darkcomet | a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd

Analysis

max time kernel
149s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2024 04:45

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General

Target

a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Size

304KB
MD5

ea2ddaaac329669ede95d16a7ff66357
SHA1

f4f26458201d1376dfdefe8ce72449fe1137b40a
SHA256

a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd
SHA512

887c332c15104d41fe18c71ecb539c637981b125659ede04266a38e55365e1b7ca4a3b96bf530f5e7ccac5ac21c5d6560d6dcf5e273ea7bc5507307bdc7f8fb3
SSDEEP

6144:X2T/3If9vSuNT6woPu7pWil15P0Wrep5h05X/CpNWpyJoNCzZ:XQ3ICaEil16Cs5u1974N

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"	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe

Executes dropped EXE 2 IoCs

pid	Process
3460	IMDCSC.exe
3572	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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\210978 = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 4720	3044	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	82
PID 3460 set thread context of 3572	3460	IMDCSC.exe	84

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4720-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4720-2-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4720-3-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4720-4-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4720-5-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4720-6-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3572-23-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3572-24-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3572-25-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3572-26-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4720-27-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3572-29-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3572-32-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3572-34-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3572-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3572-42-0x0000000000400000-0x00000000004B7000-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	IMDCSC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeSecurityPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeTakeOwnershipPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeLoadDriverPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeSystemProfilePrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeSystemtimePrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeProfSingleProcessPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeIncBasePriorityPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeCreatePagefilePrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeBackupPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeRestorePrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeShutdownPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeDebugPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeSystemEnvironmentPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeChangeNotifyPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeRemoteShutdownPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeUndockPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeManageVolumePrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeImpersonatePrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeCreateGlobalPrivilege	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: 33	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: 34	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: 35	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: 36	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeIncreaseQuotaPrivilege	3572	IMDCSC.exe
Token: SeSecurityPrivilege	3572	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	3572	IMDCSC.exe
Token: SeLoadDriverPrivilege	3572	IMDCSC.exe
Token: SeSystemProfilePrivilege	3572	IMDCSC.exe
Token: SeSystemtimePrivilege	3572	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	3572	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	3572	IMDCSC.exe
Token: SeCreatePagefilePrivilege	3572	IMDCSC.exe
Token: SeBackupPrivilege	3572	IMDCSC.exe
Token: SeRestorePrivilege	3572	IMDCSC.exe
Token: SeShutdownPrivilege	3572	IMDCSC.exe
Token: SeDebugPrivilege	3572	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	3572	IMDCSC.exe
Token: SeChangeNotifyPrivilege	3572	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	3572	IMDCSC.exe
Token: SeUndockPrivilege	3572	IMDCSC.exe
Token: SeManageVolumePrivilege	3572	IMDCSC.exe
Token: SeImpersonatePrivilege	3572	IMDCSC.exe
Token: SeCreateGlobalPrivilege	3572	IMDCSC.exe
Token: 33	3572	IMDCSC.exe
Token: 34	3572	IMDCSC.exe
Token: 35	3572	IMDCSC.exe
Token: 36	3572	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3572	IMDCSC.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 4720	3044	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	82
PID 3044 wrote to memory of 4720	3044	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	82
PID 3044 wrote to memory of 4720	3044	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	82
PID 3044 wrote to memory of 4720	3044	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	82
PID 3044 wrote to memory of 4720	3044	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	82
PID 3044 wrote to memory of 4720	3044	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	82
PID 3044 wrote to memory of 4720	3044	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	82
PID 3044 wrote to memory of 4720	3044	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	82
PID 4720 wrote to memory of 3460	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	83
PID 4720 wrote to memory of 3460	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	83
PID 4720 wrote to memory of 3460	4720	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	83
PID 3460 wrote to memory of 3572	3460	IMDCSC.exe	84
PID 3460 wrote to memory of 3572	3460	IMDCSC.exe	84
PID 3460 wrote to memory of 3572	3460	IMDCSC.exe	84
PID 3460 wrote to memory of 3572	3460	IMDCSC.exe	84
PID 3460 wrote to memory of 3572	3460	IMDCSC.exe	84
PID 3460 wrote to memory of 3572	3460	IMDCSC.exe	84
PID 3460 wrote to memory of 3572	3460	IMDCSC.exe	84
PID 3460 wrote to memory of 3572	3460	IMDCSC.exe	84

C:\Users\Admin\AppData\Local\Temp\a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
"C:\Users\Admin\AppData\Local\Temp\a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Users\Admin\AppData\Local\Temp\a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
  "C:\Users\Admin\AppData\Local\Temp\a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4720
- - C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
    "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3460
  - - 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:3572

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

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\Documents\DCSCMIN\IMDCSC.exe

Filesize
304KB

MD5
ea2ddaaac329669ede95d16a7ff66357

SHA1
f4f26458201d1376dfdefe8ce72449fe1137b40a

SHA256
a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd

SHA512
887c332c15104d41fe18c71ecb539c637981b125659ede04266a38e55365e1b7ca4a3b96bf530f5e7ccac5ac21c5d6560d6dcf5e273ea7bc5507307bdc7f8fb3

Download Submit
memory/3572-29-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3572-23-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3572-42-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3572-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3572-25-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3572-34-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3572-32-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3572-24-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3572-26-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4720-6-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4720-27-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4720-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4720-3-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4720-2-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4720-5-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4720-4-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads