darkcomet | 706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277d

Analysis

max time kernel
111s
max time network
116s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 12:02

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General

Target

706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Size

304KB
MD5

342bda490672d77622a6917ccecdab20
SHA1

3bb653874418bb2a3666f2ca39710d97b1bfa871
SHA256

706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277d
SHA512

a5d0ab425b723165072ebcfbd65cd05e464a83774dd24a30a10a10654d068006bd06dfc92f1b88010ebd05c4f629a43b18b5331669a1ee9fc8d5f66572dfbe7b
SSDEEP

6144:X2T/3If9vSuNT6woPu7pWil15P0Wrep5h05X/CpNWpyJoNCzh:XQ3ICaEil16Cs5u1974V

Score

10^/10

darkcomet guest16_min discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

2.235.168.213:81

Mutex

DCMIN_MUTEX-JSD8YH2

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
7fsLUSe9cMso
install
true
offline_keylogger
true
persistence
false
reg_key
210978

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\\DCSCMIN\\IMDCSC.exe"	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe

Executes dropped EXE 2 IoCs

pid	Process
2984	IMDCSC.exe
2700	IMDCSC.exe

Loads dropped DLL 3 IoCs

pid	Process
3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
2984	IMDCSC.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\210978 = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3040 set thread context of 3044	3040	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	30
PID 2984 set thread context of 2700	2984	IMDCSC.exe	32

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3044-2-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/3044-8-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/3044-7-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/3044-6-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/3044-3-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/3044-11-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/3044-10-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/3044-9-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2700-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2700-37-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/3044-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2700-41-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2700-45-0x0000000000400000-0x00000000004B7000-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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeSecurityPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeTakeOwnershipPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeLoadDriverPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeSystemProfilePrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeSystemtimePrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeProfSingleProcessPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeIncBasePriorityPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeCreatePagefilePrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeBackupPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeRestorePrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeShutdownPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeDebugPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeSystemEnvironmentPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeChangeNotifyPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeRemoteShutdownPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeUndockPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeManageVolumePrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeImpersonatePrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeCreateGlobalPrivilege	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: 33	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: 34	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: 35	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
Token: SeIncreaseQuotaPrivilege	2700	IMDCSC.exe
Token: SeSecurityPrivilege	2700	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	2700	IMDCSC.exe
Token: SeLoadDriverPrivilege	2700	IMDCSC.exe
Token: SeSystemProfilePrivilege	2700	IMDCSC.exe
Token: SeSystemtimePrivilege	2700	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	2700	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	2700	IMDCSC.exe
Token: SeCreatePagefilePrivilege	2700	IMDCSC.exe
Token: SeBackupPrivilege	2700	IMDCSC.exe
Token: SeRestorePrivilege	2700	IMDCSC.exe
Token: SeShutdownPrivilege	2700	IMDCSC.exe
Token: SeDebugPrivilege	2700	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	2700	IMDCSC.exe
Token: SeChangeNotifyPrivilege	2700	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	2700	IMDCSC.exe
Token: SeUndockPrivilege	2700	IMDCSC.exe
Token: SeManageVolumePrivilege	2700	IMDCSC.exe
Token: SeImpersonatePrivilege	2700	IMDCSC.exe
Token: SeCreateGlobalPrivilege	2700	IMDCSC.exe
Token: 33	2700	IMDCSC.exe
Token: 34	2700	IMDCSC.exe
Token: 35	2700	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2700	IMDCSC.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 3044	3040	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	30
PID 3040 wrote to memory of 3044	3040	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	30
PID 3040 wrote to memory of 3044	3040	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	30
PID 3040 wrote to memory of 3044	3040	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	30
PID 3040 wrote to memory of 3044	3040	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	30
PID 3040 wrote to memory of 3044	3040	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	30
PID 3040 wrote to memory of 3044	3040	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	30
PID 3040 wrote to memory of 3044	3040	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	30
PID 3044 wrote to memory of 2984	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	31
PID 3044 wrote to memory of 2984	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	31
PID 3044 wrote to memory of 2984	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	31
PID 3044 wrote to memory of 2984	3044	706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe	31
PID 2984 wrote to memory of 2700	2984	IMDCSC.exe	32
PID 2984 wrote to memory of 2700	2984	IMDCSC.exe	32
PID 2984 wrote to memory of 2700	2984	IMDCSC.exe	32
PID 2984 wrote to memory of 2700	2984	IMDCSC.exe	32
PID 2984 wrote to memory of 2700	2984	IMDCSC.exe	32
PID 2984 wrote to memory of 2700	2984	IMDCSC.exe	32
PID 2984 wrote to memory of 2700	2984	IMDCSC.exe	32
PID 2984 wrote to memory of 2700	2984	IMDCSC.exe	32

C:\Users\Admin\AppData\Local\Temp\706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
"C:\Users\Admin\AppData\Local\Temp\706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Users\Admin\AppData\Local\Temp\706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.exe
  "C:\Users\Admin\AppData\Local\Temp\706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277dN.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:3044
- - C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
    "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2984
  - - C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
      "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2700

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

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Downloads

C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

Filesize
304KB

MD5
342bda490672d77622a6917ccecdab20

SHA1
3bb653874418bb2a3666f2ca39710d97b1bfa871

SHA256
706846d99683044c8f5fbea2897c007a55c4cbdba64f76a02bfe80ce9fde277d

SHA512
a5d0ab425b723165072ebcfbd65cd05e464a83774dd24a30a10a10654d068006bd06dfc92f1b88010ebd05c4f629a43b18b5331669a1ee9fc8d5f66572dfbe7b

Download Submit
memory/2700-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2700-43-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2700-41-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2700-37-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2700-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2700-36-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/3044-4-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3044-12-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/3044-11-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3044-10-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3044-9-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3044-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3044-3-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3044-2-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3044-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3044-6-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3044-7-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3044-8-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads