darkcomet | 887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f

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
25/02/2025, 00:11

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General

Target

887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe
Size

574KB
MD5

a250f6aedfdebb04efee63aa3fd5cd99
SHA1

d20610ca9c26d4a14d3e79adc57503f14aedf924
SHA256

887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f
SHA512

5f074651b7aa3fd126b39b471c2b86c7c2bdf33360ef6b36cc118f33cb6c8313dc96de3bbbbe431012e1c2acf287e6e0d329ade06e22757a080cde7bb4a1e692
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubZ:zFhWAfn22m0eD1GPz8Hdxd

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
2676	Soundcrd.exe
2740	Soundcrd.exe
2236	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe
2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe
2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe
2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe
2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe
2676	Soundcrd.exe
2676	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 2676 set thread context of 2740	2676	Soundcrd.exe	34
PID 2676 set thread context of 2236	2676	Soundcrd.exe	35

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2740-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2740-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2740-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2740-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2740-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2740-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2236-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2740-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2236-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2236-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2740-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2236-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2236-73-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2740-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2740-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2740-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2740-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2740-90-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2740-94-0x0000000000400000-0x00000000004B5000-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	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.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	2236	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2740	Soundcrd.exe
Token: SeSecurityPrivilege	2740	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2740	Soundcrd.exe
Token: SeLoadDriverPrivilege	2740	Soundcrd.exe
Token: SeSystemProfilePrivilege	2740	Soundcrd.exe
Token: SeSystemtimePrivilege	2740	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2740	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2740	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2740	Soundcrd.exe
Token: SeBackupPrivilege	2740	Soundcrd.exe
Token: SeRestorePrivilege	2740	Soundcrd.exe
Token: SeShutdownPrivilege	2740	Soundcrd.exe
Token: SeDebugPrivilege	2740	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2740	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2740	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2740	Soundcrd.exe
Token: SeUndockPrivilege	2740	Soundcrd.exe
Token: SeManageVolumePrivilege	2740	Soundcrd.exe
Token: SeImpersonatePrivilege	2740	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2740	Soundcrd.exe
Token: 33	2740	Soundcrd.exe
Token: 34	2740	Soundcrd.exe
Token: 35	2740	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe
2676	Soundcrd.exe
2236	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2148	2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe	30
PID 2296 wrote to memory of 2148	2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe	30
PID 2296 wrote to memory of 2148	2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe	30
PID 2296 wrote to memory of 2148	2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe	30
PID 2148 wrote to memory of 2220	2148	cmd.exe	32
PID 2148 wrote to memory of 2220	2148	cmd.exe	32
PID 2148 wrote to memory of 2220	2148	cmd.exe	32
PID 2148 wrote to memory of 2220	2148	cmd.exe	32
PID 2296 wrote to memory of 2676	2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe	33
PID 2296 wrote to memory of 2676	2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe	33
PID 2296 wrote to memory of 2676	2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe	33
PID 2296 wrote to memory of 2676	2296	887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe	33
PID 2676 wrote to memory of 2740	2676	Soundcrd.exe	34
PID 2676 wrote to memory of 2740	2676	Soundcrd.exe	34
PID 2676 wrote to memory of 2740	2676	Soundcrd.exe	34
PID 2676 wrote to memory of 2740	2676	Soundcrd.exe	34
PID 2676 wrote to memory of 2740	2676	Soundcrd.exe	34
PID 2676 wrote to memory of 2740	2676	Soundcrd.exe	34
PID 2676 wrote to memory of 2740	2676	Soundcrd.exe	34
PID 2676 wrote to memory of 2740	2676	Soundcrd.exe	34
PID 2676 wrote to memory of 2740	2676	Soundcrd.exe	34
PID 2676 wrote to memory of 2236	2676	Soundcrd.exe	35
PID 2676 wrote to memory of 2236	2676	Soundcrd.exe	35
PID 2676 wrote to memory of 2236	2676	Soundcrd.exe	35
PID 2676 wrote to memory of 2236	2676	Soundcrd.exe	35
PID 2676 wrote to memory of 2236	2676	Soundcrd.exe	35
PID 2676 wrote to memory of 2236	2676	Soundcrd.exe	35
PID 2676 wrote to memory of 2236	2676	Soundcrd.exe	35
PID 2676 wrote to memory of 2236	2676	Soundcrd.exe	35
PID 2676 wrote to memory of 2236	2676	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe
"C:\Users\Admin\AppData\Local\Temp\887818bbbc8b40494907cb1cc3555cee63f5b8c13476f2d2a035170b9a48339f.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\JZhIf.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2148
- - 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:2220
- 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:2676
- - 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:2740
- - 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:2236

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\JZhIf.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
9ca9d83e66c669e8f01ca836ab2632b8

SHA1
10f2f16bf1a4a4a2078982fabe2b9cae30fbc28b

SHA256
672720c20ba8a9cd731a03ed7543fe94b1ac632d46a703d29e34861ba52db154

SHA512
a1a9cc651be8a4ed1f25b2a11207e83b65a9138822dd7ed103544fa3ab734a5a21cf3b7519ee0d03f4f574fe69b65e2ede262472d6c2485ae1a0c688a897908d

Download Submit
memory/2236-73-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2236-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2236-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2236-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2236-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2296-43-0x00000000039C0000-0x0000000003DAA000-memory.dmp

Filesize
3.9MB

Download
memory/2296-2-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2296-44-0x00000000039C0000-0x0000000003DAA000-memory.dmp

Filesize
3.9MB

Download
memory/2296-46-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2676-71-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2676-52-0x00000000029B0000-0x0000000002D9A000-memory.dmp

Filesize
3.9MB

Download
memory/2676-62-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2676-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2740-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2740-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads