darkcomet | 0222e993e2a3e87c8fa307929beabe1adbb030741a39e18dd1566f00119020bb

Analysis

max time kernel
14s
max time network
17s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
11/02/2025, 11:30

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General

Target

JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe
Size

512KB
MD5

e5e2de0b54198927095257559951f3ea
SHA1

7e2ec354519ca6a919921af069bcab31f8b2dd8f
SHA256

0222e993e2a3e87c8fa307929beabe1adbb030741a39e18dd1566f00119020bb
SHA512

ead4c60b913d276d4d38ae4f7546993fa93c628896fcf03f2471d6b010df8ad36c1dc2e493632cbe964414f06f11dd7ae735abd85bdd1eab098412d0098b08a4
SSDEEP

12288:/iAZGnohx2PV9ZxmivPJwFBkhMKWoavG+npv3wF:D4noP2PVT20aKW7/p

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

moehome.dyndns.org:5110

Mutex

DC_MUTEX-TLZYZE5

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
H7/9yyUnQTfL
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"	win87.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
3032	attrib.exe
2988	attrib.exe

Executes dropped EXE 2 IoCs

pid	Process
2720	win87.exe
580	msdcsc.exe

Loads dropped DLL 4 IoCs

pid	Process
2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe
2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe
2720	win87.exe
2720	win87.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\runAPI79 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\runAPI57.exe\""	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	win87.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2720	2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe	30

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2720-20-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral1/memory/2720-18-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral1/memory/2720-16-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral1/memory/2720-13-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral1/memory/2720-22-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral1/memory/2720-12-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral1/memory/2720-24-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral1/memory/2720-23-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral1/memory/2720-40-0x0000000000400000-0x00000000004E5000-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 9 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	win87.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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e5e2de0b54198927095257559951f3ea.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	cmd.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
2868	PING.EXE
424	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2868	PING.EXE

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2720	win87.exe
Token: SeSecurityPrivilege	2720	win87.exe
Token: SeTakeOwnershipPrivilege	2720	win87.exe
Token: SeLoadDriverPrivilege	2720	win87.exe
Token: SeSystemProfilePrivilege	2720	win87.exe
Token: SeSystemtimePrivilege	2720	win87.exe
Token: SeProfSingleProcessPrivilege	2720	win87.exe
Token: SeIncBasePriorityPrivilege	2720	win87.exe
Token: SeCreatePagefilePrivilege	2720	win87.exe
Token: SeBackupPrivilege	2720	win87.exe
Token: SeRestorePrivilege	2720	win87.exe
Token: SeShutdownPrivilege	2720	win87.exe
Token: SeDebugPrivilege	2720	win87.exe
Token: SeSystemEnvironmentPrivilege	2720	win87.exe
Token: SeChangeNotifyPrivilege	2720	win87.exe
Token: SeRemoteShutdownPrivilege	2720	win87.exe
Token: SeUndockPrivilege	2720	win87.exe
Token: SeManageVolumePrivilege	2720	win87.exe
Token: SeImpersonatePrivilege	2720	win87.exe
Token: SeCreateGlobalPrivilege	2720	win87.exe
Token: 33	2720	win87.exe
Token: 34	2720	win87.exe
Token: 35	2720	win87.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2720	2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe	30
PID 2736 wrote to memory of 2720	2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe	30
PID 2736 wrote to memory of 2720	2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe	30
PID 2736 wrote to memory of 2720	2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe	30
PID 2736 wrote to memory of 2720	2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe	30
PID 2736 wrote to memory of 2720	2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe	30
PID 2736 wrote to memory of 2720	2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe	30
PID 2736 wrote to memory of 2720	2736	JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe	30
PID 2720 wrote to memory of 1452	2720	win87.exe	31
PID 2720 wrote to memory of 1452	2720	win87.exe	31
PID 2720 wrote to memory of 1452	2720	win87.exe	31
PID 2720 wrote to memory of 1452	2720	win87.exe	31
PID 2720 wrote to memory of 2912	2720	win87.exe	33
PID 2720 wrote to memory of 2912	2720	win87.exe	33
PID 2720 wrote to memory of 2912	2720	win87.exe	33
PID 2720 wrote to memory of 2912	2720	win87.exe	33
PID 2720 wrote to memory of 424	2720	win87.exe	35
PID 2720 wrote to memory of 424	2720	win87.exe	35
PID 2720 wrote to memory of 424	2720	win87.exe	35
PID 2720 wrote to memory of 424	2720	win87.exe	35
PID 1452 wrote to memory of 2988	1452	cmd.exe	37
PID 1452 wrote to memory of 2988	1452	cmd.exe	37
PID 1452 wrote to memory of 2988	1452	cmd.exe	37
PID 1452 wrote to memory of 2988	1452	cmd.exe	37
PID 424 wrote to memory of 2868	424	cmd.exe	38
PID 424 wrote to memory of 2868	424	cmd.exe	38
PID 424 wrote to memory of 2868	424	cmd.exe	38
PID 424 wrote to memory of 2868	424	cmd.exe	38
PID 2912 wrote to memory of 3032	2912	cmd.exe	39
PID 2912 wrote to memory of 3032	2912	cmd.exe	39
PID 2912 wrote to memory of 3032	2912	cmd.exe	39
PID 2912 wrote to memory of 3032	2912	cmd.exe	39
PID 2720 wrote to memory of 580	2720	win87.exe	40
PID 2720 wrote to memory of 580	2720	win87.exe	40
PID 2720 wrote to memory of 580	2720	win87.exe	40
PID 2720 wrote to memory of 580	2720	win87.exe	40

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
3032	attrib.exe
2988	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e5e2de0b54198927095257559951f3ea.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e5e2de0b54198927095257559951f3ea.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:2736
- C:\Users\Admin\AppData\Local\Temp\win87.exe
  C:\Users\Admin\AppData\Local\Temp\win87.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:2720
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\win87.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1452
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\win87.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2988
- - 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:2912
  - - 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:3032
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\win87.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:424
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 4
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2868
- - 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:580

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

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

\Users\Admin\AppData\Local\Temp\win87.exe

Filesize
4KB

MD5
5e5ecae8b08152c885904cde71c50dad

SHA1
727f24d102ab29be690c783ddc149b3a39430fb6

SHA256
b3550952a2474802ae5f2d2d7e75987ccd7ca23baa8ba015c3eaa6fd04b55541

SHA512
dd6287a8471aa575abbcf46300ac64a170c0cb19052d779c7bc0899149c6114a4e42520756dae1598e18458d94522d6c7701a7bc3a37067ac2a1616dbbf8e5ea

Download Submit
memory/2720-13-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2720-12-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2720-40-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2720-11-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2720-20-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2720-18-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2720-23-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2720-25-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2720-22-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2720-24-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2720-16-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2720-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-0-0x0000000074621000-0x0000000074622000-memory.dmp

Filesize
4KB

Download
memory/2736-21-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2736-2-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2736-1-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads