darkcomet | 94dd31b986c14745370b9d6af9919942e00a98013d3fa1d5d6e857ff8f6d45ec

Analysis

max time kernel
149s
max time network
140s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 17:50

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General

Target

ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Size

772KB
MD5

ddfa1700270ddb294e420fa5c2f91315
SHA1

5031c370f66fffeb1ff40b3c68ac371063450cd0
SHA256

94dd31b986c14745370b9d6af9919942e00a98013d3fa1d5d6e857ff8f6d45ec
SHA512

e946bca92df1f700570e9e9c978397a6ad027e65cc6e588f8a1592f235d8b1843992735a33be157f9d71dbacbf44383281040f9ba8683115ef039f31b9660617
SSDEEP

12288:j9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hSyC/:tZ1xuVVjfFoynPaVBUR8f+kN10EBK/

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

37.17.158.15:1604

Mutex

DC_MUTEX-C9QWB5Q

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Gv32zCQxtjSP
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2108	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2368	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe

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	DllHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2368	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeSecurityPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeBackupPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeRestorePrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeShutdownPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeDebugPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeUndockPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: 33	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: 34	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: 35	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2368	msdcsc.exe
Token: SeSecurityPrivilege	2368	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2368	msdcsc.exe
Token: SeLoadDriverPrivilege	2368	msdcsc.exe
Token: SeSystemProfilePrivilege	2368	msdcsc.exe
Token: SeSystemtimePrivilege	2368	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2368	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2368	msdcsc.exe
Token: SeCreatePagefilePrivilege	2368	msdcsc.exe
Token: SeBackupPrivilege	2368	msdcsc.exe
Token: SeRestorePrivilege	2368	msdcsc.exe
Token: SeShutdownPrivilege	2368	msdcsc.exe
Token: SeDebugPrivilege	2368	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2368	msdcsc.exe
Token: SeChangeNotifyPrivilege	2368	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2368	msdcsc.exe
Token: SeUndockPrivilege	2368	msdcsc.exe
Token: SeManageVolumePrivilege	2368	msdcsc.exe
Token: SeImpersonatePrivilege	2368	msdcsc.exe
Token: SeCreateGlobalPrivilege	2368	msdcsc.exe
Token: 33	2368	msdcsc.exe
Token: 34	2368	msdcsc.exe
Token: 35	2368	msdcsc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2344	DllHost.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2368	msdcsc.exe
2344	DllHost.exe
2344	DllHost.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 1260	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe	30
PID 1680 wrote to memory of 1260	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe	30
PID 1680 wrote to memory of 1260	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe	30
PID 1680 wrote to memory of 1260	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe	30
PID 1260 wrote to memory of 2108	1260	cmd.exe	32
PID 1260 wrote to memory of 2108	1260	cmd.exe	32
PID 1260 wrote to memory of 2108	1260	cmd.exe	32
PID 1260 wrote to memory of 2108	1260	cmd.exe	32
PID 1680 wrote to memory of 2368	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe	34
PID 1680 wrote to memory of 2368	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe	34
PID 1680 wrote to memory of 2368	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe	34
PID 1680 wrote to memory of 2368	1680	ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe	34
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35
PID 2368 wrote to memory of 2896	2368	msdcsc.exe	35

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2108	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1260
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\ddfa1700270ddb294e420fa5c2f91315_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2108
- C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
  "C:\Windows\system32\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2368
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2896

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2344

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

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\484579_456253984408662_1630238409_N.JPG

Filesize
15KB

MD5
b6be09bcfde29f88c634dfcc08a307ee

SHA1
842c3ab80c9a8b34d9f61b4cc77b90be395d4672

SHA256
46413c71c7faa7b0dba8ced39a9ebdf60dbec30e55b75b159bd8f49182cc8864

SHA512
39e16be4fe80ba5edc14aebc02a72d82ecd0e4afc7657acfa5dd104d39352035c94fb6757f58eb9f9aa5b8067d51dad682b4a4a8cea8fb8ac3f5f9dd775c0c90

Download Submit
\Windows\SysWOW64\MSDCSC\msdcsc.exe

Filesize
772KB

MD5
ddfa1700270ddb294e420fa5c2f91315

SHA1
5031c370f66fffeb1ff40b3c68ac371063450cd0

SHA256
94dd31b986c14745370b9d6af9919942e00a98013d3fa1d5d6e857ff8f6d45ec

SHA512
e946bca92df1f700570e9e9c978397a6ad027e65cc6e588f8a1592f235d8b1843992735a33be157f9d71dbacbf44383281040f9ba8683115ef039f31b9660617

Download Submit
memory/1680-0-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1680-4-0x0000000003A30000-0x0000000003A32000-memory.dmp

Filesize
8KB

Download
memory/1680-55-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/2344-5-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download
memory/2368-56-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/2368-58-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/2368-60-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/2896-16-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2896-54-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads