864065137b6f772d33cf6f35c4224bca73944697

SHA256
1fcca160810d613b3c95e10ae327b23476db7925b00d8befc129912ccd4a3b23

SHA512
4315e35e3df6851877c75261106e5230b7b3289c3d2be61b327b7d2388771f27333a3a9b2d0de48cdabd1024f705711fd3f17ae1b0583df4547564d878410de9

Download Submit
memory/748-0-0x0000000000400000-0x00000000005B9000-memory.dmp

Filesize
1.7MB

Download
memory/748-1-0x0000000000400000-0x00000000005B9000-memory.dmp

Filesize
1.7MB

Download
memory/748-3-0x0000000002370000-0x0000000002371000-memory.dmp

Filesize
4KB

Download
memory/748-13-0x0000000000400000-0x00000000005B9000-memory.dmp

Filesize
1.7MB

Download
memory/748-14-0x0000000002370000-0x0000000002371000-memory.dmp

Filesize
4KB

Download
memory/748-16-0x0000000000400000-0x00000000005B9000-memory.dmp

Filesize
1.7MB

Download
memory/4772-17-0x0000000000400000-0x00000000005B9000-memory.dmp

Filesize
1.7MB

Download
memory/4772-20-0x0000000000400000-0x00000000005B9000-memory.dmp

Filesize
1.7MB

Download
memory/5932-8-0x0000000000400000-0x00000000005B9000-memory.dmp

Filesize
1.7MB

Download
memory/5932-10-0x0000000002490000-0x0000000002491000-memory.dmp

Filesize
4KB

Download
memory/5932-12-0x0000000000400000-0x00000000005B9000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads