darkcomet | 6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2

Analysis

max time kernel
142s
max time network
146s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06-11-2024 09:01

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General

Target

6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe
Size

574KB
MD5

c73aa8b152182c42bc32d530d85fa450
SHA1

d534a33660571c2022a086e2dc0d1ffab6448503
SHA256

6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2
SHA512

26e1cf2ec8bedec3b942cecb343ba41f88ea880a9135f4e2ec33efd96509afd6780d90a06488a09ac180d6a25347b09e711f8923da548f94a7c7193c2397bb1c
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsuby:zFhWAfn22m0eD1GPz8HdxG

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
3004	Soundcrd.exe
2744	Soundcrd.exe
2796	Soundcrd.exe

Loads dropped DLL 5 IoCs

pid	Process
2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe
2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe
2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe
2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe
2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.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-1-5-21-3692679935-4019334568-335155002-1000\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 3004 set thread context of 2744	3004	Soundcrd.exe	34
PID 3004 set thread context of 2796	3004	Soundcrd.exe	35

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2796-59-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2744-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-64-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2744-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2796-58-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2796-54-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2744-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-72-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2744-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-90-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-94-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2744-100-0x0000000000400000-0x00000000004B5000-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	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.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	2796	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2744	Soundcrd.exe
Token: SeSecurityPrivilege	2744	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2744	Soundcrd.exe
Token: SeLoadDriverPrivilege	2744	Soundcrd.exe
Token: SeSystemProfilePrivilege	2744	Soundcrd.exe
Token: SeSystemtimePrivilege	2744	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2744	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2744	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2744	Soundcrd.exe
Token: SeBackupPrivilege	2744	Soundcrd.exe
Token: SeRestorePrivilege	2744	Soundcrd.exe
Token: SeShutdownPrivilege	2744	Soundcrd.exe
Token: SeDebugPrivilege	2744	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2744	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2744	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2744	Soundcrd.exe
Token: SeUndockPrivilege	2744	Soundcrd.exe
Token: SeManageVolumePrivilege	2744	Soundcrd.exe
Token: SeImpersonatePrivilege	2744	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2744	Soundcrd.exe
Token: 33	2744	Soundcrd.exe
Token: 34	2744	Soundcrd.exe
Token: 35	2744	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe
3004	Soundcrd.exe
2796	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 2956	2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe	30
PID 2476 wrote to memory of 2956	2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe	30
PID 2476 wrote to memory of 2956	2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe	30
PID 2476 wrote to memory of 2956	2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe	30
PID 2956 wrote to memory of 2132	2956	cmd.exe	32
PID 2956 wrote to memory of 2132	2956	cmd.exe	32
PID 2956 wrote to memory of 2132	2956	cmd.exe	32
PID 2956 wrote to memory of 2132	2956	cmd.exe	32
PID 2476 wrote to memory of 3004	2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe	33
PID 2476 wrote to memory of 3004	2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe	33
PID 2476 wrote to memory of 3004	2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe	33
PID 2476 wrote to memory of 3004	2476	6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe	33
PID 3004 wrote to memory of 2744	3004	Soundcrd.exe	34
PID 3004 wrote to memory of 2744	3004	Soundcrd.exe	34
PID 3004 wrote to memory of 2744	3004	Soundcrd.exe	34
PID 3004 wrote to memory of 2744	3004	Soundcrd.exe	34
PID 3004 wrote to memory of 2744	3004	Soundcrd.exe	34
PID 3004 wrote to memory of 2744	3004	Soundcrd.exe	34
PID 3004 wrote to memory of 2744	3004	Soundcrd.exe	34
PID 3004 wrote to memory of 2744	3004	Soundcrd.exe	34
PID 3004 wrote to memory of 2744	3004	Soundcrd.exe	34
PID 3004 wrote to memory of 2796	3004	Soundcrd.exe	35
PID 3004 wrote to memory of 2796	3004	Soundcrd.exe	35
PID 3004 wrote to memory of 2796	3004	Soundcrd.exe	35
PID 3004 wrote to memory of 2796	3004	Soundcrd.exe	35
PID 3004 wrote to memory of 2796	3004	Soundcrd.exe	35
PID 3004 wrote to memory of 2796	3004	Soundcrd.exe	35
PID 3004 wrote to memory of 2796	3004	Soundcrd.exe	35
PID 3004 wrote to memory of 2796	3004	Soundcrd.exe	35
PID 3004 wrote to memory of 2796	3004	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe
"C:\Users\Admin\AppData\Local\Temp\6b4b72e9d645f6e2100a216a586d67b21693d70628ad696e0b69badd289b21d2N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\jZUDo.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2956
- - 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:2132
- C:\Users\Admin\AppData\Roaming\Soundcrd.exe
  "C:\Users\Admin\AppData\Roaming\Soundcrd.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3004
- - 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:2744
- - 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:2796

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\jZUDo.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
d5d9df3064241dc175b55055163cc8c0

SHA1
764a8453fb1364d7f91f9ee7b78c2eb8e0a7d06f

SHA256
fb83b4b6a9ce6c81cde284a3e1a33a542c589a4b7fa1699902563e2ec3242373

SHA512
f349e8d324cad3f4b59637851cd5b019c2f0609f08518ba7f79b07a05053508a7dc8c721eff7e174598fc15c081092c062402c87fc8e8f8480953d15cfd13744

Download Submit
memory/2476-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2476-44-0x0000000003550000-0x000000000393A000-memory.dmp

Filesize
3.9MB

Download
memory/2476-71-0x0000000003550000-0x000000000393A000-memory.dmp

Filesize
3.9MB

Download
memory/2476-45-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2476-46-0x0000000003550000-0x000000000393A000-memory.dmp

Filesize
3.9MB

Download
memory/2744-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-100-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2744-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-64-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2796-72-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2796-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2796-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2796-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2796-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3004-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/3004-56-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads