darkcomet | 9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 01:59

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General

Target

9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe
Size

574KB
MD5

40954ac79f5cb469a81355564e19b49c
SHA1

61fe293c804fd003f65587a8c88047ee9034da9c
SHA256

9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3
SHA512

21a01cd8e3a80ebcc6a9feaacf19bf1b7296a10de1eb509a76c394b56e1b423557d480b49c9a669f81b1dd09d8e603f6c5b3cf4a406b2525b8a082bddcd2739d
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubY:zFhWAfn22m0eD1GPz8Hdx0

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
2820	Soundcrd.exe
2880	Soundcrd.exe
2632	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe
2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe
2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe
2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe
2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe
2820	Soundcrd.exe
2820	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 2820 set thread context of 2880	2820	Soundcrd.exe	34
PID 2820 set thread context of 2632	2820	Soundcrd.exe	35

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2880-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2880-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-70-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2880-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-71-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2880-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-77-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2880-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-84-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-88-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-92-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-96-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-100-0x0000000000400000-0x00000000004B5000-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	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.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

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	2880	Soundcrd.exe
Token: SeSecurityPrivilege	2880	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2880	Soundcrd.exe
Token: SeLoadDriverPrivilege	2880	Soundcrd.exe
Token: SeSystemProfilePrivilege	2880	Soundcrd.exe
Token: SeSystemtimePrivilege	2880	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2880	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2880	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2880	Soundcrd.exe
Token: SeBackupPrivilege	2880	Soundcrd.exe
Token: SeRestorePrivilege	2880	Soundcrd.exe
Token: SeShutdownPrivilege	2880	Soundcrd.exe
Token: SeDebugPrivilege	2880	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2880	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2880	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2880	Soundcrd.exe
Token: SeUndockPrivilege	2880	Soundcrd.exe
Token: SeManageVolumePrivilege	2880	Soundcrd.exe
Token: SeImpersonatePrivilege	2880	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2880	Soundcrd.exe
Token: 33	2880	Soundcrd.exe
Token: 34	2880	Soundcrd.exe
Token: 35	2880	Soundcrd.exe
Token: SeDebugPrivilege	2632	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe
2820	Soundcrd.exe
2632	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2208	2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe	30
PID 2400 wrote to memory of 2208	2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe	30
PID 2400 wrote to memory of 2208	2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe	30
PID 2400 wrote to memory of 2208	2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe	30
PID 2208 wrote to memory of 2324	2208	cmd.exe	32
PID 2208 wrote to memory of 2324	2208	cmd.exe	32
PID 2208 wrote to memory of 2324	2208	cmd.exe	32
PID 2208 wrote to memory of 2324	2208	cmd.exe	32
PID 2400 wrote to memory of 2820	2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe	33
PID 2400 wrote to memory of 2820	2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe	33
PID 2400 wrote to memory of 2820	2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe	33
PID 2400 wrote to memory of 2820	2400	9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe	33
PID 2820 wrote to memory of 2880	2820	Soundcrd.exe	34
PID 2820 wrote to memory of 2880	2820	Soundcrd.exe	34
PID 2820 wrote to memory of 2880	2820	Soundcrd.exe	34
PID 2820 wrote to memory of 2880	2820	Soundcrd.exe	34
PID 2820 wrote to memory of 2880	2820	Soundcrd.exe	34
PID 2820 wrote to memory of 2880	2820	Soundcrd.exe	34
PID 2820 wrote to memory of 2880	2820	Soundcrd.exe	34
PID 2820 wrote to memory of 2880	2820	Soundcrd.exe	34
PID 2820 wrote to memory of 2880	2820	Soundcrd.exe	34
PID 2820 wrote to memory of 2632	2820	Soundcrd.exe	35
PID 2820 wrote to memory of 2632	2820	Soundcrd.exe	35
PID 2820 wrote to memory of 2632	2820	Soundcrd.exe	35
PID 2820 wrote to memory of 2632	2820	Soundcrd.exe	35
PID 2820 wrote to memory of 2632	2820	Soundcrd.exe	35
PID 2820 wrote to memory of 2632	2820	Soundcrd.exe	35
PID 2820 wrote to memory of 2632	2820	Soundcrd.exe	35
PID 2820 wrote to memory of 2632	2820	Soundcrd.exe	35
PID 2820 wrote to memory of 2632	2820	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe
"C:\Users\Admin\AppData\Local\Temp\9400cc468e1e76428cb4d4541872ad27f69c640a78aab60e42ad2802edcd80b3.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\NMkWV.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2208
- - 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:2324
- 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:2820
- - 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:2880
- - 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:2632

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\NMkWV.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
262dc1e3cd259e1eaef3575321ee2394

SHA1
644f6271df770fe96e6350e086a98416ed14ac78

SHA256
055f12fb283227476859dec4ea75bf63cbdd3fc40f2c449df11a3ce8aca31cac

SHA512
325eafac207d0b4b85cd314f37e59d023e0d47c6bf671452594b3f9b673b8ed5c0f31ce729a23f081968434ef2063335848e56356bd552f9505743b4cfe2f459

Download Submit
memory/2400-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2400-42-0x0000000003A00000-0x0000000003DEA000-memory.dmp

Filesize
3.9MB

Download
memory/2400-44-0x0000000003A00000-0x0000000003DEA000-memory.dmp

Filesize
3.9MB

Download
memory/2400-43-0x0000000003A00000-0x0000000003DEA000-memory.dmp

Filesize
3.9MB

Download
memory/2400-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2632-77-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2632-71-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2632-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2632-70-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2820-52-0x0000000002C80000-0x000000000306A000-memory.dmp

Filesize
3.9MB

Download
memory/2820-66-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2820-60-0x0000000002C80000-0x000000000306A000-memory.dmp

Filesize
3.9MB

Download
memory/2880-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-92-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-96-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-100-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads