darkcomet | c661883ef7c738f2b9a2928abd0c458ffe22c23f88c8b03dd5d8b336df03e081

Analysis

max time kernel
149s
max time network
138s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/02/2025, 23:19

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General

Target

JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Size

760KB
MD5

231ac82d651b591edd3b5939b7d9029a
SHA1

dfa6fd19622e1902366062e00a9d2f742a874372
SHA256

c661883ef7c738f2b9a2928abd0c458ffe22c23f88c8b03dd5d8b336df03e081
SHA512

6dd4afd03ba250cbfe8a75011ee56b5b3a99c81d98033c448f2c84d9a21d16953f100d2c887ea7b6ac55210086dd8f5455e496344e62b921906549afe0f2e2e7
SSDEEP

12288:I3OpvNW4a76S/Ddon/m09bbYlIaaMcE2YGhq3vo1RnfAvIESJgoE26yc/RcbHhwS:+OA4aWNn/m09fKIaaBEtWq3A1Ov8JgbI

Score

10^/10

darkcomet one discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

One

77.250.252.212:1766

Mutex

DC_MUTEX-SQLU032

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
UVBLMQUqQBU2
install
true
offline_keylogger
true
persistence
true
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_231ac82d651b591edd3b5939b7d9029a.exe

Executes dropped EXE 1 IoCs

pid	Process
2072	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\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

System Location Discovery: System Language Discovery 1 TTPs 2 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	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeSecurityPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeTakeOwnershipPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeLoadDriverPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeSystemProfilePrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeSystemtimePrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeProfSingleProcessPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeIncBasePriorityPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeCreatePagefilePrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeBackupPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeRestorePrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeShutdownPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeDebugPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeSystemEnvironmentPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeChangeNotifyPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeRemoteShutdownPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeUndockPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeManageVolumePrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeImpersonatePrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeCreateGlobalPrivilege	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: 33	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: 34	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: 35	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
Token: SeIncreaseQuotaPrivilege	2072	msdcsc.exe
Token: SeSecurityPrivilege	2072	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2072	msdcsc.exe
Token: SeLoadDriverPrivilege	2072	msdcsc.exe
Token: SeSystemProfilePrivilege	2072	msdcsc.exe
Token: SeSystemtimePrivilege	2072	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2072	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2072	msdcsc.exe
Token: SeCreatePagefilePrivilege	2072	msdcsc.exe
Token: SeBackupPrivilege	2072	msdcsc.exe
Token: SeRestorePrivilege	2072	msdcsc.exe
Token: SeShutdownPrivilege	2072	msdcsc.exe
Token: SeDebugPrivilege	2072	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2072	msdcsc.exe
Token: SeChangeNotifyPrivilege	2072	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2072	msdcsc.exe
Token: SeUndockPrivilege	2072	msdcsc.exe
Token: SeManageVolumePrivilege	2072	msdcsc.exe
Token: SeImpersonatePrivilege	2072	msdcsc.exe
Token: SeCreateGlobalPrivilege	2072	msdcsc.exe
Token: 33	2072	msdcsc.exe
Token: 34	2072	msdcsc.exe
Token: 35	2072	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2072	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2072	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe	30
PID 2496 wrote to memory of 2072	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe	30
PID 2496 wrote to memory of 2072	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe	30
PID 2496 wrote to memory of 2072	2496	JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_231ac82d651b591edd3b5939b7d9029a.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:2496
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2072

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

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

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

Filesize
760KB

MD5
231ac82d651b591edd3b5939b7d9029a

SHA1
dfa6fd19622e1902366062e00a9d2f742a874372

SHA256
c661883ef7c738f2b9a2928abd0c458ffe22c23f88c8b03dd5d8b336df03e081

SHA512
6dd4afd03ba250cbfe8a75011ee56b5b3a99c81d98033c448f2c84d9a21d16953f100d2c887ea7b6ac55210086dd8f5455e496344e62b921906549afe0f2e2e7

Download Submit
memory/2072-12-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/2072-14-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/2496-0-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2496-11-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads