darkcomet | 9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca

Analysis

max time kernel
149s
max time network
142s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
18/12/2024, 02:34

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General

Target

9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe
Size

3.9MB
MD5

07cf826ac1cad1f4db67698daa91a172
SHA1

50fbe8aa011a1b16d43d578ba553e2ae8458be4a
SHA256

9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca
SHA512

e853921a12010f8c08e85cd3b4b2234d03a18685bd748f50652e4b551d47115e93b2087ec2c8cd80288afca2c2098786e89d3b02fad467442208fb7fb9774e22
SSDEEP

98304:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5CN:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBN

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
2848	Soundcrd.exe
1964	Soundcrd.exe
2352	Soundcrd.exe

Loads dropped DLL 6 IoCs

pid	Process
2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe
2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe
2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe
2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe
2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe
2848	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-1-5-21-2703099537-420551529-3771253338-1000\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 2848 set thread context of 1964	2848	Soundcrd.exe	34
PID 2848 set thread context of 2352	2848	Soundcrd.exe	35

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1964-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2352-51-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1964-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2352-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2352-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2352-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1964-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-75-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1964-93-0x0000000000400000-0x00000000004B5000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.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	1964	Soundcrd.exe
Token: SeSecurityPrivilege	1964	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	1964	Soundcrd.exe
Token: SeLoadDriverPrivilege	1964	Soundcrd.exe
Token: SeSystemProfilePrivilege	1964	Soundcrd.exe
Token: SeSystemtimePrivilege	1964	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	1964	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	1964	Soundcrd.exe
Token: SeCreatePagefilePrivilege	1964	Soundcrd.exe
Token: SeBackupPrivilege	1964	Soundcrd.exe
Token: SeRestorePrivilege	1964	Soundcrd.exe
Token: SeShutdownPrivilege	1964	Soundcrd.exe
Token: SeDebugPrivilege	1964	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	1964	Soundcrd.exe
Token: SeChangeNotifyPrivilege	1964	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	1964	Soundcrd.exe
Token: SeUndockPrivilege	1964	Soundcrd.exe
Token: SeManageVolumePrivilege	1964	Soundcrd.exe
Token: SeImpersonatePrivilege	1964	Soundcrd.exe
Token: SeCreateGlobalPrivilege	1964	Soundcrd.exe
Token: 33	1964	Soundcrd.exe
Token: 34	1964	Soundcrd.exe
Token: 35	1964	Soundcrd.exe
Token: SeDebugPrivilege	2352	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe
2848	Soundcrd.exe
2352	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 2268	2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe	30
PID 2076 wrote to memory of 2268	2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe	30
PID 2076 wrote to memory of 2268	2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe	30
PID 2076 wrote to memory of 2268	2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe	30
PID 2268 wrote to memory of 2796	2268	cmd.exe	32
PID 2268 wrote to memory of 2796	2268	cmd.exe	32
PID 2268 wrote to memory of 2796	2268	cmd.exe	32
PID 2268 wrote to memory of 2796	2268	cmd.exe	32
PID 2076 wrote to memory of 2848	2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe	33
PID 2076 wrote to memory of 2848	2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe	33
PID 2076 wrote to memory of 2848	2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe	33
PID 2076 wrote to memory of 2848	2076	9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe	33
PID 2848 wrote to memory of 1964	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 1964	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 1964	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 1964	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 1964	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 1964	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 1964	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 1964	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 1964	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 2352	2848	Soundcrd.exe	35
PID 2848 wrote to memory of 2352	2848	Soundcrd.exe	35
PID 2848 wrote to memory of 2352	2848	Soundcrd.exe	35
PID 2848 wrote to memory of 2352	2848	Soundcrd.exe	35
PID 2848 wrote to memory of 2352	2848	Soundcrd.exe	35
PID 2848 wrote to memory of 2352	2848	Soundcrd.exe	35
PID 2848 wrote to memory of 2352	2848	Soundcrd.exe	35
PID 2848 wrote to memory of 2352	2848	Soundcrd.exe	35
PID 2848 wrote to memory of 2352	2848	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe
"C:\Users\Admin\AppData\Local\Temp\9c1f0776ade04409c0365b3d34ac123f4150f61688d8b4e3505c59257092c7ca.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\OtzNr.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2268
- - 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:2796
- 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:2848
- - 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:1964
- - 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:2352

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\OtzNr.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
14be57194e6e2040212741e78c7d8ba7

SHA1
2770167d9e1e0891d07a6aa293d3ee4d5eaaec5a

SHA256
123940737954512cc4e934f3c5aa5235c2ec0b8888ff21424daa8f88b88c3ce4

SHA512
f455f7497c4ce870a07194cc3279c2015b9c1f68fbbbf6feefdc67a147a14b47bc1a0959e09016cbbcf60539373e28f179baea9d44e3fbe1121b994b761ba50c

Download Submit
memory/1964-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-48-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-93-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1964-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2076-0-0x0000000000400000-0x00000000007E8000-memory.dmp

Filesize
3.9MB

Download
memory/2352-51-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2352-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2352-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2352-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads