darkcomet | 56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde

Analysis

max time kernel
141s
max time network
142s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 22:28

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General

Target

56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe
Size

574KB
MD5

ff1460be31b085b1a9858b5847e4a238
SHA1

2fc16e43e6ea8b640a7cd2511769a07e0a5e29cd
SHA256

56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde
SHA512

d42ac1c7b09a8cb64bba90e0411aee62ba720524577475a64f3a994bacf72313fe5e598217b5174ec1bf553002bc5d379ca85c2d6e3ce9e73bf8917dda67560f
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsubk:zFhWAfn22m0eD1GPz8Hdxw

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
2732	Soundcrd.exe
2600	Soundcrd.exe
2752	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe
1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe
1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe
1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe
1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe
2732	Soundcrd.exe
2732	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-1-5-21-1163522206-1469769407-485553996-1000\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 2732 set thread context of 2600	2732	Soundcrd.exe	34
PID 2732 set thread context of 2752	2732	Soundcrd.exe	35

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2600-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2752-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2600-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2752-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2752-58-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2600-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2752-74-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2600-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-95-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-99-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-101-0x0000000000400000-0x00000000004B5000-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	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.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 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: SeIncreaseQuotaPrivilege	2600	Soundcrd.exe
Token: SeSecurityPrivilege	2600	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2600	Soundcrd.exe
Token: SeLoadDriverPrivilege	2600	Soundcrd.exe
Token: SeSystemProfilePrivilege	2600	Soundcrd.exe
Token: SeSystemtimePrivilege	2600	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2600	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2600	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2600	Soundcrd.exe
Token: SeBackupPrivilege	2600	Soundcrd.exe
Token: SeRestorePrivilege	2600	Soundcrd.exe
Token: SeShutdownPrivilege	2600	Soundcrd.exe
Token: SeDebugPrivilege	2600	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2600	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2600	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2600	Soundcrd.exe
Token: SeUndockPrivilege	2600	Soundcrd.exe
Token: SeManageVolumePrivilege	2600	Soundcrd.exe
Token: SeImpersonatePrivilege	2600	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2600	Soundcrd.exe
Token: 33	2600	Soundcrd.exe
Token: 34	2600	Soundcrd.exe
Token: 35	2600	Soundcrd.exe
Token: SeDebugPrivilege	2752	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe
2732	Soundcrd.exe
2752	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 2500	1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe	30
PID 1556 wrote to memory of 2500	1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe	30
PID 1556 wrote to memory of 2500	1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe	30
PID 1556 wrote to memory of 2500	1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe	30
PID 2500 wrote to memory of 2908	2500	cmd.exe	32
PID 2500 wrote to memory of 2908	2500	cmd.exe	32
PID 2500 wrote to memory of 2908	2500	cmd.exe	32
PID 2500 wrote to memory of 2908	2500	cmd.exe	32
PID 1556 wrote to memory of 2732	1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe	33
PID 1556 wrote to memory of 2732	1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe	33
PID 1556 wrote to memory of 2732	1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe	33
PID 1556 wrote to memory of 2732	1556	56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe	33
PID 2732 wrote to memory of 2600	2732	Soundcrd.exe	34
PID 2732 wrote to memory of 2600	2732	Soundcrd.exe	34
PID 2732 wrote to memory of 2600	2732	Soundcrd.exe	34
PID 2732 wrote to memory of 2600	2732	Soundcrd.exe	34
PID 2732 wrote to memory of 2600	2732	Soundcrd.exe	34
PID 2732 wrote to memory of 2600	2732	Soundcrd.exe	34
PID 2732 wrote to memory of 2600	2732	Soundcrd.exe	34
PID 2732 wrote to memory of 2600	2732	Soundcrd.exe	34
PID 2732 wrote to memory of 2600	2732	Soundcrd.exe	34
PID 2732 wrote to memory of 2752	2732	Soundcrd.exe	35
PID 2732 wrote to memory of 2752	2732	Soundcrd.exe	35
PID 2732 wrote to memory of 2752	2732	Soundcrd.exe	35
PID 2732 wrote to memory of 2752	2732	Soundcrd.exe	35
PID 2732 wrote to memory of 2752	2732	Soundcrd.exe	35
PID 2732 wrote to memory of 2752	2732	Soundcrd.exe	35
PID 2732 wrote to memory of 2752	2732	Soundcrd.exe	35
PID 2732 wrote to memory of 2752	2732	Soundcrd.exe	35
PID 2732 wrote to memory of 2752	2732	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe
"C:\Users\Admin\AppData\Local\Temp\56d407cf9eec683bcda156a274f884cd965c84e0f5653967a6054c14f3c5ecde.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\VEpxf.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2500
- - 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:2908
- 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:2732
- - 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:2600
- - 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:2752

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\VEpxf.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
3a674fc0c6d81d4fad58bdb20ba7729a

SHA1
4564fbb05a78f290ffe96b8060874dd6da05a392

SHA256
090db055bb95304b457a1399cfba203a7e6786589ae3b6cf2654018ddc78ff05

SHA512
aca6f63c1d3b443bfe3105814622edc12cf34ef7e7fb7e1e459c997c41baf2e9e9471c973f49d915e32337507a6292bfef80d9aedc71c9ab14c2ed669c8771b8

Download Submit
memory/1556-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/1556-72-0x0000000003A60000-0x0000000003E4A000-memory.dmp

Filesize
3.9MB

Download
memory/1556-44-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2600-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-101-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-99-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2732-45-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2732-65-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2732-50-0x0000000002BD0000-0x0000000002FBA000-memory.dmp

Filesize
3.9MB

Download
memory/2732-56-0x0000000002BD0000-0x0000000002FBA000-memory.dmp

Filesize
3.9MB

Download
memory/2752-74-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2752-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2752-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2752-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads