darkcomet | e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-10-2024 00:48

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General

Target

e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe
Size

574KB
MD5

384e50059921f8846b8f6f0364792210
SHA1

75d73c636a47c6fd7819ad70ed0744d98897a310
SHA256

e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347
SHA512

6f10fe86c08297edd1a5bf71f565eb4f77e32c800263d802c562312e62a37f9a79757baa166c63b4086ef1cd16c378b023e4df28119b592dce6870812323f184
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubE:zFhWAfn22m0eD1GPz8Hdxw

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

Processes:

Soundcrd.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Soundcrd.exe

Executes dropped EXE 3 IoCs

Processes:

Soundcrd.exeSoundcrd.exeSoundcrd.exe

pid	Process
3032	Soundcrd.exe
2600	Soundcrd.exe
2536	Soundcrd.exe

Loads dropped DLL 6 IoCs

Processes:

e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exeSoundcrd.exe

pid	Process
2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe
2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe
2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe
2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe
2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe
3032	Soundcrd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

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

Processes:

Soundcrd.exe

description	pid	Process	procid_target
PID 3032 set thread context of 2600	3032	Soundcrd.exe	34
PID 3032 set thread context of 2536	3032	Soundcrd.exe	35

UPX packed file 19 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2600-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2536-59-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2536-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2600-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2536-63-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2600-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2536-74-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2600-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-95-0x0000000000400000-0x00000000004B5000-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

Processes:

e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.execmd.exereg.exeSoundcrd.exeSoundcrd.exeSoundcrd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.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

Processes:

Soundcrd.exe

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

Processes:

Soundcrd.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	Soundcrd.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

Soundcrd.exeSoundcrd.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2600	Soundcrd.exe
Token: SeSecurityPrivilege	2600	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2600	Soundcrd.exe
Token: SeLoadDriverPrivilege	2600	Soundcrd.exe
Token: SeSystemProfilePrivilege	2600	Soundcrd.exe
Token: SeSystemtimePrivilege	2600	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2600	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2600	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2600	Soundcrd.exe
Token: SeBackupPrivilege	2600	Soundcrd.exe
Token: SeRestorePrivilege	2600	Soundcrd.exe
Token: SeShutdownPrivilege	2600	Soundcrd.exe
Token: SeDebugPrivilege	2600	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2600	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2600	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2600	Soundcrd.exe
Token: SeUndockPrivilege	2600	Soundcrd.exe
Token: SeManageVolumePrivilege	2600	Soundcrd.exe
Token: SeImpersonatePrivilege	2600	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2600	Soundcrd.exe
Token: 33	2600	Soundcrd.exe
Token: 34	2600	Soundcrd.exe
Token: 35	2600	Soundcrd.exe
Token: SeDebugPrivilege	2536	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exeSoundcrd.exeSoundcrd.exe

pid	Process
2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe
3032	Soundcrd.exe
2536	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.execmd.exeSoundcrd.exe

description	pid	Process	procid_target
PID 2932 wrote to memory of 2804	2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe	30
PID 2932 wrote to memory of 2804	2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe	30
PID 2932 wrote to memory of 2804	2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe	30
PID 2932 wrote to memory of 2804	2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe	30
PID 2804 wrote to memory of 2828	2804	cmd.exe	32
PID 2804 wrote to memory of 2828	2804	cmd.exe	32
PID 2804 wrote to memory of 2828	2804	cmd.exe	32
PID 2804 wrote to memory of 2828	2804	cmd.exe	32
PID 2932 wrote to memory of 3032	2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe	33
PID 2932 wrote to memory of 3032	2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe	33
PID 2932 wrote to memory of 3032	2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe	33
PID 2932 wrote to memory of 3032	2932	e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe	33
PID 3032 wrote to memory of 2600	3032	Soundcrd.exe	34
PID 3032 wrote to memory of 2600	3032	Soundcrd.exe	34
PID 3032 wrote to memory of 2600	3032	Soundcrd.exe	34
PID 3032 wrote to memory of 2600	3032	Soundcrd.exe	34
PID 3032 wrote to memory of 2600	3032	Soundcrd.exe	34
PID 3032 wrote to memory of 2600	3032	Soundcrd.exe	34
PID 3032 wrote to memory of 2600	3032	Soundcrd.exe	34
PID 3032 wrote to memory of 2600	3032	Soundcrd.exe	34
PID 3032 wrote to memory of 2600	3032	Soundcrd.exe	34
PID 3032 wrote to memory of 2536	3032	Soundcrd.exe	35
PID 3032 wrote to memory of 2536	3032	Soundcrd.exe	35
PID 3032 wrote to memory of 2536	3032	Soundcrd.exe	35
PID 3032 wrote to memory of 2536	3032	Soundcrd.exe	35
PID 3032 wrote to memory of 2536	3032	Soundcrd.exe	35
PID 3032 wrote to memory of 2536	3032	Soundcrd.exe	35
PID 3032 wrote to memory of 2536	3032	Soundcrd.exe	35
PID 3032 wrote to memory of 2536	3032	Soundcrd.exe	35
PID 3032 wrote to memory of 2536	3032	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe
"C:\Users\Admin\AppData\Local\Temp\e18e03eb69a09321c3ab90ef48a097abe37c66f72a453f43eef04bd76940b347N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\lwGsF.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2804
- - 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:2828
- 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:3032
- - 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:2600
- - 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:2536

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\lwGsF.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
55f40cb13d6c48137bdd4b7379e3eb30

SHA1
10be605e1f12a52d167a07b3265826052ee505ce

SHA256
4f2c97bc32b590093ce24c2e044271aad55163173f081d0405b296700c874847

SHA512
73ccbf658532e042f44378b51478a84acd38cbd90a7297a4d5e5cf9efb7c75d2431eff7291e0d9799c375ee4a22250c5a94ec54c9394cb3ca58fe077630157ac

Download Submit
memory/2536-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2536-74-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2536-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2536-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2600-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2600-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2932-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2932-43-0x0000000003930000-0x0000000003D1A000-memory.dmp

Filesize
3.9MB

Download
memory/2932-44-0x0000000003930000-0x0000000003D1A000-memory.dmp

Filesize
3.9MB

Download
memory/2932-47-0x0000000003930000-0x0000000003D1A000-memory.dmp

Filesize
3.9MB

Download
memory/2932-46-0x0000000003930000-0x0000000003D1A000-memory.dmp

Filesize
3.9MB

Download
memory/2932-51-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/3032-65-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/3032-45-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download