darkcomet | 6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6

Analysis

max time kernel
112s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 19:05

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General

Target

6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe
Size

574KB
MD5

973c4022854614166817794e17025740
SHA1

3f4bbc5c43073d445568b4e68ade31c0ee70d488
SHA256

6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6
SHA512

8c535a98b3c275c20dad7ca3b3fa5d08f0ca05b2e0c3c260c1e99b097d69286c8fcfe284cfb6f1de32753ef5a4986467afb2ae6b69c04bd2d0bbeb4b59396546
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsubj:zFhWAfn22m0eD1GPz8HdxP

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
2420	Soundcrd.exe
2896	Soundcrd.exe
2756	Soundcrd.exe

Loads dropped DLL 6 IoCs

pid	Process
2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe
2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe
2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe
2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe
2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe
2420	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 2420 set thread context of 2896	2420	Soundcrd.exe	34
PID 2420 set thread context of 2756	2420	Soundcrd.exe	35

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2896-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-63-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2896-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2756-69-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2756-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2896-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-75-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2896-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-90-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-94-0x0000000000400000-0x00000000004B5000-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	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.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	2896	Soundcrd.exe
Token: SeSecurityPrivilege	2896	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2896	Soundcrd.exe
Token: SeLoadDriverPrivilege	2896	Soundcrd.exe
Token: SeSystemProfilePrivilege	2896	Soundcrd.exe
Token: SeSystemtimePrivilege	2896	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2896	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2896	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2896	Soundcrd.exe
Token: SeBackupPrivilege	2896	Soundcrd.exe
Token: SeRestorePrivilege	2896	Soundcrd.exe
Token: SeShutdownPrivilege	2896	Soundcrd.exe
Token: SeDebugPrivilege	2896	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2896	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2896	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2896	Soundcrd.exe
Token: SeUndockPrivilege	2896	Soundcrd.exe
Token: SeManageVolumePrivilege	2896	Soundcrd.exe
Token: SeImpersonatePrivilege	2896	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2896	Soundcrd.exe
Token: 33	2896	Soundcrd.exe
Token: 34	2896	Soundcrd.exe
Token: 35	2896	Soundcrd.exe
Token: SeDebugPrivilege	2756	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe
2420	Soundcrd.exe
2756	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2520	2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe	30
PID 2324 wrote to memory of 2520	2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe	30
PID 2324 wrote to memory of 2520	2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe	30
PID 2324 wrote to memory of 2520	2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe	30
PID 2520 wrote to memory of 2304	2520	cmd.exe	32
PID 2520 wrote to memory of 2304	2520	cmd.exe	32
PID 2520 wrote to memory of 2304	2520	cmd.exe	32
PID 2520 wrote to memory of 2304	2520	cmd.exe	32
PID 2324 wrote to memory of 2420	2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe	33
PID 2324 wrote to memory of 2420	2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe	33
PID 2324 wrote to memory of 2420	2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe	33
PID 2324 wrote to memory of 2420	2324	6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe	33
PID 2420 wrote to memory of 2896	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2896	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2896	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2896	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2896	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2896	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2896	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2896	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2896	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2756	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2756	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2756	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2756	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2756	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2756	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2756	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2756	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2756	2420	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe
"C:\Users\Admin\AppData\Local\Temp\6143c99a689ffba264343e77296ddb5634f8e4076758745e0dcfbb48dfce52e6N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\hgpSr.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2520
- - 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:2304
- 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:2420
- - 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:2896
- - 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:2756

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\hgpSr.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
3a82e60d70fae9b078eae513b488d22b

SHA1
bcd7ad650e1ddb6372ef3dc92f43a9930ff9656b

SHA256
d58d578bfd5279eb6fa47c80a4e1043d68edec9ac633ecf192e4467f028abe38

SHA512
0a2a23cc6c5611785e0d518c29e6f43ebcef3e0a5266a3e4f51578af21909a32544922f2f5d1172abe903533edf5bd270fca7bc9f750922cf7898c355338475c

Download Submit
memory/2324-44-0x0000000003A50000-0x0000000003E3A000-memory.dmp

Filesize
3.9MB

Download
memory/2324-43-0x0000000003A50000-0x0000000003E3A000-memory.dmp

Filesize
3.9MB

Download
memory/2324-48-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2324-42-0x0000000003A50000-0x0000000003E3A000-memory.dmp

Filesize
3.9MB

Download
memory/2324-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2420-72-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2420-46-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2420-53-0x0000000002DF0000-0x00000000031DA000-memory.dmp

Filesize
3.9MB

Download
memory/2756-69-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2756-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2756-75-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2756-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2756-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2896-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads