darkcomet | a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 04:41

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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

Executes dropped EXE 2 IoCs

pid	Process
2936	IMDCSC.exe
468	IMDCSC.exe

Loads dropped DLL 3 IoCs

pid	Process
2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
2936	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-1-5-21-2039016743-699959520-214465309-1000\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 2256 set thread context of 2696	2256	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	30
PID 2936 set thread context of 468	2936	IMDCSC.exe	32

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2696-2-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-8-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-13-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-14-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-12-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-11-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-10-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-9-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-4-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/468-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/468-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/468-41-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/468-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-42-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/468-44-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/468-47-0x0000000000400000-0x00000000004B7000-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	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeSecurityPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeTakeOwnershipPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeLoadDriverPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeSystemProfilePrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeSystemtimePrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeProfSingleProcessPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeIncBasePriorityPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeCreatePagefilePrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeBackupPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeRestorePrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeShutdownPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeDebugPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeSystemEnvironmentPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeChangeNotifyPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeRemoteShutdownPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeUndockPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeManageVolumePrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeImpersonatePrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeCreateGlobalPrivilege	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: 33	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: 34	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: 35	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
Token: SeIncreaseQuotaPrivilege	468	IMDCSC.exe
Token: SeSecurityPrivilege	468	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	468	IMDCSC.exe
Token: SeLoadDriverPrivilege	468	IMDCSC.exe
Token: SeSystemProfilePrivilege	468	IMDCSC.exe
Token: SeSystemtimePrivilege	468	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	468	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	468	IMDCSC.exe
Token: SeCreatePagefilePrivilege	468	IMDCSC.exe
Token: SeBackupPrivilege	468	IMDCSC.exe
Token: SeRestorePrivilege	468	IMDCSC.exe
Token: SeShutdownPrivilege	468	IMDCSC.exe
Token: SeDebugPrivilege	468	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	468	IMDCSC.exe
Token: SeChangeNotifyPrivilege	468	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	468	IMDCSC.exe
Token: SeUndockPrivilege	468	IMDCSC.exe
Token: SeManageVolumePrivilege	468	IMDCSC.exe
Token: SeImpersonatePrivilege	468	IMDCSC.exe
Token: SeCreateGlobalPrivilege	468	IMDCSC.exe
Token: 33	468	IMDCSC.exe
Token: 34	468	IMDCSC.exe
Token: 35	468	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
468	IMDCSC.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2696	2256	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	30
PID 2256 wrote to memory of 2696	2256	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	30
PID 2256 wrote to memory of 2696	2256	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	30
PID 2256 wrote to memory of 2696	2256	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	30
PID 2256 wrote to memory of 2696	2256	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	30
PID 2256 wrote to memory of 2696	2256	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	30
PID 2256 wrote to memory of 2696	2256	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	30
PID 2256 wrote to memory of 2696	2256	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	30
PID 2696 wrote to memory of 2936	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	31
PID 2696 wrote to memory of 2936	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	31
PID 2696 wrote to memory of 2936	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	31
PID 2696 wrote to memory of 2936	2696	a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe	31
PID 2936 wrote to memory of 468	2936	IMDCSC.exe	32
PID 2936 wrote to memory of 468	2936	IMDCSC.exe	32
PID 2936 wrote to memory of 468	2936	IMDCSC.exe	32
PID 2936 wrote to memory of 468	2936	IMDCSC.exe	32
PID 2936 wrote to memory of 468	2936	IMDCSC.exe	32
PID 2936 wrote to memory of 468	2936	IMDCSC.exe	32
PID 2936 wrote to memory of 468	2936	IMDCSC.exe	32
PID 2936 wrote to memory of 468	2936	IMDCSC.exe	32

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:2256
- C:\Users\Admin\AppData\Local\Temp\a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.exe
  "C:\Users\Admin\AppData\Local\Temp\a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd.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:2696
- - 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:2936
  - - 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:468

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

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

Filesize
304KB

MD5
ea2ddaaac329669ede95d16a7ff66357

SHA1
f4f26458201d1376dfdefe8ce72449fe1137b40a

SHA256
a73f79df00e6c561c99cc1055977ad178647b474d5c8b8452f303f97734bbadd

SHA512
887c332c15104d41fe18c71ecb539c637981b125659ede04266a38e55365e1b7ca4a3b96bf530f5e7ccac5ac21c5d6560d6dcf5e273ea7bc5507307bdc7f8fb3

Download Submit
memory/468-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/468-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/468-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/468-41-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/468-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/468-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-12-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-9-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-4-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2696-10-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-11-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-2-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-14-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-42-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-13-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-8-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads