darkcomet | c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9

Analysis

max time kernel
149s
max time network
147s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
31/12/2024, 03:39

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General

Target

c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe
Size

3.9MB
MD5

1ed017751ab0d1345efdd7e61c28645e
SHA1

2332317669f2457db6d6543b2335fb95e88b77ce
SHA256

c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9
SHA512

aabd98c092421d42ef53e85b1f4b374535ce9dcbfb49710f03eb97a332bd918276ced15aace83ce390810e158149d7155d4cee6b8b8801349653b846ace1b527
SSDEEP

98304:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cf:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBf

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
2896	Soundcrd.exe
2848	Soundcrd.exe
2796	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe
2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe
2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe
2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe
2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe
2896	Soundcrd.exe
2896	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 2896 set thread context of 2848	2896	Soundcrd.exe	33
PID 2896 set thread context of 2796	2896	Soundcrd.exe	34

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2848-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-52-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2848-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2848-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-58-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2796-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2848-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-68-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2848-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-77-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-85-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-89-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-95-0x0000000000400000-0x00000000004B5000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Soundcrd.exe
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

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: SeDebugPrivilege	2796	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2848	Soundcrd.exe
Token: SeSecurityPrivilege	2848	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2848	Soundcrd.exe
Token: SeLoadDriverPrivilege	2848	Soundcrd.exe
Token: SeSystemProfilePrivilege	2848	Soundcrd.exe
Token: SeSystemtimePrivilege	2848	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2848	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2848	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2848	Soundcrd.exe
Token: SeBackupPrivilege	2848	Soundcrd.exe
Token: SeRestorePrivilege	2848	Soundcrd.exe
Token: SeShutdownPrivilege	2848	Soundcrd.exe
Token: SeDebugPrivilege	2848	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2848	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2848	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2848	Soundcrd.exe
Token: SeUndockPrivilege	2848	Soundcrd.exe
Token: SeManageVolumePrivilege	2848	Soundcrd.exe
Token: SeImpersonatePrivilege	2848	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2848	Soundcrd.exe
Token: 33	2848	Soundcrd.exe
Token: 34	2848	Soundcrd.exe
Token: 35	2848	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe
2896	Soundcrd.exe
2796	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2788	2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe	29
PID 2604 wrote to memory of 2788	2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe	29
PID 2604 wrote to memory of 2788	2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe	29
PID 2604 wrote to memory of 2788	2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe	29
PID 2788 wrote to memory of 2812	2788	cmd.exe	31
PID 2788 wrote to memory of 2812	2788	cmd.exe	31
PID 2788 wrote to memory of 2812	2788	cmd.exe	31
PID 2788 wrote to memory of 2812	2788	cmd.exe	31
PID 2604 wrote to memory of 2896	2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe	32
PID 2604 wrote to memory of 2896	2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe	32
PID 2604 wrote to memory of 2896	2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe	32
PID 2604 wrote to memory of 2896	2604	c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe	32
PID 2896 wrote to memory of 2848	2896	Soundcrd.exe	33
PID 2896 wrote to memory of 2848	2896	Soundcrd.exe	33
PID 2896 wrote to memory of 2848	2896	Soundcrd.exe	33
PID 2896 wrote to memory of 2848	2896	Soundcrd.exe	33
PID 2896 wrote to memory of 2848	2896	Soundcrd.exe	33
PID 2896 wrote to memory of 2848	2896	Soundcrd.exe	33
PID 2896 wrote to memory of 2848	2896	Soundcrd.exe	33
PID 2896 wrote to memory of 2848	2896	Soundcrd.exe	33
PID 2896 wrote to memory of 2848	2896	Soundcrd.exe	33
PID 2896 wrote to memory of 2796	2896	Soundcrd.exe	34
PID 2896 wrote to memory of 2796	2896	Soundcrd.exe	34
PID 2896 wrote to memory of 2796	2896	Soundcrd.exe	34
PID 2896 wrote to memory of 2796	2896	Soundcrd.exe	34
PID 2896 wrote to memory of 2796	2896	Soundcrd.exe	34
PID 2896 wrote to memory of 2796	2896	Soundcrd.exe	34
PID 2896 wrote to memory of 2796	2896	Soundcrd.exe	34
PID 2896 wrote to memory of 2796	2896	Soundcrd.exe	34
PID 2896 wrote to memory of 2796	2896	Soundcrd.exe	34

C:\Users\Admin\AppData\Local\Temp\c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe
"C:\Users\Admin\AppData\Local\Temp\c6c25b8429a6fe424370f98ec33b57214561ccadaa62106983d9df5ea7245dd9.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\YgDTo.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2788
- - 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:2812
- 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:2896
- - 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:2848
- - 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:2796

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\YgDTo.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
9877696d2279417eceffa864e14df3e6

SHA1
5ad8cb054d9e6f8bc89578e3c6d4bca92240c76d

SHA256
7b7f78b547023408ef84953265f493121175786beeb70ef3415fabd3c5144a99

SHA512
b01ef507a01d5a9faa3ebf2f3f7de61ca66d899105cb365f0eb1b945241091237ffd85e671400b547855a1462d961301adb246974905a43e9e055489e19be10c

Download Submit
memory/2604-0-0x0000000000400000-0x00000000007E8000-memory.dmp

Filesize
3.9MB

Download
memory/2796-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2796-68-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2796-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2796-52-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2796-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2848-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-48-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-89-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2848-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads