darkcomet | 0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031b

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-10-2024 07:18

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General

Target

0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe
Size

3.9MB
MD5

983469de41c17b3ad61f522ff1c18dd0
SHA1

4b512352d95521b74568ff6ee95d86e686dd2679
SHA256

0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031b
SHA512

ca40aaca2bddf5ac36a8b20976805fe4be2183897648b2070531ee6ac8c45ea74750e5503649fd852ccfe84f2c996fcb22a0a9afae157c87b62973371ca093a9
SSDEEP

98304:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cw:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBw

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

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
2256	Soundcrd.exe
3000	Soundcrd.exe
2904	Soundcrd.exe

Loads dropped DLL 7 IoCs

Processes:

0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exeSoundcrd.exe

pid	Process
2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe
2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe
2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe
2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe
2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe
2256	Soundcrd.exe
2256	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mcrosoftt = "C:\\Users\\Admin\\AppData\\Roaming\\Soundcrd.exe"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Soundcrd.exe

description	pid	Process	procid_target
PID 2256 set thread context of 3000	2256	Soundcrd.exe	35
PID 2256 set thread context of 2904	2256	Soundcrd.exe	36

UPX packed file 19 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/3000-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2904-59-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2904-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2904-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/3000-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2904-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/3000-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3000-86-0x0000000000400000-0x00000000004B5000-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:

Soundcrd.exe0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.execmd.exereg.exeSoundcrd.exeSoundcrd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.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

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\Identifier	Soundcrd.exe
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

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

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

Soundcrd.exeSoundcrd.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3000	Soundcrd.exe
Token: SeSecurityPrivilege	3000	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	3000	Soundcrd.exe
Token: SeLoadDriverPrivilege	3000	Soundcrd.exe
Token: SeSystemProfilePrivilege	3000	Soundcrd.exe
Token: SeSystemtimePrivilege	3000	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	3000	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	3000	Soundcrd.exe
Token: SeCreatePagefilePrivilege	3000	Soundcrd.exe
Token: SeBackupPrivilege	3000	Soundcrd.exe
Token: SeRestorePrivilege	3000	Soundcrd.exe
Token: SeShutdownPrivilege	3000	Soundcrd.exe
Token: SeDebugPrivilege	3000	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	3000	Soundcrd.exe
Token: SeChangeNotifyPrivilege	3000	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	3000	Soundcrd.exe
Token: SeUndockPrivilege	3000	Soundcrd.exe
Token: SeManageVolumePrivilege	3000	Soundcrd.exe
Token: SeImpersonatePrivilege	3000	Soundcrd.exe
Token: SeCreateGlobalPrivilege	3000	Soundcrd.exe
Token: 33	3000	Soundcrd.exe
Token: 34	3000	Soundcrd.exe
Token: 35	3000	Soundcrd.exe
Token: SeDebugPrivilege	2904	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exeSoundcrd.exeSoundcrd.exe

pid	Process
2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe
2256	Soundcrd.exe
2904	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.execmd.exeSoundcrd.exe

description	pid	Process	procid_target
PID 2112 wrote to memory of 1656	2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe	31
PID 2112 wrote to memory of 1656	2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe	31
PID 2112 wrote to memory of 1656	2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe	31
PID 2112 wrote to memory of 1656	2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe	31
PID 1656 wrote to memory of 2980	1656	cmd.exe	33
PID 1656 wrote to memory of 2980	1656	cmd.exe	33
PID 1656 wrote to memory of 2980	1656	cmd.exe	33
PID 1656 wrote to memory of 2980	1656	cmd.exe	33
PID 2112 wrote to memory of 2256	2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe	34
PID 2112 wrote to memory of 2256	2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe	34
PID 2112 wrote to memory of 2256	2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe	34
PID 2112 wrote to memory of 2256	2112	0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe	34
PID 2256 wrote to memory of 3000	2256	Soundcrd.exe	35
PID 2256 wrote to memory of 3000	2256	Soundcrd.exe	35
PID 2256 wrote to memory of 3000	2256	Soundcrd.exe	35
PID 2256 wrote to memory of 3000	2256	Soundcrd.exe	35
PID 2256 wrote to memory of 3000	2256	Soundcrd.exe	35
PID 2256 wrote to memory of 3000	2256	Soundcrd.exe	35
PID 2256 wrote to memory of 3000	2256	Soundcrd.exe	35
PID 2256 wrote to memory of 3000	2256	Soundcrd.exe	35
PID 2256 wrote to memory of 3000	2256	Soundcrd.exe	35
PID 2256 wrote to memory of 2904	2256	Soundcrd.exe	36
PID 2256 wrote to memory of 2904	2256	Soundcrd.exe	36
PID 2256 wrote to memory of 2904	2256	Soundcrd.exe	36
PID 2256 wrote to memory of 2904	2256	Soundcrd.exe	36
PID 2256 wrote to memory of 2904	2256	Soundcrd.exe	36
PID 2256 wrote to memory of 2904	2256	Soundcrd.exe	36
PID 2256 wrote to memory of 2904	2256	Soundcrd.exe	36
PID 2256 wrote to memory of 2904	2256	Soundcrd.exe	36
PID 2256 wrote to memory of 2904	2256	Soundcrd.exe	36

C:\Users\Admin\AppData\Local\Temp\0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe
"C:\Users\Admin\AppData\Local\Temp\0fdeeb6d47ef5af159cc195c3c8530e70c113b4d9bb5ecadbb06d6ac8d41031bN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\rNlHX.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1656
- - 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:2980
- 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:2256
- - 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:3000
- - 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:2904

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
f1fc0cf00f436148633e42bb9185b14c

SHA1
f38ea033f5d52396eba5eb6e19ff3c4fde02e7fa

SHA256
67a62acf41ae6dae6ef9f2a33f0194098392ce526e273d8a9d4f61c45600b682

SHA512
721d1030029ab9f28a90772cb83636274e106fe4f8c36addcf134aac2fc9230bfc60382f1ab480354a81f1e7b5d2e46256bff55ead7a3eb622db00efb032fbb1

Download Submit
memory/2112-0-0x0000000000400000-0x00000000007E8000-memory.dmp

Filesize
3.9MB

Download
memory/2904-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2904-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2904-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2904-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3000-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-48-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3000-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download