darkcomet | cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-11-2024 00:33

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General

Target

cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe
Size

3.9MB
MD5

9f56b25fc4c95c0e65014311fd34a4f0
SHA1

fa0c726e935da635ddbe70922f236ff03bb3ff7f
SHA256

cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5
SHA512

57ff190b6d64b88fa6c2742d56d263dc2647f2a7ab2d242d08a20f2174bec23ec7223c02ccf363e8f66f1bae82e5bfd5e082ccf06f82c44a254a38c0a10dac0f
SSDEEP

98304:IlX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5CG:IlX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBG

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
2716	Soundcrd.exe
2860	Soundcrd.exe
2724	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe
2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe
2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe
2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe
2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe
2716	Soundcrd.exe
2716	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-1-5-21-4177215427-74451935-3209572229-1000\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 2716 set thread context of 2860	2716	Soundcrd.exe	34
PID 2716 set thread context of 2724	2716	Soundcrd.exe	35

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2860-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2724-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2724-59-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2860-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2724-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2860-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2724-75-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2860-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-95-0x0000000000400000-0x00000000004B5000-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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.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: SeDebugPrivilege	2724	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2860	Soundcrd.exe
Token: SeSecurityPrivilege	2860	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2860	Soundcrd.exe
Token: SeLoadDriverPrivilege	2860	Soundcrd.exe
Token: SeSystemProfilePrivilege	2860	Soundcrd.exe
Token: SeSystemtimePrivilege	2860	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2860	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2860	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2860	Soundcrd.exe
Token: SeBackupPrivilege	2860	Soundcrd.exe
Token: SeRestorePrivilege	2860	Soundcrd.exe
Token: SeShutdownPrivilege	2860	Soundcrd.exe
Token: SeDebugPrivilege	2860	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2860	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2860	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2860	Soundcrd.exe
Token: SeUndockPrivilege	2860	Soundcrd.exe
Token: SeManageVolumePrivilege	2860	Soundcrd.exe
Token: SeImpersonatePrivilege	2860	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2860	Soundcrd.exe
Token: 33	2860	Soundcrd.exe
Token: 34	2860	Soundcrd.exe
Token: 35	2860	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe
2716	Soundcrd.exe
2724	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2688	2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe	30
PID 2528 wrote to memory of 2688	2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe	30
PID 2528 wrote to memory of 2688	2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe	30
PID 2528 wrote to memory of 2688	2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe	30
PID 2688 wrote to memory of 2916	2688	cmd.exe	32
PID 2688 wrote to memory of 2916	2688	cmd.exe	32
PID 2688 wrote to memory of 2916	2688	cmd.exe	32
PID 2688 wrote to memory of 2916	2688	cmd.exe	32
PID 2528 wrote to memory of 2716	2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe	33
PID 2528 wrote to memory of 2716	2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe	33
PID 2528 wrote to memory of 2716	2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe	33
PID 2528 wrote to memory of 2716	2528	cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe	33
PID 2716 wrote to memory of 2860	2716	Soundcrd.exe	34
PID 2716 wrote to memory of 2860	2716	Soundcrd.exe	34
PID 2716 wrote to memory of 2860	2716	Soundcrd.exe	34
PID 2716 wrote to memory of 2860	2716	Soundcrd.exe	34
PID 2716 wrote to memory of 2860	2716	Soundcrd.exe	34
PID 2716 wrote to memory of 2860	2716	Soundcrd.exe	34
PID 2716 wrote to memory of 2860	2716	Soundcrd.exe	34
PID 2716 wrote to memory of 2860	2716	Soundcrd.exe	34
PID 2716 wrote to memory of 2860	2716	Soundcrd.exe	34
PID 2716 wrote to memory of 2724	2716	Soundcrd.exe	35
PID 2716 wrote to memory of 2724	2716	Soundcrd.exe	35
PID 2716 wrote to memory of 2724	2716	Soundcrd.exe	35
PID 2716 wrote to memory of 2724	2716	Soundcrd.exe	35
PID 2716 wrote to memory of 2724	2716	Soundcrd.exe	35
PID 2716 wrote to memory of 2724	2716	Soundcrd.exe	35
PID 2716 wrote to memory of 2724	2716	Soundcrd.exe	35
PID 2716 wrote to memory of 2724	2716	Soundcrd.exe	35
PID 2716 wrote to memory of 2724	2716	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe
"C:\Users\Admin\AppData\Local\Temp\cfec3392308113922f6ddb4194ac3e4b9c0039b913723bd4fa217cc89206e7b5N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\IfDSo.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2688
- - 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:2916
- 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:2716
- - 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:2860
- - 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:2724

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\IfDSo.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
4d8c0cac88ff9020bd9e91e50dfef648

SHA1
d91ef774fa3d55331b0dece8c5bc4c8274d364c3

SHA256
fa932258007b75dcc5b86c3edff45e6a9c65b0531a505660ee2746d15ea7e690

SHA512
8bea76f9f85b798912f6f9d07cb2eabf148bf73273c5f99534f50835decd38eff1ee4247aeb9849d8c4b8f0c92b886763e1c1d4d31ac9c7eb9062d8be450ef0a

Download Submit
memory/2528-47-0x0000000003990000-0x0000000003D7B000-memory.dmp

Filesize
3.9MB

Download
memory/2528-44-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2528-42-0x0000000003990000-0x0000000003D7B000-memory.dmp

Filesize
3.9MB

Download
memory/2528-1-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2528-72-0x0000000003990000-0x0000000003D7B000-memory.dmp

Filesize
3.9MB

Download
memory/2716-48-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2716-63-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2716-61-0x0000000002D30000-0x000000000311B000-memory.dmp

Filesize
3.9MB

Download
memory/2716-51-0x0000000002C30000-0x000000000301B000-memory.dmp

Filesize
3.9MB

Download
memory/2724-75-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2724-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2724-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2724-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2860-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads