darkcomet | a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/10/2024, 04:47

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General

Target

a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe
Size

574KB
MD5

17b938f1f6d175b5b943a07fbaa75e40
SHA1

33742aeee0d9f729b5059294728d707968dd7ee5
SHA256

a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046
SHA512

501b97bb9a96b5a13086a35a96617ffdd0a1af5ee38486191dfa9ce3c4c210b375e6df1b74fe455e0c72d8a627e579c3ab90e96da52a1c3d6eea87bc2f196f57
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsub7:zFhWAfn22m0eD1GPz8Hdxv

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
2736	Soundcrd.exe
2616	Soundcrd.exe
3032	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe
2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe
2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe
2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe
2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe
2736	Soundcrd.exe
2736	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-1-5-21-3290804112-2823094203-3137964600-1000\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 2736 set thread context of 2616	2736	Soundcrd.exe	35
PID 2736 set thread context of 3032	2736	Soundcrd.exe	36

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2616-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3032-55-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2616-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3032-63-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2616-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3032-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2616-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3032-72-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2616-77-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-85-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-89-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-93-0x0000000000400000-0x00000000004B5000-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	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	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	3032	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2616	Soundcrd.exe
Token: SeSecurityPrivilege	2616	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2616	Soundcrd.exe
Token: SeLoadDriverPrivilege	2616	Soundcrd.exe
Token: SeSystemProfilePrivilege	2616	Soundcrd.exe
Token: SeSystemtimePrivilege	2616	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2616	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2616	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2616	Soundcrd.exe
Token: SeBackupPrivilege	2616	Soundcrd.exe
Token: SeRestorePrivilege	2616	Soundcrd.exe
Token: SeShutdownPrivilege	2616	Soundcrd.exe
Token: SeDebugPrivilege	2616	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2616	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2616	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2616	Soundcrd.exe
Token: SeUndockPrivilege	2616	Soundcrd.exe
Token: SeManageVolumePrivilege	2616	Soundcrd.exe
Token: SeImpersonatePrivilege	2616	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2616	Soundcrd.exe
Token: 33	2616	Soundcrd.exe
Token: 34	2616	Soundcrd.exe
Token: 35	2616	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe
2736	Soundcrd.exe
3032	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2960	2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe	31
PID 2672 wrote to memory of 2960	2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe	31
PID 2672 wrote to memory of 2960	2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe	31
PID 2672 wrote to memory of 2960	2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe	31
PID 2960 wrote to memory of 2732	2960	cmd.exe	33
PID 2960 wrote to memory of 2732	2960	cmd.exe	33
PID 2960 wrote to memory of 2732	2960	cmd.exe	33
PID 2960 wrote to memory of 2732	2960	cmd.exe	33
PID 2672 wrote to memory of 2736	2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe	34
PID 2672 wrote to memory of 2736	2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe	34
PID 2672 wrote to memory of 2736	2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe	34
PID 2672 wrote to memory of 2736	2672	a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe	34
PID 2736 wrote to memory of 2616	2736	Soundcrd.exe	35
PID 2736 wrote to memory of 2616	2736	Soundcrd.exe	35
PID 2736 wrote to memory of 2616	2736	Soundcrd.exe	35
PID 2736 wrote to memory of 2616	2736	Soundcrd.exe	35
PID 2736 wrote to memory of 2616	2736	Soundcrd.exe	35
PID 2736 wrote to memory of 2616	2736	Soundcrd.exe	35
PID 2736 wrote to memory of 2616	2736	Soundcrd.exe	35
PID 2736 wrote to memory of 2616	2736	Soundcrd.exe	35
PID 2736 wrote to memory of 2616	2736	Soundcrd.exe	35
PID 2736 wrote to memory of 3032	2736	Soundcrd.exe	36
PID 2736 wrote to memory of 3032	2736	Soundcrd.exe	36
PID 2736 wrote to memory of 3032	2736	Soundcrd.exe	36
PID 2736 wrote to memory of 3032	2736	Soundcrd.exe	36
PID 2736 wrote to memory of 3032	2736	Soundcrd.exe	36
PID 2736 wrote to memory of 3032	2736	Soundcrd.exe	36
PID 2736 wrote to memory of 3032	2736	Soundcrd.exe	36
PID 2736 wrote to memory of 3032	2736	Soundcrd.exe	36
PID 2736 wrote to memory of 3032	2736	Soundcrd.exe	36

C:\Users\Admin\AppData\Local\Temp\a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe
"C:\Users\Admin\AppData\Local\Temp\a0983b7dc93e7012ccdec3b47a34bcd934fef3047dc58305a5a42fcd125d7046N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\jZhEU.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2960
- - 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:2732
- 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:2736
- - 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:2616
- - 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:3032

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\jZhEU.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
8197c76fa47c898f25fc69429d3afa82

SHA1
b8781556f78ea392705b5ab1bb1585b8f3a1efc9

SHA256
c85c0b5576782c8bac0a4995ab8a36516e01176a1077f7c93f869ddd84456b83

SHA512
db87517098ed36502345286ba3d1ff99e85443b314e1069f0f791d0d2969bbc3425a85e415aa1d6c26c7e89c4dacac9ec3c1abbecd72ac428f2367c306429d53

Download Submit
memory/2616-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-93-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-89-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2616-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2672-44-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2672-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2672-46-0x0000000003AC0000-0x0000000003EAA000-memory.dmp

Filesize
3.9MB

Download
memory/2736-48-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2736-58-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2736-51-0x0000000002C40000-0x000000000302A000-memory.dmp

Filesize
3.9MB

Download
memory/3032-72-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3032-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3032-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3032-55-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads