darkcomet | df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185

General

Target

df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe
Size

574KB
MD5

b437208edc36467cec9c9d7552d8ef50
SHA1

adbfc7026f15e6c74b9deaf8a3c484294b654c2a
SHA256

df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185
SHA512

5e075523f346d7764e21f953a0b062248f2341b31a434abd4f4e0b93eec0a3b71ecd141192abe2ae16698dee9fbd144b399a1163c24b2a9c67d37d233c2fd4e9
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsub6:zFhWAfn22m0eD1GPz8HdxO

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

2868 Soundcrd.exe
2828 Soundcrd.exe
2116 Soundcrd.exe

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

pid	process
2868	Soundcrd.exe
2828	Soundcrd.exe
2116	Soundcrd.exe

Loads dropped DLL 7 IoCs

Processes:

df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exeSoundcrd.exe

pid	process
2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe
2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe
2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe
2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe
2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe
2868	Soundcrd.exe
2868	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-1-5-21-3692679935-4019334568-335155002-1000\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 2868 set thread context of 2828	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 set thread context of 2116	2868	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/2116-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2116-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2116-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2116-58-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2828-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2116-74-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2828-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2828-95-0x0000000000400000-0x00000000004B5000-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

Processes:

df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.execmd.exereg.exeSoundcrd.exeSoundcrd.exeSoundcrd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.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 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

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	2116	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2828	Soundcrd.exe
Token: SeSecurityPrivilege	2828	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2828	Soundcrd.exe
Token: SeLoadDriverPrivilege	2828	Soundcrd.exe
Token: SeSystemProfilePrivilege	2828	Soundcrd.exe
Token: SeSystemtimePrivilege	2828	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2828	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2828	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2828	Soundcrd.exe
Token: SeBackupPrivilege	2828	Soundcrd.exe
Token: SeRestorePrivilege	2828	Soundcrd.exe
Token: SeShutdownPrivilege	2828	Soundcrd.exe
Token: SeDebugPrivilege	2828	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2828	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2828	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2828	Soundcrd.exe
Token: SeUndockPrivilege	2828	Soundcrd.exe
Token: SeManageVolumePrivilege	2828	Soundcrd.exe
Token: SeImpersonatePrivilege	2828	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2828	Soundcrd.exe
Token: 33	2828	Soundcrd.exe
Token: 34	2828	Soundcrd.exe
Token: 35	2828	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exeSoundcrd.exeSoundcrd.exe

pid process

2236 df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe
2868 Soundcrd.exe
2116 Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.execmd.exeSoundcrd.exe

description	pid	process	target process
PID 2236 wrote to memory of 2548	2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe	cmd.exe
PID 2236 wrote to memory of 2548	2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe	cmd.exe
PID 2236 wrote to memory of 2548	2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe	cmd.exe
PID 2236 wrote to memory of 2548	2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe	cmd.exe
PID 2548 wrote to memory of 1664	2548	cmd.exe	reg.exe
PID 2548 wrote to memory of 1664	2548	cmd.exe	reg.exe
PID 2548 wrote to memory of 1664	2548	cmd.exe	reg.exe
PID 2548 wrote to memory of 1664	2548	cmd.exe	reg.exe
PID 2236 wrote to memory of 2868	2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe	Soundcrd.exe
PID 2236 wrote to memory of 2868	2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe	Soundcrd.exe
PID 2236 wrote to memory of 2868	2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe	Soundcrd.exe
PID 2236 wrote to memory of 2868	2236	df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe	Soundcrd.exe
PID 2868 wrote to memory of 2828	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2828	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2828	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2828	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2828	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2828	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2828	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2828	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2828	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2116	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2116	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2116	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2116	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2116	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2116	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2116	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2116	2868	Soundcrd.exe	Soundcrd.exe
PID 2868 wrote to memory of 2116	2868	Soundcrd.exe	Soundcrd.exe

C:\Users\Admin\AppData\Local\Temp\df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe
"C:\Users\Admin\AppData\Local\Temp\df7b910bbc8fdb3e6f99037236ac9c84b42c42639ccf9c63939a79b6457b6185N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\myOzY.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2548
- - 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:1664
- 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:2868
- - 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:2828
- - 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:2116

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

Replay Monitor

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Downloads

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

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
0d9b1cfcf1e06f478238becea4997f0c

SHA1
eff449c69315bb73a5fba569d58eff97596468ab

SHA256
d26e7bfefa40bf3235efaa11eadfa8110f79525eb55e3826e4ec06459a3811f7

SHA512
a84580b2e54db8f893ff6b7f7dbf27357b1f7c1018817895e06d62ae58257c4ccb401f83624da327029cb95163cd6fe2cec9b6a08499b2a697b13c24af153922

Download Submit
memory/2116-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2116-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2116-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2116-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2116-74-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2236-46-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2236-42-0x0000000003200000-0x00000000035EA000-memory.dmp

Filesize
3.9MB

Download
memory/2236-44-0x0000000003200000-0x00000000035EA000-memory.dmp

Filesize
3.9MB

Download
memory/2236-2-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2828-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2828-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2868-63-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2868-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2868-56-0x0000000002B80000-0x0000000002F6A000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads