darkcomet | 0791d1be1634b976961b378918d11dca6262d1812ef9c449e8096c2cfb087f0e

Analysis

max time kernel
146s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-11-2024 01:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Size

744KB
MD5

9efca807cb8d8779e6e3805f23163150
SHA1

c17164df6305b3a73b049f955414d0422a3cbc8b
SHA256

0791d1be1634b976961b378918d11dca6262d1812ef9c449e8096c2cfb087f0e
SHA512

5318d857e165a5b8005d72e04bcc6af2de4e58bf6369a9e9df1ab5858f475ef96b6bb26a9b72b3387517d119341b666ea84cbe7ffdaa119d85b341310c403911
SSDEEP

12288:DeIEQIo9eetAPGVa/PmRiCw36khpDWnfYqIh4HzrXG8et7BSYFuDZ2xbUHaYa34b:DemIo9eetASa/PNokrDWfFsaoNFuDool

Score

10^/10

darkcomet 123 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

123

31.193.15.146:4444

Mutex

DC_MUTEX-VXUMNCN

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
oVyAbwnA4ehh
install
true
offline_keylogger
true
persistence
false
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

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

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"	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

msdcsc.exemsdcsc.exe

pid	Process
2732	msdcsc.exe
2236	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

pid	Process
824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 3060 set thread context of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 2732 set thread context of 2236	2732	msdcsc.exe	33

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/3060-0-0x0000000000400000-0x00000000004D1000-memory.dmp	upx
behavioral1/memory/3060-22-0x0000000000400000-0x00000000004D1000-memory.dmp	upx
behavioral1/files/0x0009000000016d58-29.dat	upx
behavioral1/memory/2732-39-0x0000000000400000-0x00000000004D1000-memory.dmp	upx
behavioral1/memory/2732-64-0x0000000000400000-0x00000000004D1000-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 4 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

Processes:

msdcsc.exemsdcsc.exe9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeSecurityPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeSystemtimePrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeBackupPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeRestorePrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeShutdownPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeDebugPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeUndockPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeManageVolumePrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeImpersonatePrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: 33	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: 34	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: 35	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2236	msdcsc.exe
Token: SeSecurityPrivilege	2236	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2236	msdcsc.exe
Token: SeLoadDriverPrivilege	2236	msdcsc.exe
Token: SeSystemProfilePrivilege	2236	msdcsc.exe
Token: SeSystemtimePrivilege	2236	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2236	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2236	msdcsc.exe
Token: SeCreatePagefilePrivilege	2236	msdcsc.exe
Token: SeBackupPrivilege	2236	msdcsc.exe
Token: SeRestorePrivilege	2236	msdcsc.exe
Token: SeShutdownPrivilege	2236	msdcsc.exe
Token: SeDebugPrivilege	2236	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2236	msdcsc.exe
Token: SeChangeNotifyPrivilege	2236	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2236	msdcsc.exe
Token: SeUndockPrivilege	2236	msdcsc.exe
Token: SeManageVolumePrivilege	2236	msdcsc.exe
Token: SeImpersonatePrivilege	2236	msdcsc.exe
Token: SeCreateGlobalPrivilege	2236	msdcsc.exe
Token: 33	2236	msdcsc.exe
Token: 34	2236	msdcsc.exe
Token: 35	2236	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exemsdcsc.exemsdcsc.exe

pid	Process
3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
2732	msdcsc.exe
2236	msdcsc.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 3060 wrote to memory of 824	3060	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	31
PID 824 wrote to memory of 2732	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	32
PID 824 wrote to memory of 2732	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	32
PID 824 wrote to memory of 2732	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	32
PID 824 wrote to memory of 2732	824	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	32
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33
PID 2732 wrote to memory of 2236	2732	msdcsc.exe	33

C:\Users\Admin\AppData\Local\Temp\9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe"
  2⤵
  - 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:824
- - 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 SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2732
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2236

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
744KB

MD5
9efca807cb8d8779e6e3805f23163150

SHA1
c17164df6305b3a73b049f955414d0422a3cbc8b

SHA256
0791d1be1634b976961b378918d11dca6262d1812ef9c449e8096c2cfb087f0e

SHA512
5318d857e165a5b8005d72e04bcc6af2de4e58bf6369a9e9df1ab5858f475ef96b6bb26a9b72b3387517d119341b666ea84cbe7ffdaa119d85b341310c403911

Download Submit
memory/824-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-19-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-5-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-3-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-24-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-20-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-38-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-13-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-7-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-9-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-36-0x00000000004C0000-0x000000000059F000-memory.dmp

Filesize
892KB

Download
memory/824-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2236-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2236-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2236-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2236-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2236-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2236-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2236-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2732-39-0x0000000000400000-0x00000000004D1000-memory.dmp

Filesize
836KB

Download
memory/2732-64-0x0000000000400000-0x00000000004D1000-memory.dmp

Filesize
836KB

Download
memory/3060-22-0x0000000000400000-0x00000000004D1000-memory.dmp

Filesize
836KB

Download
memory/3060-0-0x0000000000400000-0x00000000004D1000-memory.dmp

Filesize
836KB

Download