darkcomet | 5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5

Analysis

max time kernel
111s
max time network
119s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 21:01

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General

Target

5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe
Size

574KB
MD5

f0d5d2eaff412860a20ee3bb28f38864
SHA1

77838c5ea88e77d1f133a03f9dceb89b61f396fa
SHA256

5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5
SHA512

b3fba22eaab5d300839479ff5134c1d3437a48f42679818367180bdb04454592a969779d1a7724518914c36ca10413f823f72a80720b7e39c4b68cfb58799f4d
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubM:zFhWAfn22m0eD1GPz8HdxI

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
2724	Soundcrd.exe
2164	Soundcrd.exe
1164	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe
2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe
2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe
2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe
2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe
2724	Soundcrd.exe
2724	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-1-5-21-1163522206-1469769407-485553996-1000\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 2724 set thread context of 2164	2724	Soundcrd.exe	34
PID 2724 set thread context of 1164	2724	Soundcrd.exe	35

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2164-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1164-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2164-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1164-72-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1164-71-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1164-69-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2164-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1164-78-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2164-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-85-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-89-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-93-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2164-97-0x0000000000400000-0x00000000004B5000-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	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.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

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	2164	Soundcrd.exe
Token: SeSecurityPrivilege	2164	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2164	Soundcrd.exe
Token: SeLoadDriverPrivilege	2164	Soundcrd.exe
Token: SeSystemProfilePrivilege	2164	Soundcrd.exe
Token: SeSystemtimePrivilege	2164	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2164	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2164	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2164	Soundcrd.exe
Token: SeBackupPrivilege	2164	Soundcrd.exe
Token: SeRestorePrivilege	2164	Soundcrd.exe
Token: SeShutdownPrivilege	2164	Soundcrd.exe
Token: SeDebugPrivilege	2164	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2164	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2164	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2164	Soundcrd.exe
Token: SeUndockPrivilege	2164	Soundcrd.exe
Token: SeManageVolumePrivilege	2164	Soundcrd.exe
Token: SeImpersonatePrivilege	2164	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2164	Soundcrd.exe
Token: 33	2164	Soundcrd.exe
Token: 34	2164	Soundcrd.exe
Token: 35	2164	Soundcrd.exe
Token: SeDebugPrivilege	1164	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe
2724	Soundcrd.exe
1164	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2784	2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe	30
PID 2816 wrote to memory of 2784	2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe	30
PID 2816 wrote to memory of 2784	2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe	30
PID 2816 wrote to memory of 2784	2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe	30
PID 2784 wrote to memory of 2156	2784	cmd.exe	32
PID 2784 wrote to memory of 2156	2784	cmd.exe	32
PID 2784 wrote to memory of 2156	2784	cmd.exe	32
PID 2784 wrote to memory of 2156	2784	cmd.exe	32
PID 2816 wrote to memory of 2724	2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe	33
PID 2816 wrote to memory of 2724	2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe	33
PID 2816 wrote to memory of 2724	2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe	33
PID 2816 wrote to memory of 2724	2816	5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe	33
PID 2724 wrote to memory of 2164	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2164	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2164	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2164	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2164	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2164	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2164	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2164	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2164	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 1164	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 1164	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 1164	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 1164	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 1164	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 1164	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 1164	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 1164	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 1164	2724	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe
"C:\Users\Admin\AppData\Local\Temp\5ff3f1dc8602ffe1e546da895ee6d732844f4c63ae79eb36ad93ba829ecd06c5.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\KhFVa.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2784
- - 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:2156
- 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:2724
- - 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:2164
- - 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:1164

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\KhFVa.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
774154323810078d55df3c704e797e4d

SHA1
27e3d1d35e4ef36759fdfaff3a0b0e7a3195aa7e

SHA256
c185cfb41db61e1e57453c847407e9502012f1a4f0d54144c16090978cf68d6a

SHA512
11860ad3680c3dc81eddaeceaf546df33b6761063b804de959b2df9893006fdfdfc551ce44500fe0c0794127523b4dd198c49c430cfd27103ee1bf403298482b

Download Submit
memory/1164-69-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1164-71-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1164-72-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1164-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1164-78-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2164-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-93-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-89-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-97-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2164-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2724-54-0x0000000002CD0000-0x00000000030BA000-memory.dmp

Filesize
3.9MB

Download
memory/2724-62-0x0000000002CD0000-0x00000000030BA000-memory.dmp

Filesize
3.9MB

Download
memory/2724-73-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2724-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2816-49-0x0000000003A10000-0x0000000003DFA000-memory.dmp

Filesize
3.9MB

Download
memory/2816-44-0x0000000003A10000-0x0000000003DFA000-memory.dmp

Filesize
3.9MB

Download
memory/2816-45-0x0000000003A10000-0x0000000003DFA000-memory.dmp

Filesize
3.9MB

Download
memory/2816-43-0x0000000003A10000-0x0000000003DFA000-memory.dmp

Filesize
3.9MB

Download
memory/2816-48-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2816-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads