darkcomet | d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40

Analysis

max time kernel
141s
max time network
144s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
05-11-2024 04:29

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General

Target

d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe
Size

574KB
MD5

f1fd5061244fa6098246e16dc2229c74
SHA1

fb914c5f6cd90bc3ea926b9b8345f18a955d0fa9
SHA256

d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40
SHA512

6c11a720ed0fbbb5553644bf962f6691b0f30a6ddf0a1a9f0b1ffb3a496f9c49543cb81669a14f90a994946ce9e842ede2f1d3c0f4fe2c090089dc0a122a6e00
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsubb: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
2796	Soundcrd.exe
2832	Soundcrd.exe
2244	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe
2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe
2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe
2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe
2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe
2796	Soundcrd.exe
2796	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 2796 set thread context of 2832	2796	Soundcrd.exe	34
PID 2796 set thread context of 2244	2796	Soundcrd.exe	35

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2832-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2832-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2832-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2832-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2832-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2244-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2832-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2244-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2832-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2244-58-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2832-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2832-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2244-76-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2832-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2832-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2832-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2832-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2832-97-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2832-101-0x0000000000400000-0x00000000004B5000-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	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.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	2244	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2832	Soundcrd.exe
Token: SeSecurityPrivilege	2832	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2832	Soundcrd.exe
Token: SeLoadDriverPrivilege	2832	Soundcrd.exe
Token: SeSystemProfilePrivilege	2832	Soundcrd.exe
Token: SeSystemtimePrivilege	2832	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2832	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2832	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2832	Soundcrd.exe
Token: SeBackupPrivilege	2832	Soundcrd.exe
Token: SeRestorePrivilege	2832	Soundcrd.exe
Token: SeShutdownPrivilege	2832	Soundcrd.exe
Token: SeDebugPrivilege	2832	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2832	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2832	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2832	Soundcrd.exe
Token: SeUndockPrivilege	2832	Soundcrd.exe
Token: SeManageVolumePrivilege	2832	Soundcrd.exe
Token: SeImpersonatePrivilege	2832	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2832	Soundcrd.exe
Token: 33	2832	Soundcrd.exe
Token: 34	2832	Soundcrd.exe
Token: 35	2832	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe
2796	Soundcrd.exe
2244	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 2820	2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe	30
PID 2464 wrote to memory of 2820	2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe	30
PID 2464 wrote to memory of 2820	2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe	30
PID 2464 wrote to memory of 2820	2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe	30
PID 2820 wrote to memory of 2768	2820	cmd.exe	32
PID 2820 wrote to memory of 2768	2820	cmd.exe	32
PID 2820 wrote to memory of 2768	2820	cmd.exe	32
PID 2820 wrote to memory of 2768	2820	cmd.exe	32
PID 2464 wrote to memory of 2796	2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe	33
PID 2464 wrote to memory of 2796	2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe	33
PID 2464 wrote to memory of 2796	2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe	33
PID 2464 wrote to memory of 2796	2464	d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe	33
PID 2796 wrote to memory of 2832	2796	Soundcrd.exe	34
PID 2796 wrote to memory of 2832	2796	Soundcrd.exe	34
PID 2796 wrote to memory of 2832	2796	Soundcrd.exe	34
PID 2796 wrote to memory of 2832	2796	Soundcrd.exe	34
PID 2796 wrote to memory of 2832	2796	Soundcrd.exe	34
PID 2796 wrote to memory of 2832	2796	Soundcrd.exe	34
PID 2796 wrote to memory of 2832	2796	Soundcrd.exe	34
PID 2796 wrote to memory of 2832	2796	Soundcrd.exe	34
PID 2796 wrote to memory of 2832	2796	Soundcrd.exe	34
PID 2796 wrote to memory of 2244	2796	Soundcrd.exe	35
PID 2796 wrote to memory of 2244	2796	Soundcrd.exe	35
PID 2796 wrote to memory of 2244	2796	Soundcrd.exe	35
PID 2796 wrote to memory of 2244	2796	Soundcrd.exe	35
PID 2796 wrote to memory of 2244	2796	Soundcrd.exe	35
PID 2796 wrote to memory of 2244	2796	Soundcrd.exe	35
PID 2796 wrote to memory of 2244	2796	Soundcrd.exe	35
PID 2796 wrote to memory of 2244	2796	Soundcrd.exe	35
PID 2796 wrote to memory of 2244	2796	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe
"C:\Users\Admin\AppData\Local\Temp\d94c952ebbb0b9f262f468e0fd80785bbcc5b2ce938606a594d434b3a086fe40.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\BQucP.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2820
- - 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:2768
- 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:2796
- - 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:2832
- - 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:2244

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\BQucP.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
6219d886f79b51147281dc6d74a93299

SHA1
b560e4874081264857bc882e60b4fc950d0692d1

SHA256
74cc6b8b7e881ca8282ad4d8815755942a6d7665170a57fabc93a2d1ef4dcb44

SHA512
f5f86623c68c83451408fcab33d58d86479ed5eb90c4bf490d5a6395e35e9c28ce6b7b0638915b6cbc928f2b2d474e80ec80fbad843eb61ae5b0a459387a571e

Download Submit
memory/2244-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2244-76-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2244-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2244-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2464-72-0x0000000003A00000-0x0000000003DEA000-memory.dmp

Filesize
3.9MB

Download
memory/2464-47-0x0000000003A00000-0x0000000003DEA000-memory.dmp

Filesize
3.9MB

Download
memory/2464-2-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2464-43-0x0000000003A00000-0x0000000003DEA000-memory.dmp

Filesize
3.9MB

Download
memory/2464-44-0x0000000003A00000-0x0000000003DEA000-memory.dmp

Filesize
3.9MB

Download
memory/2464-46-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2796-66-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2796-64-0x0000000002AD0000-0x0000000002EBA000-memory.dmp

Filesize
3.9MB

Download
memory/2796-48-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2832-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-97-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2832-101-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads