darkcomet | bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812

Analysis

max time kernel
111s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24/02/2025, 18:24

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General

Target

bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe
Size

574KB
MD5

517486e95bdd8edae32d2c5910cb4220
SHA1

03b791914f609f6dfed43f726944b1b8ec733624
SHA256

bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812
SHA512

01df0e58d56edce74f2c526b392bf6cf6024f3b3f84f3c70675a242b30c6de01b64eb4f749732709898e7d65d44b61d8034de34948b45951bed8ac04708deda6
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsubj:zFhWAfn22m0eD1GPz8Hdxv

Score

10^/10

darkcomet whale discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Whale

ygo.no-ip.info:1604

Mutex

DC_MUTEX-KF2Q2MJ

Attributes

gencode
YxpcQq6jqoiB
install
false
offline_keylogger
false
persistence
false

rc4.plain

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
3044	Soundcrd.exe
1268	Soundcrd.exe
580	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe
2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe
2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe
2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe
2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe
3044	Soundcrd.exe
3044	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-1-5-21-3533259084-2542256011-65585152-1000\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 3044 set thread context of 1268	3044	Soundcrd.exe	34
PID 3044 set thread context of 580	3044	Soundcrd.exe	35

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1268-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/580-68-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/580-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/580-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1268-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/580-76-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1268-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1268-95-0x0000000000400000-0x00000000004B5000-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	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.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	1268	Soundcrd.exe
Token: SeSecurityPrivilege	1268	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	1268	Soundcrd.exe
Token: SeLoadDriverPrivilege	1268	Soundcrd.exe
Token: SeSystemProfilePrivilege	1268	Soundcrd.exe
Token: SeSystemtimePrivilege	1268	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	1268	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	1268	Soundcrd.exe
Token: SeCreatePagefilePrivilege	1268	Soundcrd.exe
Token: SeBackupPrivilege	1268	Soundcrd.exe
Token: SeRestorePrivilege	1268	Soundcrd.exe
Token: SeShutdownPrivilege	1268	Soundcrd.exe
Token: SeDebugPrivilege	1268	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	1268	Soundcrd.exe
Token: SeChangeNotifyPrivilege	1268	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	1268	Soundcrd.exe
Token: SeUndockPrivilege	1268	Soundcrd.exe
Token: SeManageVolumePrivilege	1268	Soundcrd.exe
Token: SeImpersonatePrivilege	1268	Soundcrd.exe
Token: SeCreateGlobalPrivilege	1268	Soundcrd.exe
Token: 33	1268	Soundcrd.exe
Token: 34	1268	Soundcrd.exe
Token: 35	1268	Soundcrd.exe
Token: SeDebugPrivilege	580	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe
3044	Soundcrd.exe
580	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 2788	2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe	30
PID 2624 wrote to memory of 2788	2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe	30
PID 2624 wrote to memory of 2788	2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe	30
PID 2624 wrote to memory of 2788	2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe	30
PID 2788 wrote to memory of 2632	2788	cmd.exe	32
PID 2788 wrote to memory of 2632	2788	cmd.exe	32
PID 2788 wrote to memory of 2632	2788	cmd.exe	32
PID 2788 wrote to memory of 2632	2788	cmd.exe	32
PID 2624 wrote to memory of 3044	2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe	33
PID 2624 wrote to memory of 3044	2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe	33
PID 2624 wrote to memory of 3044	2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe	33
PID 2624 wrote to memory of 3044	2624	bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe	33
PID 3044 wrote to memory of 1268	3044	Soundcrd.exe	34
PID 3044 wrote to memory of 1268	3044	Soundcrd.exe	34
PID 3044 wrote to memory of 1268	3044	Soundcrd.exe	34
PID 3044 wrote to memory of 1268	3044	Soundcrd.exe	34
PID 3044 wrote to memory of 1268	3044	Soundcrd.exe	34
PID 3044 wrote to memory of 1268	3044	Soundcrd.exe	34
PID 3044 wrote to memory of 1268	3044	Soundcrd.exe	34
PID 3044 wrote to memory of 1268	3044	Soundcrd.exe	34
PID 3044 wrote to memory of 1268	3044	Soundcrd.exe	34
PID 3044 wrote to memory of 580	3044	Soundcrd.exe	35
PID 3044 wrote to memory of 580	3044	Soundcrd.exe	35
PID 3044 wrote to memory of 580	3044	Soundcrd.exe	35
PID 3044 wrote to memory of 580	3044	Soundcrd.exe	35
PID 3044 wrote to memory of 580	3044	Soundcrd.exe	35
PID 3044 wrote to memory of 580	3044	Soundcrd.exe	35
PID 3044 wrote to memory of 580	3044	Soundcrd.exe	35
PID 3044 wrote to memory of 580	3044	Soundcrd.exe	35
PID 3044 wrote to memory of 580	3044	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe
"C:\Users\Admin\AppData\Local\Temp\bdc60a838ace88e943a9e6d2167fef6d7d68daff10122a20672c837d1a1ab812N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\XdRiQ.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2788
- - 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:2632
- 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:3044
- - 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:1268
- - 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:580

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\XdRiQ.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
7eaddd6c1a5437dd57fb303610edaebc

SHA1
46b1416582bb2ba4425ee851ab345292db25d9d1

SHA256
8d33950ab6280538fb4ba54e2106b890cecce8bd5dfee62767a2d670d9f4d24d

SHA512
87670f73b4f65ef6b664014e9cf3dce935383bd5cf802617fcd298689af779ce42081217d903cebacb133b96d89a14ecf215ec5dff2dc3f6d0ee2857d54c56ba

Download Submit
memory/580-68-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/580-76-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/580-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/580-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1268-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1268-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2624-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2624-44-0x0000000003860000-0x0000000003C4A000-memory.dmp

Filesize
3.9MB

Download
memory/2624-48-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2624-43-0x0000000003860000-0x0000000003C4A000-memory.dmp

Filesize
3.9MB

Download
memory/2624-42-0x0000000003860000-0x0000000003C4A000-memory.dmp

Filesize
3.9MB

Download
memory/3044-59-0x0000000002CE0000-0x00000000030CA000-memory.dmp

Filesize
3.9MB

Download
memory/3044-46-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/3044-64-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads