darkcomet | 55edcf08f8521a9cddde8570baaac0ab8ef6e640e96c834db0e5c12f5b9c68fe

Analysis

max time kernel
101s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:18

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General

Target

f373a271fe4709f9373cd3f5d1519b4055cf99521118a2b8dc790e358b3e1472.exe
Size

1.6MB
MD5

035fb85d4bfb5d363a2e19689c5293ec
SHA1

3d19aba6ea72ceef39689f1aac1cf79f48da3003
SHA256

f373a271fe4709f9373cd3f5d1519b4055cf99521118a2b8dc790e358b3e1472
SHA512

8308bb0f3d867ed63c57f29a345f97a2179277648910c2499e9cf016f84b0a09bb2aab50a59b258ee569fa79cb5d3269804f693a42db9228a903b9e3368d0a63
SSDEEP

24576:TK1mgY/IrFL0sp2ctQVvIUu6+HnihZVFGZo0Pzv8veL4uso/G3X3BrVv:hIgc2xn+CbVFGjL0veL42u35Vv

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

vendetta123.myftp.biz:1604

vendetta123.myftp.biz:8080

vendetta32.myftp.biz:8080

vendetta32.myftp.biz:1604

Mutex

DC_MUTEX-EPHKD8X

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
GwGlrzWozjeS
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:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	Trojaner.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
1996	attrib.exe
4376	attrib.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation	f373a271fe4709f9373cd3f5d1519b4055cf99521118a2b8dc790e358b3e1472.exe
Key value queried	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation	Trojaner.exe

Executes dropped EXE 2 IoCs

pid	Process
1080	Trojaner.exe
2424	msdcsc.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-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	Trojaner.exe

Drops file in System32 directory 3 IoCs

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

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 7 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	cmd.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	Trojaner.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\iz1617645185b.gnq	Trojaner.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\iz1617645185b.gnq\ = f938d4689c8c25616ef51b42a123de9fbda16ea400934070	Trojaner.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Trojaner.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1080	Trojaner.exe
Token: SeSecurityPrivilege	1080	Trojaner.exe
Token: SeTakeOwnershipPrivilege	1080	Trojaner.exe
Token: SeLoadDriverPrivilege	1080	Trojaner.exe
Token: SeSystemProfilePrivilege	1080	Trojaner.exe
Token: SeSystemtimePrivilege	1080	Trojaner.exe
Token: SeProfSingleProcessPrivilege	1080	Trojaner.exe
Token: SeIncBasePriorityPrivilege	1080	Trojaner.exe
Token: SeCreatePagefilePrivilege	1080	Trojaner.exe
Token: SeBackupPrivilege	1080	Trojaner.exe
Token: SeRestorePrivilege	1080	Trojaner.exe
Token: SeShutdownPrivilege	1080	Trojaner.exe
Token: SeDebugPrivilege	1080	Trojaner.exe
Token: SeSystemEnvironmentPrivilege	1080	Trojaner.exe
Token: SeChangeNotifyPrivilege	1080	Trojaner.exe
Token: SeRemoteShutdownPrivilege	1080	Trojaner.exe
Token: SeUndockPrivilege	1080	Trojaner.exe
Token: SeManageVolumePrivilege	1080	Trojaner.exe
Token: SeImpersonatePrivilege	1080	Trojaner.exe
Token: SeCreateGlobalPrivilege	1080	Trojaner.exe
Token: 33	1080	Trojaner.exe
Token: 34	1080	Trojaner.exe
Token: 35	1080	Trojaner.exe
Token: 36	1080	Trojaner.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 1080	2280	f373a271fe4709f9373cd3f5d1519b4055cf99521118a2b8dc790e358b3e1472.exe	94
PID 2280 wrote to memory of 1080	2280	f373a271fe4709f9373cd3f5d1519b4055cf99521118a2b8dc790e358b3e1472.exe	94
PID 2280 wrote to memory of 1080	2280	f373a271fe4709f9373cd3f5d1519b4055cf99521118a2b8dc790e358b3e1472.exe	94
PID 1080 wrote to memory of 2376	1080	Trojaner.exe	97
PID 1080 wrote to memory of 2376	1080	Trojaner.exe	97
PID 1080 wrote to memory of 2376	1080	Trojaner.exe	97
PID 1080 wrote to memory of 1924	1080	Trojaner.exe	99
PID 1080 wrote to memory of 1924	1080	Trojaner.exe	99
PID 1080 wrote to memory of 1924	1080	Trojaner.exe	99
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 1080 wrote to memory of 4988	1080	Trojaner.exe	100
PID 2376 wrote to memory of 1996	2376	cmd.exe	102
PID 2376 wrote to memory of 1996	2376	cmd.exe	102
PID 2376 wrote to memory of 1996	2376	cmd.exe	102
PID 1924 wrote to memory of 4376	1924	cmd.exe	103
PID 1924 wrote to memory of 4376	1924	cmd.exe	103
PID 1924 wrote to memory of 4376	1924	cmd.exe	103
PID 1080 wrote to memory of 2424	1080	Trojaner.exe	104
PID 1080 wrote to memory of 2424	1080	Trojaner.exe	104
PID 1080 wrote to memory of 2424	1080	Trojaner.exe	104

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
1996	attrib.exe
4376	attrib.exe

C:\Users\Admin\AppData\Local\Temp\f373a271fe4709f9373cd3f5d1519b4055cf99521118a2b8dc790e358b3e1472.exe
"C:\Users\Admin\AppData\Local\Temp\f373a271fe4709f9373cd3f5d1519b4055cf99521118a2b8dc790e358b3e1472.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Local\Temp\Trojaner.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojaner.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1080
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Trojaner.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2376
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\Trojaner.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:1996
- - 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:1924
  - - 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:4376
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4988
- - C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
    "C:\Windows\system32\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2424

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

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\Trojaner.exe

Filesize
1.2MB

MD5
2cbc81bd2bba98618393305727b68d61

SHA1
03ab51a5bb74f7fdeb7c5e88446c00a964e7d01a

SHA256
2ebecdbf36e47198d74d46b33fa5deceb9c6db379ce4c445730f8b1d034ca6dd

SHA512
9703dc5dd27c2b123f30160697012d3d0693813223722bf701fb67351718a804b2b9ec70b913340586a27fd836bb25d629a2a3d085adab212c91d90398457582

Download Submit
memory/1080-22-0x0000000000400000-0x00000000005E7000-memory.dmp

Filesize
1.9MB

Download
memory/1080-14-0x0000000000400000-0x00000000005E7000-memory.dmp

Filesize
1.9MB

Download
memory/1080-17-0x000000000048F000-0x0000000000491000-memory.dmp

Filesize
8KB

Download
memory/1080-18-0x0000000000400000-0x00000000005E7000-memory.dmp

Filesize
1.9MB

Download
memory/1080-19-0x0000000000400000-0x00000000005E7000-memory.dmp

Filesize
1.9MB

Download
memory/1080-83-0x0000000000400000-0x00000000005E7000-memory.dmp

Filesize
1.9MB

Download
memory/2280-1-0x0000000000680000-0x000000000081C000-memory.dmp

Filesize
1.6MB

Download
memory/2280-10-0x00007FFABA260000-0x00007FFABAD21000-memory.dmp

Filesize
10.8MB

Download
memory/2280-16-0x00007FFABA260000-0x00007FFABAD21000-memory.dmp

Filesize
10.8MB

Download
memory/2280-0-0x00007FFABA263000-0x00007FFABA265000-memory.dmp

Filesize
8KB

Download
memory/2424-85-0x0000000000400000-0x00000000005E7000-memory.dmp

Filesize
1.9MB

Download
memory/4988-24-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads