darkcomet | c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27

Analysis

max time kernel
149s
max time network
141s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
26/11/2024, 03:57

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General

Target

c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe
Size

3.9MB
MD5

94cea3d6b257e9c72096af0b61fa9679
SHA1

cd462c07fec074282d710469fa83c1f95c807f1c
SHA256

c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27
SHA512

2e9158667b0bd29a128589baa4660b9c8ea02fe7f6250f307ee3c10e6e86115c3a9730f650a55debb074cd83c92549b5065db3c5fb3e9cafeae09f360c085f87
SSDEEP

98304:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cw:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBw

Score

10^/10

darkcomet discovery persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Soundcrd.exe

Executes dropped EXE 3 IoCs

pid	Process
2712	Soundcrd.exe
2728	Soundcrd.exe
2700	Soundcrd.exe

Loads dropped DLL 6 IoCs

pid	Process
528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe
528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe
528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe
528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe
528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe
2712	Soundcrd.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mcrosoftt = "C:\\Users\\Admin\\AppData\\Roaming\\Soundcrd.exe"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2728	2712	Soundcrd.exe	34
PID 2712 set thread context of 2700	2712	Soundcrd.exe	35

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2728-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2700-56-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2728-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2700-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2700-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2728-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2700-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2728-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-77-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-85-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2728-89-0x0000000000400000-0x00000000004B5000-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 6 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	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Soundcrd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	Soundcrd.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2728	Soundcrd.exe
Token: SeSecurityPrivilege	2728	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2728	Soundcrd.exe
Token: SeLoadDriverPrivilege	2728	Soundcrd.exe
Token: SeSystemProfilePrivilege	2728	Soundcrd.exe
Token: SeSystemtimePrivilege	2728	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2728	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2728	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2728	Soundcrd.exe
Token: SeBackupPrivilege	2728	Soundcrd.exe
Token: SeRestorePrivilege	2728	Soundcrd.exe
Token: SeShutdownPrivilege	2728	Soundcrd.exe
Token: SeDebugPrivilege	2728	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2728	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2728	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2728	Soundcrd.exe
Token: SeUndockPrivilege	2728	Soundcrd.exe
Token: SeManageVolumePrivilege	2728	Soundcrd.exe
Token: SeImpersonatePrivilege	2728	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2728	Soundcrd.exe
Token: 33	2728	Soundcrd.exe
Token: 34	2728	Soundcrd.exe
Token: 35	2728	Soundcrd.exe
Token: SeDebugPrivilege	2700	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe
2712	Soundcrd.exe
2700	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 2816	528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe	30
PID 528 wrote to memory of 2816	528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe	30
PID 528 wrote to memory of 2816	528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe	30
PID 528 wrote to memory of 2816	528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe	30
PID 2816 wrote to memory of 2992	2816	cmd.exe	32
PID 2816 wrote to memory of 2992	2816	cmd.exe	32
PID 2816 wrote to memory of 2992	2816	cmd.exe	32
PID 2816 wrote to memory of 2992	2816	cmd.exe	32
PID 528 wrote to memory of 2712	528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe	33
PID 528 wrote to memory of 2712	528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe	33
PID 528 wrote to memory of 2712	528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe	33
PID 528 wrote to memory of 2712	528	c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe	33
PID 2712 wrote to memory of 2728	2712	Soundcrd.exe	34
PID 2712 wrote to memory of 2728	2712	Soundcrd.exe	34
PID 2712 wrote to memory of 2728	2712	Soundcrd.exe	34
PID 2712 wrote to memory of 2728	2712	Soundcrd.exe	34
PID 2712 wrote to memory of 2728	2712	Soundcrd.exe	34
PID 2712 wrote to memory of 2728	2712	Soundcrd.exe	34
PID 2712 wrote to memory of 2728	2712	Soundcrd.exe	34
PID 2712 wrote to memory of 2728	2712	Soundcrd.exe	34
PID 2712 wrote to memory of 2728	2712	Soundcrd.exe	34
PID 2712 wrote to memory of 2700	2712	Soundcrd.exe	35
PID 2712 wrote to memory of 2700	2712	Soundcrd.exe	35
PID 2712 wrote to memory of 2700	2712	Soundcrd.exe	35
PID 2712 wrote to memory of 2700	2712	Soundcrd.exe	35
PID 2712 wrote to memory of 2700	2712	Soundcrd.exe	35
PID 2712 wrote to memory of 2700	2712	Soundcrd.exe	35
PID 2712 wrote to memory of 2700	2712	Soundcrd.exe	35
PID 2712 wrote to memory of 2700	2712	Soundcrd.exe	35
PID 2712 wrote to memory of 2700	2712	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe
"C:\Users\Admin\AppData\Local\Temp\c9d91546010853d95c97be16c7e47ba5ee793507c85dbc9cc41c35ba33bfaa27.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:528
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\kjFEp.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoftt" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Soundcrd.exe" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2992
- C:\Users\Admin\AppData\Roaming\Soundcrd.exe
  "C:\Users\Admin\AppData\Roaming\Soundcrd.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2712
- - C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    3⤵
    - Checks BIOS information in registry
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2728
- - C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    3⤵
    - 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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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\AppData\Local\Temp\kjFEp.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

Download Submit
C:\Users\Admin\AppData\Roaming\Soundcrd.exe

Filesize
3.9MB

MD5
c7416e10570218212ec094c85bf7a489

SHA1
9de33be49bc81a82f93f93e882d3ca33ca8e9e79

SHA256
ba2ef2a302a5d27d76b4c92ff249ae18caea8b28597eb633d67fcab8fd946b1d

SHA512
6f5baf378e73edf8cfbf4bd220e6aaedefd9c4435bda611a41115555ca474fa9e87e19c4b94939864f8e50e552617752c9dd630b2136d731be9a1731a5b16275

Download Submit
memory/528-0-0x0000000000400000-0x00000000007E8000-memory.dmp

Filesize
3.9MB

Download
memory/2700-56-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2700-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2700-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2700-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2728-48-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2728-89-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads