darkcomet | fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422

Analysis

max time kernel
141s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14/10/2024, 06:09

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General

Target

fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe
Size

574KB
MD5

a9383ddbc0f17b248da29860b552a93a
SHA1

d236a50af23f065e6c668c65c7fa8ea025300e77
SHA256

fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422
SHA512

7e8861935603ebd9a8d950c01a82e6c3691a63ff7e040accdd3942525c2e5e16712c497679f004cf674e760f250cccd74100b43ba6b0e8e817dfbf64a7c70cc8
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubO:zFhWAfn22m0eD1GPz8Hdx6

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

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

Executes dropped EXE 3 IoCs

pid	Process
2268	Soundcrd.exe
2896	Soundcrd.exe
3012	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe
1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe
1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe
1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe
1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe
2268	Soundcrd.exe
2268	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-1-5-21-3533259084-2542256011-65585152-1000\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 2268 set thread context of 2896	2268	Soundcrd.exe	34
PID 2268 set thread context of 3012	2268	Soundcrd.exe	35

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3012-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2896-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3012-64-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/3012-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2896-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3012-76-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2896-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-95-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-99-0x0000000000400000-0x00000000004B5000-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	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.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	3012	Soundcrd.exe
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

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe
2268	Soundcrd.exe
3012	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2060	1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe	30
PID 1732 wrote to memory of 2060	1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe	30
PID 1732 wrote to memory of 2060	1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe	30
PID 1732 wrote to memory of 2060	1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe	30
PID 2060 wrote to memory of 3000	2060	cmd.exe	32
PID 2060 wrote to memory of 3000	2060	cmd.exe	32
PID 2060 wrote to memory of 3000	2060	cmd.exe	32
PID 2060 wrote to memory of 3000	2060	cmd.exe	32
PID 1732 wrote to memory of 2268	1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe	33
PID 1732 wrote to memory of 2268	1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe	33
PID 1732 wrote to memory of 2268	1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe	33
PID 1732 wrote to memory of 2268	1732	fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe	33
PID 2268 wrote to memory of 2896	2268	Soundcrd.exe	34
PID 2268 wrote to memory of 2896	2268	Soundcrd.exe	34
PID 2268 wrote to memory of 2896	2268	Soundcrd.exe	34
PID 2268 wrote to memory of 2896	2268	Soundcrd.exe	34
PID 2268 wrote to memory of 2896	2268	Soundcrd.exe	34
PID 2268 wrote to memory of 2896	2268	Soundcrd.exe	34
PID 2268 wrote to memory of 2896	2268	Soundcrd.exe	34
PID 2268 wrote to memory of 2896	2268	Soundcrd.exe	34
PID 2268 wrote to memory of 2896	2268	Soundcrd.exe	34
PID 2268 wrote to memory of 3012	2268	Soundcrd.exe	35
PID 2268 wrote to memory of 3012	2268	Soundcrd.exe	35
PID 2268 wrote to memory of 3012	2268	Soundcrd.exe	35
PID 2268 wrote to memory of 3012	2268	Soundcrd.exe	35
PID 2268 wrote to memory of 3012	2268	Soundcrd.exe	35
PID 2268 wrote to memory of 3012	2268	Soundcrd.exe	35
PID 2268 wrote to memory of 3012	2268	Soundcrd.exe	35
PID 2268 wrote to memory of 3012	2268	Soundcrd.exe	35
PID 2268 wrote to memory of 3012	2268	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe
"C:\Users\Admin\AppData\Local\Temp\fca137a7aa8804db9899aa8f92ed99070575fe4dcaccb10c7fe34d5fef3b9422.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\UaDTp.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2060
- - 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:3000
- 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:2268
- - 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:3012

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\UaDTp.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
eec08b7507a33d1cee7e72879468b26f

SHA1
8457b84479ee14107027ba6d4c7f2d15829a976f

SHA256
37630495f6de37bc44e00015dd94341af26679444c3437fa49523ba46f841f0c

SHA512
73445a7a54cb2f23efa42b3214b0665a25d6ae56703fc70a7ec6a38ebe48550a7bf74d3cc5dba7181f2ec1d46e4597e2604fe22ee439379c1f611f3f58c6e642

Download Submit
memory/1732-44-0x0000000003A50000-0x0000000003E3A000-memory.dmp

Filesize
3.9MB

Download
memory/1732-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/1732-43-0x0000000003A50000-0x0000000003E3A000-memory.dmp

Filesize
3.9MB

Download
memory/1732-46-0x0000000003A50000-0x0000000003E3A000-memory.dmp

Filesize
3.9MB

Download
memory/1732-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2268-68-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2268-48-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2268-59-0x0000000002AB0000-0x0000000002E9A000-memory.dmp

Filesize
3.9MB

Download
memory/2268-60-0x0000000002BB0000-0x0000000002F9A000-memory.dmp

Filesize
3.9MB

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

Filesize
724KB

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

Filesize
724KB

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

Filesize
724KB

Download
memory/2896-99-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

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

Filesize
724KB

Download
memory/2896-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3012-76-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3012-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3012-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3012-64-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads