darkcomet | e5e69a6982bda014dc72e4f790a2548f6f9f171bd35233c1665447cfcb96b288

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
29/03/2025, 20:26

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General

Target

JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe
Size

1.1MB
MD5

9805732917b4f66d8aaa64f4a90f352d
SHA1

c040a489a44ba1fe1d20ad30033b190703983241
SHA256

e5e69a6982bda014dc72e4f790a2548f6f9f171bd35233c1665447cfcb96b288
SHA512

c474a2826ce77d21116fa86b9211bfed256379ff01ffcc7b33f0645fe618f08ccc7bb3ad93d44cf8bd7c871b948deb3fc948777c48549045e1b76d4011c63643
SSDEEP

24576:7FE//Tct4bOsjItd3vCveCXERUAQJGAuKZLjvBWJVaTE:RSVjIr3vnCXERUZJbuKhjvB2aTE

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

vertexking.no-ip.org:999

Mutex

DC_MUTEX-LQMAH1E

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
5TwUP1XxSqk2
install
true
offline_keylogger
true
persistence
false
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:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	uncrypted.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2556	attrib.exe

Executes dropped EXE 2 IoCs

pid	Process
2312	uncrypted.exe
2908	msdcsc.exe

Loads dropped DLL 7 IoCs

pid	Process
2600	JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe
2600	JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe
2600	JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe
2600	JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe
2600	JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe
2312	uncrypted.exe
2312	uncrypted.exe

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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	uncrypted.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2600-26-0x0000000000400000-0x00000000004DF000-memory.dmp	autoit_exe

Drops file in System32 directory 3 IoCs

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

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2600-0-0x0000000000400000-0x00000000004DF000-memory.dmp	upx
behavioral1/memory/2600-26-0x0000000000400000-0x00000000004DF000-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 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	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uncrypted.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1112	explorer.exe
2908	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 58 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2312	uncrypted.exe
Token: SeSecurityPrivilege	2312	uncrypted.exe
Token: SeTakeOwnershipPrivilege	2312	uncrypted.exe
Token: SeLoadDriverPrivilege	2312	uncrypted.exe
Token: SeSystemProfilePrivilege	2312	uncrypted.exe
Token: SeSystemtimePrivilege	2312	uncrypted.exe
Token: SeProfSingleProcessPrivilege	2312	uncrypted.exe
Token: SeIncBasePriorityPrivilege	2312	uncrypted.exe
Token: SeCreatePagefilePrivilege	2312	uncrypted.exe
Token: SeBackupPrivilege	2312	uncrypted.exe
Token: SeRestorePrivilege	2312	uncrypted.exe
Token: SeShutdownPrivilege	2312	uncrypted.exe
Token: SeDebugPrivilege	2312	uncrypted.exe
Token: SeSystemEnvironmentPrivilege	2312	uncrypted.exe
Token: SeChangeNotifyPrivilege	2312	uncrypted.exe
Token: SeRemoteShutdownPrivilege	2312	uncrypted.exe
Token: SeUndockPrivilege	2312	uncrypted.exe
Token: SeManageVolumePrivilege	2312	uncrypted.exe
Token: SeImpersonatePrivilege	2312	uncrypted.exe
Token: SeCreateGlobalPrivilege	2312	uncrypted.exe
Token: 33	2312	uncrypted.exe
Token: 34	2312	uncrypted.exe
Token: 35	2312	uncrypted.exe
Token: SeIncreaseQuotaPrivilege	2908	msdcsc.exe
Token: SeSecurityPrivilege	2908	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2908	msdcsc.exe
Token: SeLoadDriverPrivilege	2908	msdcsc.exe
Token: SeSystemProfilePrivilege	2908	msdcsc.exe
Token: SeSystemtimePrivilege	2908	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2908	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2908	msdcsc.exe
Token: SeCreatePagefilePrivilege	2908	msdcsc.exe
Token: SeBackupPrivilege	2908	msdcsc.exe
Token: SeRestorePrivilege	2908	msdcsc.exe
Token: SeShutdownPrivilege	2908	msdcsc.exe
Token: SeDebugPrivilege	2908	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2908	msdcsc.exe
Token: SeChangeNotifyPrivilege	2908	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2908	msdcsc.exe
Token: SeUndockPrivilege	2908	msdcsc.exe
Token: SeManageVolumePrivilege	2908	msdcsc.exe
Token: SeImpersonatePrivilege	2908	msdcsc.exe
Token: SeCreateGlobalPrivilege	2908	msdcsc.exe
Token: 33	2908	msdcsc.exe
Token: 34	2908	msdcsc.exe
Token: 35	2908	msdcsc.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe
Token: SeShutdownPrivilege	1112	explorer.exe

Suspicious use of FindShellTrayWindow 29 IoCs

pid	Process
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe

Suspicious use of SendNotifyMessage 22 IoCs

pid	Process
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe
1112	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2908	msdcsc.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 2312	2600	JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe	30
PID 2600 wrote to memory of 2312	2600	JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe	30
PID 2600 wrote to memory of 2312	2600	JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe	30
PID 2600 wrote to memory of 2312	2600	JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe	30
PID 2312 wrote to memory of 2832	2312	uncrypted.exe	31
PID 2312 wrote to memory of 2832	2312	uncrypted.exe	31
PID 2312 wrote to memory of 2832	2312	uncrypted.exe	31
PID 2312 wrote to memory of 2832	2312	uncrypted.exe	31
PID 2312 wrote to memory of 2908	2312	uncrypted.exe	33
PID 2312 wrote to memory of 2908	2312	uncrypted.exe	33
PID 2312 wrote to memory of 2908	2312	uncrypted.exe	33
PID 2312 wrote to memory of 2908	2312	uncrypted.exe	33
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2908 wrote to memory of 2944	2908	msdcsc.exe	34
PID 2832 wrote to memory of 2556	2832	cmd.exe	35
PID 2832 wrote to memory of 2556	2832	cmd.exe	35
PID 2832 wrote to memory of 2556	2832	cmd.exe	35
PID 2832 wrote to memory of 2556	2832	cmd.exe	35

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2556	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9805732917b4f66d8aaa64f4a90f352d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Users\Admin\AppData\Local\Temp\uncrypted.exe
  "C:\Users\Admin\AppData\Local\Temp\uncrypted.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - 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:2312
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2832
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2556
- - C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
    "C:\Windows\system32\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2908
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:2944

C:\Windows\explorer.exe
explorer.exe
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

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

Query Registry

T1012

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\crypt

Filesize
673KB

MD5
3fe0ca1449993f6a22ad86a0cdfe4051

SHA1
259dda1ceb354c458e08c576d5a686de443705c7

SHA256
9dac566b2fb9b13843854efbb662642c8427e698dbc2d2ded4bbb3b7089bcf09

SHA512
798a3e1123204ba17e66f577522f1dd877b533c8a6ee997c0f21a1d47633c0e5ad1fffc6be78056a195ab904bc6f25cbd47973d8b521d123c19a2e3b97fe3978

Download Submit
\Users\Admin\AppData\Local\Temp\uncrypted.exe

Filesize
673KB

MD5
d2922511968925268f1f47351db07054

SHA1
96ca2c1acdcc624e3efcf95b39779afccf560fe1

SHA256
c0effd1232400ed858c00c79df95d64175fe4ceea6f0acbe25b6a7285cb5c7e8

SHA512
64e76e5322ea7170330ae6e025d6c44c4375c25b71e76fe2936f184e2419eeda1cac6b8edffc3252e4bfa3c82fbc2d4410b2044fd0dab525a65adcea7b43da22

Download Submit
memory/1112-96-0x0000000002960000-0x0000000002970000-memory.dmp

Filesize
64KB

Download
memory/2312-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2312-27-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2600-26-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/2600-0-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/2908-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-89-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-97-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-92-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-93-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2908-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2944-40-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2944-78-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads