darkcomet | 29435b65a13bdb90de14cb350d8b1738c228821ea42cd19f9b2fa6f735cec28b

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-12-2024 12:41

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General

Target

d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe
Size

881KB
MD5

d9ab6001ab538cf499d2617b8440e3ed
SHA1

f211dca5c14dfe1652f35ebbdb6e14eb52a4da7f
SHA256

29435b65a13bdb90de14cb350d8b1738c228821ea42cd19f9b2fa6f735cec28b
SHA512

d0343ea218acb60bff2ab6bb9d081056a5f03c9c54e746e34dcdd038d6c58bcf817cf69fb96fc4d15d0002589ff4b5161e7b35a723c9a132026a228ac311927f
SSDEEP

24576:5RQkTf4do2SmLV/pYiENV3a7dnE6/ZG5wCOPe:gkTgrVJpxENFa7NE80OCOPe

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:\\Windows\\system32\\Windupdt\\winupdate.exe"	vbc.exe

Executes dropped EXE 1 IoCs

pid	Process
2708	winupdate.exe

Loads dropped DLL 1 IoCs

pid	Process
2796	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\system32\\Windupdt\\winupdate.exe"	vbc.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Windupdt\winupdate.exe	vbc.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\winupdate.exe	vbc.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1768 set thread context of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31

System Location Discovery: System Language Discovery 1 TTPs 5 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	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.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
2648	cmd.exe
2656	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2656	PING.EXE

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2796	vbc.exe
Token: SeSecurityPrivilege	2796	vbc.exe
Token: SeTakeOwnershipPrivilege	2796	vbc.exe
Token: SeLoadDriverPrivilege	2796	vbc.exe
Token: SeSystemProfilePrivilege	2796	vbc.exe
Token: SeSystemtimePrivilege	2796	vbc.exe
Token: SeProfSingleProcessPrivilege	2796	vbc.exe
Token: SeIncBasePriorityPrivilege	2796	vbc.exe
Token: SeCreatePagefilePrivilege	2796	vbc.exe
Token: SeBackupPrivilege	2796	vbc.exe
Token: SeRestorePrivilege	2796	vbc.exe
Token: SeShutdownPrivilege	2796	vbc.exe
Token: SeDebugPrivilege	2796	vbc.exe
Token: SeSystemEnvironmentPrivilege	2796	vbc.exe
Token: SeChangeNotifyPrivilege	2796	vbc.exe
Token: SeRemoteShutdownPrivilege	2796	vbc.exe
Token: SeUndockPrivilege	2796	vbc.exe
Token: SeManageVolumePrivilege	2796	vbc.exe
Token: SeImpersonatePrivilege	2796	vbc.exe
Token: SeCreateGlobalPrivilege	2796	vbc.exe
Token: 33	2796	vbc.exe
Token: 34	2796	vbc.exe
Token: 35	2796	vbc.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 1768 wrote to memory of 2796	1768	d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe	31
PID 2796 wrote to memory of 2708	2796	vbc.exe	32
PID 2796 wrote to memory of 2708	2796	vbc.exe	32
PID 2796 wrote to memory of 2708	2796	vbc.exe	32
PID 2796 wrote to memory of 2708	2796	vbc.exe	32
PID 2796 wrote to memory of 2708	2796	vbc.exe	32
PID 2796 wrote to memory of 2708	2796	vbc.exe	32
PID 2796 wrote to memory of 2708	2796	vbc.exe	32
PID 2796 wrote to memory of 2648	2796	vbc.exe	33
PID 2796 wrote to memory of 2648	2796	vbc.exe	33
PID 2796 wrote to memory of 2648	2796	vbc.exe	33
PID 2796 wrote to memory of 2648	2796	vbc.exe	33
PID 2648 wrote to memory of 2656	2648	cmd.exe	36
PID 2648 wrote to memory of 2656	2648	cmd.exe	36
PID 2648 wrote to memory of 2656	2648	cmd.exe	36
PID 2648 wrote to memory of 2656	2648	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d9ab6001ab538cf499d2617b8440e3ed_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - 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:2796
- - C:\Windows\SysWOW64\Windupdt\winupdate.exe
    "C:\Windows\system32\Windupdt\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2708
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2648
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 5
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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 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

\Windows\SysWOW64\Windupdt\winupdate.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/1768-68-0x0000000076FD0000-0x00000000770E0000-memory.dmp

Filesize
1.1MB

Download
memory/1768-16-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-25-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-12-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-18-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-33-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-22-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-43-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-42-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-41-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-40-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-39-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-38-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-37-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-36-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-35-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-34-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-32-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-31-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-30-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-29-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-46-0x0000000076FD0000-0x00000000770E0000-memory.dmp

Filesize
1.1MB

Download
memory/1768-28-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-27-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-26-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-0-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-11-0x0000000076FD0000-0x00000000770E0000-memory.dmp

Filesize
1.1MB

Download
memory/1768-24-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-10-0x0000000076FD0000-0x00000000770E0000-memory.dmp

Filesize
1.1MB

Download
memory/1768-9-0x0000000076FE4000-0x0000000076FE5000-memory.dmp

Filesize
4KB

Download
memory/1768-13-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-14-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-15-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-23-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-17-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-19-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-20-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/1768-21-0x00000000007F0000-0x00000000008BC000-memory.dmp

Filesize
816KB

Download
memory/2796-53-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-65-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-51-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-63-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-49-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-57-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-61-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-47-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-55-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-59-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-66-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-67-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2796-70-0x0000000076FD0000-0x00000000770E0000-memory.dmp

Filesize
1.1MB

Download
memory/2796-69-0x0000000076FD0000-0x00000000770E0000-memory.dmp

Filesize
1.1MB

Download
memory/2796-80-0x0000000076FD0000-0x00000000770E0000-memory.dmp

Filesize
1.1MB

Download
memory/2796-78-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads