darkcomet | 4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57

Analysis

max time kernel
111s
max time network
119s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
11-12-2024 07:54

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General

Target

4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe
Size

574KB
MD5

5cfebcfaf8400dba30eebfb8fb26ca40
SHA1

5a7f1f5ebdcd5a6beb1dc1c9efc7f16a3ed0cd30
SHA256

4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57
SHA512

35da92b03e3e81cb027a6fbf98d4d225a5b4d7d847de900cf3f9ff26cb8f9dfc8c34929f9b419ff62699e72212ecfec2fac38b9307d077a8df33ac511f01f087
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubM:zFhWAfn22m0eD1GPz8HdxI

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
2468	Soundcrd.exe
2880	Soundcrd.exe
2156	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe
2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe
2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe
2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe
2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe
2468	Soundcrd.exe
2468	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-1-5-21-1163522206-1469769407-485553996-1000\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 2468 set thread context of 2880	2468	Soundcrd.exe	34
PID 2468 set thread context of 2156	2468	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/2156-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2880-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2156-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2880-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2156-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2156-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2880-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2156-75-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2880-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-90-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-94-0x0000000000400000-0x00000000004B5000-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	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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	2156	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe
2468	Soundcrd.exe
2156	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 1520	2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe	30
PID 2312 wrote to memory of 1520	2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe	30
PID 2312 wrote to memory of 1520	2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe	30
PID 2312 wrote to memory of 1520	2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe	30
PID 1520 wrote to memory of 2552	1520	cmd.exe	32
PID 1520 wrote to memory of 2552	1520	cmd.exe	32
PID 1520 wrote to memory of 2552	1520	cmd.exe	32
PID 1520 wrote to memory of 2552	1520	cmd.exe	32
PID 2312 wrote to memory of 2468	2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe	33
PID 2312 wrote to memory of 2468	2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe	33
PID 2312 wrote to memory of 2468	2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe	33
PID 2312 wrote to memory of 2468	2312	4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe	33
PID 2468 wrote to memory of 2880	2468	Soundcrd.exe	34
PID 2468 wrote to memory of 2880	2468	Soundcrd.exe	34
PID 2468 wrote to memory of 2880	2468	Soundcrd.exe	34
PID 2468 wrote to memory of 2880	2468	Soundcrd.exe	34
PID 2468 wrote to memory of 2880	2468	Soundcrd.exe	34
PID 2468 wrote to memory of 2880	2468	Soundcrd.exe	34
PID 2468 wrote to memory of 2880	2468	Soundcrd.exe	34
PID 2468 wrote to memory of 2880	2468	Soundcrd.exe	34
PID 2468 wrote to memory of 2880	2468	Soundcrd.exe	34
PID 2468 wrote to memory of 2156	2468	Soundcrd.exe	35
PID 2468 wrote to memory of 2156	2468	Soundcrd.exe	35
PID 2468 wrote to memory of 2156	2468	Soundcrd.exe	35
PID 2468 wrote to memory of 2156	2468	Soundcrd.exe	35
PID 2468 wrote to memory of 2156	2468	Soundcrd.exe	35
PID 2468 wrote to memory of 2156	2468	Soundcrd.exe	35
PID 2468 wrote to memory of 2156	2468	Soundcrd.exe	35
PID 2468 wrote to memory of 2156	2468	Soundcrd.exe	35
PID 2468 wrote to memory of 2156	2468	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe
"C:\Users\Admin\AppData\Local\Temp\4bef2cd2fa39b27d80b17cfcfea9d1c30ec08886d340b106b24774216b62ab57N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\hZETp.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1520
- - 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:2552
- 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:2468
- - 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:2156

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\hZETp.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
9372b5367b9cfe44edf814836ee0cbe3

SHA1
cf84fa6051056140e73810b83a1a5855ef537d30

SHA256
f4cdc39fe7eaa01f56a7af021167cc12329de84c51bd628090d9c582efb21fb7

SHA512
c6d49806d11e4bea66ea21ecbcb2ad5d4ac4fd8b7f5d5ff9bbc5eff31b391c1d305652aceb907e8d221e1e84a519d205932de5a95aa020207d85bfdae37044f2

Download Submit
memory/2156-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2156-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2156-75-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2156-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2156-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2312-42-0x0000000003850000-0x0000000003C3A000-memory.dmp

Filesize
3.9MB

Download
memory/2312-44-0x0000000003850000-0x0000000003C3A000-memory.dmp

Filesize
3.9MB

Download
memory/2312-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2312-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2468-52-0x0000000002B90000-0x0000000002F7A000-memory.dmp

Filesize
3.9MB

Download
memory/2468-59-0x0000000002C90000-0x000000000307A000-memory.dmp

Filesize
3.9MB

Download
memory/2468-68-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2468-45-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

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

Filesize
724KB

Download
memory/2880-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

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

Filesize
724KB

Download
memory/2880-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-70-0x0000000000400000-0x00000000004B5000-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/2880-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

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

Filesize
724KB

Download
memory/2880-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2880-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads