darkcomet | 48f6c4f34922b01cfdea0eb8e90798d6334678aa24ffb60cd284028bf9cca7de

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/02/2025, 20:50

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General

Target

JaffaCakes118_0e1eb8cff971ae5cbd4dc988764e420f.exe
Size

423KB
MD5

0e1eb8cff971ae5cbd4dc988764e420f
SHA1

8c7f60eb1be1c8f89aad7eb26c472437321b95bc
SHA256

48f6c4f34922b01cfdea0eb8e90798d6334678aa24ffb60cd284028bf9cca7de
SHA512

a428306391973c802f81e96b7d123aafebe5c6eb83eb54dc7c962eb256aa2eb37f8ae22f986fcaeae9da4a7c753ee460504e0ff297c9a62d46d337c84c68530d
SSDEEP

6144:VSncR8Zp5Ogg3VuwK0kiKPliq6peQmKbx+y8jIDIM8TAex5xqDfb9/6hSBhMH:84kqgg3AR0kbi7y28Ur8Td5mb1/O

Score

10^/10

darkcomet server1 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Server1

192.168.178.20:1604

Mutex

DC_MUTEX-H3BKM6P

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
ANpydjYglJBM
install
true
offline_keylogger
true
password
ACDC2009#a
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"	TESTSERVER.EXE.EXE

Executes dropped EXE 2 IoCs

pid	Process
2176	TESTSERVER.EXE.EXE
2996	msdcsc.exe

Loads dropped DLL 4 IoCs

pid	Process
1912	JaffaCakes118_0e1eb8cff971ae5cbd4dc988764e420f.exe
1912	JaffaCakes118_0e1eb8cff971ae5cbd4dc988764e420f.exe
2176	TESTSERVER.EXE.EXE
2176	TESTSERVER.EXE.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"	TESTSERVER.EXE.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2996 set thread context of 2396	2996	msdcsc.exe	33

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1912-1-0x0000000000400000-0x000000000046B000-memory.dmp	upx
behavioral1/files/0x00090000000120d6-7.dat	upx
behavioral1/memory/2176-11-0x0000000000400000-0x00000000004E7000-memory.dmp	upx
behavioral1/memory/1912-9-0x0000000000400000-0x000000000046B000-memory.dmp	upx
behavioral1/memory/2176-26-0x0000000000400000-0x00000000004E7000-memory.dmp	upx
behavioral1/memory/2996-27-0x0000000000400000-0x00000000004E7000-memory.dmp	upx
behavioral1/memory/2396-29-0x0000000000400000-0x00000000004E7000-memory.dmp	upx
behavioral1/memory/2996-31-0x0000000000400000-0x00000000004E7000-memory.dmp	upx

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 6 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_0e1eb8cff971ae5cbd4dc988764e420f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TESTSERVER.EXE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
2072	PING.EXE
2720	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2072	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeSecurityPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeTakeOwnershipPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeLoadDriverPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeSystemProfilePrivilege	2176	TESTSERVER.EXE.EXE
Token: SeSystemtimePrivilege	2176	TESTSERVER.EXE.EXE
Token: SeProfSingleProcessPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeIncBasePriorityPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeCreatePagefilePrivilege	2176	TESTSERVER.EXE.EXE
Token: SeBackupPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeRestorePrivilege	2176	TESTSERVER.EXE.EXE
Token: SeShutdownPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeDebugPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeSystemEnvironmentPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeChangeNotifyPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeRemoteShutdownPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeUndockPrivilege	2176	TESTSERVER.EXE.EXE
Token: SeManageVolumePrivilege	2176	TESTSERVER.EXE.EXE
Token: SeImpersonatePrivilege	2176	TESTSERVER.EXE.EXE
Token: SeCreateGlobalPrivilege	2176	TESTSERVER.EXE.EXE
Token: 33	2176	TESTSERVER.EXE.EXE
Token: 34	2176	TESTSERVER.EXE.EXE
Token: 35	2176	TESTSERVER.EXE.EXE
Token: SeIncreaseQuotaPrivilege	2996	msdcsc.exe
Token: SeSecurityPrivilege	2996	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2996	msdcsc.exe
Token: SeLoadDriverPrivilege	2996	msdcsc.exe
Token: SeSystemProfilePrivilege	2996	msdcsc.exe
Token: SeSystemtimePrivilege	2996	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2996	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2996	msdcsc.exe
Token: SeCreatePagefilePrivilege	2996	msdcsc.exe
Token: SeBackupPrivilege	2996	msdcsc.exe
Token: SeRestorePrivilege	2996	msdcsc.exe
Token: SeShutdownPrivilege	2996	msdcsc.exe
Token: SeDebugPrivilege	2996	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2996	msdcsc.exe
Token: SeChangeNotifyPrivilege	2996	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2996	msdcsc.exe
Token: SeUndockPrivilege	2996	msdcsc.exe
Token: SeManageVolumePrivilege	2996	msdcsc.exe
Token: SeImpersonatePrivilege	2996	msdcsc.exe
Token: SeCreateGlobalPrivilege	2996	msdcsc.exe
Token: 33	2996	msdcsc.exe
Token: 34	2996	msdcsc.exe
Token: 35	2996	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2396	iexplore.exe
Token: SeSecurityPrivilege	2396	iexplore.exe
Token: SeTakeOwnershipPrivilege	2396	iexplore.exe
Token: SeLoadDriverPrivilege	2396	iexplore.exe
Token: SeSystemProfilePrivilege	2396	iexplore.exe
Token: SeSystemtimePrivilege	2396	iexplore.exe
Token: SeProfSingleProcessPrivilege	2396	iexplore.exe
Token: SeIncBasePriorityPrivilege	2396	iexplore.exe
Token: SeCreatePagefilePrivilege	2396	iexplore.exe
Token: SeBackupPrivilege	2396	iexplore.exe
Token: SeRestorePrivilege	2396	iexplore.exe
Token: SeShutdownPrivilege	2396	iexplore.exe
Token: SeDebugPrivilege	2396	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2396	iexplore.exe
Token: SeChangeNotifyPrivilege	2396	iexplore.exe
Token: SeRemoteShutdownPrivilege	2396	iexplore.exe
Token: SeUndockPrivilege	2396	iexplore.exe
Token: SeManageVolumePrivilege	2396	iexplore.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1912 wrote to memory of 2176	1912	JaffaCakes118_0e1eb8cff971ae5cbd4dc988764e420f.exe	28
PID 1912 wrote to memory of 2176	1912	JaffaCakes118_0e1eb8cff971ae5cbd4dc988764e420f.exe	28
PID 1912 wrote to memory of 2176	1912	JaffaCakes118_0e1eb8cff971ae5cbd4dc988764e420f.exe	28
PID 1912 wrote to memory of 2176	1912	JaffaCakes118_0e1eb8cff971ae5cbd4dc988764e420f.exe	28
PID 2176 wrote to memory of 2720	2176	TESTSERVER.EXE.EXE	29
PID 2176 wrote to memory of 2720	2176	TESTSERVER.EXE.EXE	29
PID 2176 wrote to memory of 2720	2176	TESTSERVER.EXE.EXE	29
PID 2176 wrote to memory of 2720	2176	TESTSERVER.EXE.EXE	29
PID 2176 wrote to memory of 2996	2176	TESTSERVER.EXE.EXE	31
PID 2176 wrote to memory of 2996	2176	TESTSERVER.EXE.EXE	31
PID 2176 wrote to memory of 2996	2176	TESTSERVER.EXE.EXE	31
PID 2176 wrote to memory of 2996	2176	TESTSERVER.EXE.EXE	31
PID 2720 wrote to memory of 2072	2720	cmd.exe	32
PID 2720 wrote to memory of 2072	2720	cmd.exe	32
PID 2720 wrote to memory of 2072	2720	cmd.exe	32
PID 2720 wrote to memory of 2072	2720	cmd.exe	32
PID 2996 wrote to memory of 2396	2996	msdcsc.exe	33
PID 2996 wrote to memory of 2396	2996	msdcsc.exe	33
PID 2996 wrote to memory of 2396	2996	msdcsc.exe	33
PID 2996 wrote to memory of 2396	2996	msdcsc.exe	33
PID 2996 wrote to memory of 2396	2996	msdcsc.exe	33
PID 2996 wrote to memory of 2396	2996	msdcsc.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e1eb8cff971ae5cbd4dc988764e420f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e1eb8cff971ae5cbd4dc988764e420f.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Users\Admin\AppData\Roaming\TESTSERVER.EXE.EXE
  "C:\Users\Admin\AppData\Roaming\TESTSERVER.EXE.EXE"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2176
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Roaming\TESTSERVER.EXE.EXE"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2720
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 4
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2072
- - 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:2996
  - - 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:2396

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

C:\Users\Admin\AppData\Roaming\TESTSERVER.EXE.EXE

Filesize
347KB

MD5
7d9197524392d377d5b3ba7fe8c0825b

SHA1
2ae09d49464229965b8b577651b74c2453078bdd

SHA256
868cec134c68c0d9199d4a08aa6a9a1c20cc525fb22c45a0c0958cec470bd46b

SHA512
d43227804dd1ee7574c80c9c25c3afe8572c3fb62ffc712eb5fbd93957b82d44d93527e9f23a9a27fe01284c8fc2a6cb3874cd78381bdc7dfa6bbe3699cb0e13

Download Submit
memory/1912-1-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/1912-9-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2176-11-0x0000000000400000-0x00000000004E7000-memory.dmp

Filesize
924KB

Download
memory/2176-12-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2176-24-0x00000000037C0000-0x00000000038A7000-memory.dmp

Filesize
924KB

Download
memory/2176-26-0x0000000000400000-0x00000000004E7000-memory.dmp

Filesize
924KB

Download
memory/2396-29-0x0000000000400000-0x00000000004E7000-memory.dmp

Filesize
924KB

Download
memory/2996-27-0x0000000000400000-0x00000000004E7000-memory.dmp

Filesize
924KB

Download
memory/2996-31-0x0000000000400000-0x00000000004E7000-memory.dmp

Filesize
924KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads