darkcomet | 4ade0105a20cc8526b2cb0a10f41d5d1b9a38ba1b0d100334a22827f5ff372b6

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
21-04-2024 18:34

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General

Target

ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Size

662KB
MD5

ffe8ce138a60c8bed31cbbc68df42a51
SHA1

10f741c31f368e32098b98677020070f90e33e4f
SHA256

4ade0105a20cc8526b2cb0a10f41d5d1b9a38ba1b0d100334a22827f5ff372b6
SHA512

94ff17a28a3ceb10330c8f4a20f7528373dfd3f8f290f66b0860205dd1add2de49bc349a440ad5abdffdac92edde2925c29469bd5c9b4040351a45afa989dc16
SSDEEP

12288:I3OpvNW4a76S/Ddon/m09bbYlIaaMcE2YGhq3vo1RnfAvIESJgoE26yc/R3:+OA4aWNn/m09fKIaaBEtWq3A1Ov8JgbB

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

fabhack.no-ip.org:1604

Mutex

DC_MUTEX-VSESWT5

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
wt0idq7E8snk
install
true
offline_keylogger
true
password
99889900
persistence
true
reg_key
MicroUpdate

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

Processes:

ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.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"	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
2404	attrib.exe
4760	attrib.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

Processes:

ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid	Process
3700	notepad.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
3940	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid	Process
3940	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeSecurityPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeBackupPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeRestorePrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeShutdownPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeDebugPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeUndockPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: 33	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: 34	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: 35	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: 36	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3940	msdcsc.exe
Token: SeSecurityPrivilege	3940	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3940	msdcsc.exe
Token: SeLoadDriverPrivilege	3940	msdcsc.exe
Token: SeSystemProfilePrivilege	3940	msdcsc.exe
Token: SeSystemtimePrivilege	3940	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3940	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3940	msdcsc.exe
Token: SeCreatePagefilePrivilege	3940	msdcsc.exe
Token: SeBackupPrivilege	3940	msdcsc.exe
Token: SeRestorePrivilege	3940	msdcsc.exe
Token: SeShutdownPrivilege	3940	msdcsc.exe
Token: SeDebugPrivilege	3940	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3940	msdcsc.exe
Token: SeChangeNotifyPrivilege	3940	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3940	msdcsc.exe
Token: SeUndockPrivilege	3940	msdcsc.exe
Token: SeManageVolumePrivilege	3940	msdcsc.exe
Token: SeImpersonatePrivilege	3940	msdcsc.exe
Token: SeCreateGlobalPrivilege	3940	msdcsc.exe
Token: 33	3940	msdcsc.exe
Token: 34	3940	msdcsc.exe
Token: 35	3940	msdcsc.exe
Token: 36	3940	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
3940	msdcsc.exe

Suspicious use of WriteProcessMemory 54 IoCs

Processes:

ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.execmd.execmd.exemsdcsc.exe

description	pid	Process	procid_target
PID 4740 wrote to memory of 3240	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	86
PID 4740 wrote to memory of 3240	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	86
PID 4740 wrote to memory of 3240	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	86
PID 4740 wrote to memory of 1864	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	88
PID 4740 wrote to memory of 1864	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	88
PID 4740 wrote to memory of 1864	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	88
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 4740 wrote to memory of 3700	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	89
PID 1864 wrote to memory of 2404	1864	cmd.exe	91
PID 1864 wrote to memory of 2404	1864	cmd.exe	91
PID 1864 wrote to memory of 2404	1864	cmd.exe	91
PID 3240 wrote to memory of 4760	3240	cmd.exe	92
PID 3240 wrote to memory of 4760	3240	cmd.exe	92
PID 3240 wrote to memory of 4760	3240	cmd.exe	92
PID 4740 wrote to memory of 3940	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	93
PID 4740 wrote to memory of 3940	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	93
PID 4740 wrote to memory of 3940	4740	ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe	93
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94
PID 3940 wrote to memory of 4092	3940	msdcsc.exe	94

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
2404	attrib.exe
4760	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3240
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:4760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1864
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:2404
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:3700
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3940
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:4092

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
662KB

MD5
ffe8ce138a60c8bed31cbbc68df42a51

SHA1
10f741c31f368e32098b98677020070f90e33e4f

SHA256
4ade0105a20cc8526b2cb0a10f41d5d1b9a38ba1b0d100334a22827f5ff372b6

SHA512
94ff17a28a3ceb10330c8f4a20f7528373dfd3f8f290f66b0860205dd1add2de49bc349a440ad5abdffdac92edde2925c29469bd5c9b4040351a45afa989dc16

Download Submit
memory/3700-3-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/3940-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-62-0x00000000007E0000-0x00000000007E1000-memory.dmp

Filesize
4KB

Download
memory/3940-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3940-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4092-63-0x0000000000630000-0x0000000000631000-memory.dmp

Filesize
4KB

Download
memory/4740-0-0x0000000002250000-0x0000000002251000-memory.dmp

Filesize
4KB

Download
memory/4740-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download