darkcomet | 329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988

General

Target

329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe
Size

574KB
MD5

fe01f79aa8cc5c6a8cd400f9db0f50a0
SHA1

668a2905ce1eca106c44eff958a296ebb16a5056
SHA256

329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988
SHA512

cd12879bbac91cc8eb81a5ede01fa73fc4e106023cf62905a535f19b3dabcda253052dea6f2e2beb90b8a63f3b6d75688e27bd59c33d3f533b3318aaa799f9c6
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsuby:zFhWAfn22m0eD1GPz8HdxG

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

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe

Executes dropped EXE 3 IoCs

Processes:

Soundcrd.exeSoundcrd.exeSoundcrd.exe

pid process

3428 Soundcrd.exe
2648 Soundcrd.exe
1584 Soundcrd.exe

pid	process
3428	Soundcrd.exe
2648	Soundcrd.exe
1584	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-1-5-21-1045960512-3948844814-3059691613-1000\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 3428 set thread context of 2648	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 set thread context of 1584	3428	Soundcrd.exe	Soundcrd.exe

UPX packed file 19 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2648-32-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-36-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-35-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/1584-37-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/2648-38-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-39-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/1584-46-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/1584-48-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/2648-43-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-42-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-41-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-40-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/1584-54-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/2648-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2648-75-0x0000000000400000-0x00000000004B5000-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:

329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.execmd.exereg.exeSoundcrd.exeSoundcrd.exeSoundcrd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.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 25 IoCs

Processes:

Soundcrd.exeSoundcrd.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2648	Soundcrd.exe
Token: SeSecurityPrivilege	2648	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2648	Soundcrd.exe
Token: SeLoadDriverPrivilege	2648	Soundcrd.exe
Token: SeSystemProfilePrivilege	2648	Soundcrd.exe
Token: SeSystemtimePrivilege	2648	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2648	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2648	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2648	Soundcrd.exe
Token: SeBackupPrivilege	2648	Soundcrd.exe
Token: SeRestorePrivilege	2648	Soundcrd.exe
Token: SeShutdownPrivilege	2648	Soundcrd.exe
Token: SeDebugPrivilege	2648	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2648	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2648	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2648	Soundcrd.exe
Token: SeUndockPrivilege	2648	Soundcrd.exe
Token: SeManageVolumePrivilege	2648	Soundcrd.exe
Token: SeImpersonatePrivilege	2648	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2648	Soundcrd.exe
Token: 33	2648	Soundcrd.exe
Token: 34	2648	Soundcrd.exe
Token: 35	2648	Soundcrd.exe
Token: 36	2648	Soundcrd.exe
Token: SeDebugPrivilege	1584	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exeSoundcrd.exeSoundcrd.exe

pid process

2280 329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe
3428 Soundcrd.exe
1584 Soundcrd.exe

pid	process
2280	329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe
3428	Soundcrd.exe
1584	Soundcrd.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.execmd.exeSoundcrd.exe

description	pid	process	target process
PID 2280 wrote to memory of 2636	2280	329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe	cmd.exe
PID 2280 wrote to memory of 2636	2280	329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe	cmd.exe
PID 2280 wrote to memory of 2636	2280	329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe	cmd.exe
PID 2636 wrote to memory of 3940	2636	cmd.exe	reg.exe
PID 2636 wrote to memory of 3940	2636	cmd.exe	reg.exe
PID 2636 wrote to memory of 3940	2636	cmd.exe	reg.exe
PID 2280 wrote to memory of 3428	2280	329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe	Soundcrd.exe
PID 2280 wrote to memory of 3428	2280	329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe	Soundcrd.exe
PID 2280 wrote to memory of 3428	2280	329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe	Soundcrd.exe
PID 3428 wrote to memory of 2648	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 2648	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 2648	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 2648	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 2648	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 2648	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 2648	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 2648	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 1584	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 1584	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 1584	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 1584	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 1584	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 1584	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 1584	3428	Soundcrd.exe	Soundcrd.exe
PID 3428 wrote to memory of 1584	3428	Soundcrd.exe	Soundcrd.exe

C:\Users\Admin\AppData\Local\Temp\329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe
"C:\Users\Admin\AppData\Local\Temp\329e48e27fc8d57914146ed9d116ccc583fb4b7ba7d47e33ef09051145f5f988N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MHGBu.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2636
- - 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:3940
- C:\Users\Admin\AppData\Roaming\Soundcrd.exe
  "C:\Users\Admin\AppData\Roaming\Soundcrd.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3428
- - 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:2648
- - 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:1584

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

4

T1012

System Information Discovery

5

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\MHGBu.txt

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
4809eef9b2e34ae15090105674442745

SHA1
ec003127147025724cdda044161bb914919ba167

SHA256
18ef96024886b7e91d7ae726f25c578fdda7757c5e4e224376172a4b74da8141

SHA512
0e1397442b6b0ba3ba3c985750faf95b4293f2af89f8930068a6e01757c57bf31f01d2deb74061a3e8ebdb5248e0d01c88ebb1d060be676a8f6f6275226bb81f

Download Submit
memory/1584-46-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1584-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1584-48-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1584-37-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2280-29-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2280-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2648-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-32-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-38-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-36-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-43-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-42-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-41-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-40-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-39-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2648-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3428-52-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads