darkcomet | 2e2cc7ae02c04034acfe6380e82dac009a9bed80969e2a684181ecaf5a9e2a1b

General

Target

JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe
Size

956KB
MD5

572b5516b048049e2a3b0027ea4db7ef
SHA1

70fddceb7e2385a334826f374e954520f2209de7
SHA256

2e2cc7ae02c04034acfe6380e82dac009a9bed80969e2a684181ecaf5a9e2a1b
SHA512

9b9df905e9e9c592cc81d421707feede20596f786e92bc8141bdd39619b53239d7375b4b325002d998a943f1f80a581616ef84b13cb27b1975fd391522350759
SSDEEP

24576:G5FMt36c7nSgMit65Eq/318GpGTv/JZl6Ezp:GFcOXit6SmjkF64

Score

10^/10

darkcomet discovery 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"	win32.exe

Executes dropped EXE 2 IoCs

pid	Process
1980	win32.exe
2612	msdcsc.exe

Loads dropped DLL 4 IoCs

pid	Process
1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe
1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe
1980	win32.exe
1980	win32.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\runAPI82 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\runAPI57.exe\""	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	win32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1504 set thread context of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31

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 3 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_572b5516b048049e2a3b0027ea4db7ef.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	win32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1980	win32.exe
Token: SeSecurityPrivilege	1980	win32.exe
Token: SeTakeOwnershipPrivilege	1980	win32.exe
Token: SeLoadDriverPrivilege	1980	win32.exe
Token: SeSystemProfilePrivilege	1980	win32.exe
Token: SeSystemtimePrivilege	1980	win32.exe
Token: SeProfSingleProcessPrivilege	1980	win32.exe
Token: SeIncBasePriorityPrivilege	1980	win32.exe
Token: SeCreatePagefilePrivilege	1980	win32.exe
Token: SeBackupPrivilege	1980	win32.exe
Token: SeRestorePrivilege	1980	win32.exe
Token: SeShutdownPrivilege	1980	win32.exe
Token: SeDebugPrivilege	1980	win32.exe
Token: SeSystemEnvironmentPrivilege	1980	win32.exe
Token: SeChangeNotifyPrivilege	1980	win32.exe
Token: SeRemoteShutdownPrivilege	1980	win32.exe
Token: SeUndockPrivilege	1980	win32.exe
Token: SeManageVolumePrivilege	1980	win32.exe
Token: SeImpersonatePrivilege	1980	win32.exe
Token: SeCreateGlobalPrivilege	1980	win32.exe
Token: 33	1980	win32.exe
Token: 34	1980	win32.exe
Token: 35	1980	win32.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1504 wrote to memory of 1980	1504	JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe	31
PID 1980 wrote to memory of 2612	1980	win32.exe	32
PID 1980 wrote to memory of 2612	1980	win32.exe	32
PID 1980 wrote to memory of 2612	1980	win32.exe	32
PID 1980 wrote to memory of 2612	1980	win32.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_572b5516b048049e2a3b0027ea4db7ef.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1504
- C:\Users\Admin\AppData\Local\Temp\win32.exe
  C:\Users\Admin\AppData\Local\Temp\win32.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:1980
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\win32.exe

Filesize
4KB

MD5
5e5ecae8b08152c885904cde71c50dad

SHA1
727f24d102ab29be690c783ddc149b3a39430fb6

SHA256
b3550952a2474802ae5f2d2d7e75987ccd7ca23baa8ba015c3eaa6fd04b55541

SHA512
dd6287a8471aa575abbcf46300ac64a170c0cb19052d779c7bc0899149c6114a4e42520756dae1598e18458d94522d6c7701a7bc3a37067ac2a1616dbbf8e5ea

Download Submit
memory/1504-0-0x0000000074731000-0x0000000074732000-memory.dmp

Filesize
4KB

Download
memory/1504-1-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download
memory/1504-2-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download
memory/1504-31-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download
memory/1980-12-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-14-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-22-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-20-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-30-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-18-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-16-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-28-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-32-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-33-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-10-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-11-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-26-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1980-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1980-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads