darkcomet | 9ec6960f5bd3b7fb89bb21e43520cd348222918a69023f37e248a0732a46c587

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/01/2025, 12:02

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General

Target

JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Size

232KB
MD5

5451c99792e6a12b34a84474f258575a
SHA1

eb5a41dc732107377a8aefea572777d06c5e7b2c
SHA256

9ec6960f5bd3b7fb89bb21e43520cd348222918a69023f37e248a0732a46c587
SHA512

a09d777bf5d38312cbba3925db207ee98811f0e9d66d9ab01d5b3530c43fefc4b8d8a030d38194cf86fa18ce8c2b30345c9989bdad992380c3d242a12c9a4683
SSDEEP

3072:NeYWY2T3N1FrWyIifIJKq7UCZ6STpiSHFV4un13C+qXYRVXLdZb/WnyablH:ZLyNTT1fI+YB9xOun9Chcxx8yab

Score

10^/10

darkcomet discovery evasion persistence rat trojan

Malware Config

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_5451c99792e6a12b34a84474f258575a.exe

Disables RegEdit via registry modification 2 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	iexplore.exe

Disables Task Manager via registry modification
evasion

Deletes itself 1 IoCs

pid	Process
2836	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2852	2712	msdcsc.exe	34

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	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2836	cmd.exe
2876	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2876	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2852	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeSecurityPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeTakeOwnershipPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeLoadDriverPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeSystemProfilePrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeSystemtimePrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeProfSingleProcessPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeIncBasePriorityPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeCreatePagefilePrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeBackupPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeRestorePrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeShutdownPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeDebugPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeSystemEnvironmentPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeChangeNotifyPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeRemoteShutdownPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeUndockPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeManageVolumePrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeImpersonatePrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeCreateGlobalPrivilege	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: 33	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: 34	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: 35	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeIncreaseQuotaPrivilege	2712	msdcsc.exe
Token: SeSecurityPrivilege	2712	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2712	msdcsc.exe
Token: SeLoadDriverPrivilege	2712	msdcsc.exe
Token: SeSystemProfilePrivilege	2712	msdcsc.exe
Token: SeSystemtimePrivilege	2712	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2712	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2712	msdcsc.exe
Token: SeCreatePagefilePrivilege	2712	msdcsc.exe
Token: SeBackupPrivilege	2712	msdcsc.exe
Token: SeRestorePrivilege	2712	msdcsc.exe
Token: SeShutdownPrivilege	2712	msdcsc.exe
Token: SeDebugPrivilege	2712	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2712	msdcsc.exe
Token: SeChangeNotifyPrivilege	2712	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2712	msdcsc.exe
Token: SeUndockPrivilege	2712	msdcsc.exe
Token: SeManageVolumePrivilege	2712	msdcsc.exe
Token: SeImpersonatePrivilege	2712	msdcsc.exe
Token: SeCreateGlobalPrivilege	2712	msdcsc.exe
Token: 33	2712	msdcsc.exe
Token: 34	2712	msdcsc.exe
Token: 35	2712	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2852	iexplore.exe
Token: SeSecurityPrivilege	2852	iexplore.exe
Token: SeTakeOwnershipPrivilege	2852	iexplore.exe
Token: SeLoadDriverPrivilege	2852	iexplore.exe
Token: SeSystemProfilePrivilege	2852	iexplore.exe
Token: SeSystemtimePrivilege	2852	iexplore.exe
Token: SeProfSingleProcessPrivilege	2852	iexplore.exe
Token: SeIncBasePriorityPrivilege	2852	iexplore.exe
Token: SeCreatePagefilePrivilege	2852	iexplore.exe
Token: SeBackupPrivilege	2852	iexplore.exe
Token: SeRestorePrivilege	2852	iexplore.exe
Token: SeShutdownPrivilege	2852	iexplore.exe
Token: SeDebugPrivilege	2852	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2852	iexplore.exe
Token: SeChangeNotifyPrivilege	2852	iexplore.exe
Token: SeRemoteShutdownPrivilege	2852	iexplore.exe
Token: SeUndockPrivilege	2852	iexplore.exe
Token: SeManageVolumePrivilege	2852	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2852	iexplore.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2836	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	30
PID 2316 wrote to memory of 2836	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	30
PID 2316 wrote to memory of 2836	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	30
PID 2316 wrote to memory of 2836	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	30
PID 2836 wrote to memory of 2876	2836	cmd.exe	32
PID 2836 wrote to memory of 2876	2836	cmd.exe	32
PID 2836 wrote to memory of 2876	2836	cmd.exe	32
PID 2836 wrote to memory of 2876	2836	cmd.exe	32
PID 2316 wrote to memory of 2712	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	33
PID 2316 wrote to memory of 2712	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	33
PID 2316 wrote to memory of 2712	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	33
PID 2316 wrote to memory of 2712	2316	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	33
PID 2712 wrote to memory of 2852	2712	msdcsc.exe	34
PID 2712 wrote to memory of 2852	2712	msdcsc.exe	34
PID 2712 wrote to memory of 2852	2712	msdcsc.exe	34
PID 2712 wrote to memory of 2852	2712	msdcsc.exe	34
PID 2712 wrote to memory of 2852	2712	msdcsc.exe	34
PID 2712 wrote to memory of 2852	2712	msdcsc.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe"
1⤵
- 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:2316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 4
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2876
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2712
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Disables RegEdit via registry modification
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - 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

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
232KB

MD5
5451c99792e6a12b34a84474f258575a

SHA1
eb5a41dc732107377a8aefea572777d06c5e7b2c

SHA256
9ec6960f5bd3b7fb89bb21e43520cd348222918a69023f37e248a0732a46c587

SHA512
a09d777bf5d38312cbba3925db207ee98811f0e9d66d9ab01d5b3530c43fefc4b8d8a030d38194cf86fa18ce8c2b30345c9989bdad992380c3d242a12c9a4683

Download Submit
memory/2316-0-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2316-1-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2316-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2712-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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