darkcomet | 7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61

General

Target

7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe
Size

3.9MB
MD5

3d84949af2d5bd0e27c5f0f348a57220
SHA1

15685d4c0ef9a8913573ddb0bf4969b8e55c7933
SHA256

7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61
SHA512

476da33540a0094475d7e91a2b2a0d0f2356c0d048b8fad827671ab966db4cbfd333a04078f57ed45ef8f2c613e689f3ab2dfd999293e9f8ccd210d3b3d9b3a4
SSDEEP

98304:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cl:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBl

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

Processes:

Soundcrd.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate Soundcrd.exe
Executes dropped EXE 3 IoCs

Processes:

Soundcrd.exeSoundcrd.exeSoundcrd.exe

pid process

568 Soundcrd.exe
2928 Soundcrd.exe
2868 Soundcrd.exe

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

pid	process
568	Soundcrd.exe
2928	Soundcrd.exe
2868	Soundcrd.exe

Loads dropped DLL 7 IoCs

Processes:

7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exeSoundcrd.exe

pid	process
2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe
2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe
2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe
2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe
2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe
568	Soundcrd.exe
568	Soundcrd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mcrosoftt = "C:\\Users\\Admin\\AppData\\Roaming\\Soundcrd.exe"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Soundcrd.exe

description	pid	process	target process
PID 568 set thread context of 2928	568	Soundcrd.exe	Soundcrd.exe
PID 568 set thread context of 2868	568	Soundcrd.exe	Soundcrd.exe

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2928-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2868-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2868-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2868-56-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2928-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2868-53-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2928-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2868-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2928-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-84-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-88-0x0000000000400000-0x00000000004B5000-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

Processes:

7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.execmd.exereg.exeSoundcrd.exeSoundcrd.exeSoundcrd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.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

Processes:

Soundcrd.exe

description	ioc	process
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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Soundcrd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

Soundcrd.exe

description ioc process

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

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

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

Soundcrd.exeSoundcrd.exe

description	pid	process
Token: SeDebugPrivilege	2868	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2928	Soundcrd.exe
Token: SeSecurityPrivilege	2928	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2928	Soundcrd.exe
Token: SeLoadDriverPrivilege	2928	Soundcrd.exe
Token: SeSystemProfilePrivilege	2928	Soundcrd.exe
Token: SeSystemtimePrivilege	2928	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2928	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2928	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2928	Soundcrd.exe
Token: SeBackupPrivilege	2928	Soundcrd.exe
Token: SeRestorePrivilege	2928	Soundcrd.exe
Token: SeShutdownPrivilege	2928	Soundcrd.exe
Token: SeDebugPrivilege	2928	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2928	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2928	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2928	Soundcrd.exe
Token: SeUndockPrivilege	2928	Soundcrd.exe
Token: SeManageVolumePrivilege	2928	Soundcrd.exe
Token: SeImpersonatePrivilege	2928	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2928	Soundcrd.exe
Token: 33	2928	Soundcrd.exe
Token: 34	2928	Soundcrd.exe
Token: 35	2928	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exeSoundcrd.exeSoundcrd.exe

pid process

2076 7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe
568 Soundcrd.exe
2868 Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.execmd.exeSoundcrd.exe

description	pid	process	target process
PID 2076 wrote to memory of 1948	2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe	cmd.exe
PID 2076 wrote to memory of 1948	2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe	cmd.exe
PID 2076 wrote to memory of 1948	2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe	cmd.exe
PID 2076 wrote to memory of 1948	2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe	cmd.exe
PID 1948 wrote to memory of 3012	1948	cmd.exe	reg.exe
PID 1948 wrote to memory of 3012	1948	cmd.exe	reg.exe
PID 1948 wrote to memory of 3012	1948	cmd.exe	reg.exe
PID 1948 wrote to memory of 3012	1948	cmd.exe	reg.exe
PID 2076 wrote to memory of 568	2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe	Soundcrd.exe
PID 2076 wrote to memory of 568	2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe	Soundcrd.exe
PID 2076 wrote to memory of 568	2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe	Soundcrd.exe
PID 2076 wrote to memory of 568	2076	7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe	Soundcrd.exe
PID 568 wrote to memory of 2928	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2928	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2928	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2928	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2928	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2928	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2928	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2928	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2928	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2868	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2868	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2868	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2868	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2868	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2868	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2868	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2868	568	Soundcrd.exe	Soundcrd.exe
PID 568 wrote to memory of 2868	568	Soundcrd.exe	Soundcrd.exe

C:\Users\Admin\AppData\Local\Temp\7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe
"C:\Users\Admin\AppData\Local\Temp\7a80c67ca3d339e6e92e35ece33b68607735467ef2e39d33e59b780328f17b61N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\AycKq.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1948
- - 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:3012
- 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:568
- - 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:2928
- - 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:2868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
e89fa3f072bf8ad4aab7cfe52f42dc66

SHA1
6232c691d8515b2c3c1d8bcc70f9179282c82e92

SHA256
9d3add03724ea17de414cdc745603e8ef7c5e458e64a9b9afbcfbb030c8e11fa

SHA512
d1931ee90e9aca9c5dec07496c113828c666d6d7fe2ceb7feb207a23856eaaf4d28f6a812dae885e0385734b516f62ac58ac77c140f57179c3621233b079bde4

Download Submit
memory/2076-0-0x0000000000400000-0x00000000007E8000-memory.dmp

Filesize
3.9MB

Download
memory/2868-53-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2868-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2868-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2868-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2868-56-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2928-48-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads