darkcomet | 5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3

Analysis

max time kernel
149s
max time network
144s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-10-2024 21:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe
Size

592KB
MD5

4f22e461871f4375204277f9b4b11da1
SHA1

6d584be3809bc3cd0345487e86b8e20db49e51fd
SHA256

5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3
SHA512

3378fbf3e3b4327b27a57de6914f87eb223db0d75bcf61ab8e943cd5b89d00e3f8bd9f9882db6da083b50ba320e954f14eb7a8f6dc06e64af4d06a75a7d738d7
SSDEEP

12288:wcWRJxhIUKofd9S88itJsL6s8GwUF81yn0FI/6IC0XoSz:TW/xhIUKofSytJsL6HUP0OHCi

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

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
2692	Soundcrd.exe
2596	Soundcrd.exe
2008	Soundcrd.exe

Loads dropped DLL 7 IoCs

Processes:

5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exeSoundcrd.exe

pid	Process
2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe
2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe
2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe
2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe
2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe
2692	Soundcrd.exe
2692	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-1-5-21-3551809350-4263495960-1443967649-1000\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 2692 set thread context of 2596	2692	Soundcrd.exe	34
PID 2692 set thread context of 2008	2692	Soundcrd.exe	35

UPX packed file 26 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2596-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2596-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2596-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2596-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2692-64-0x0000000000400000-0x00000000007EB000-memory.dmp	upx
behavioral1/memory/2596-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2596-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2008-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2008-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2596-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/files/0x000c000000018617-58.dat	upx
behavioral1/memory/2596-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2008-56-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2596-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2692-51-0x0000000002B20000-0x0000000002F0B000-memory.dmp	upx
behavioral1/memory/2080-45-0x0000000000400000-0x00000000007EB000-memory.dmp	upx
behavioral1/memory/2080-0-0x0000000000400000-0x00000000007EB000-memory.dmp	upx
behavioral1/memory/2596-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2692-73-0x0000000002C20000-0x000000000300B000-memory.dmp	upx
behavioral1/memory/2008-75-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2596-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2596-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2596-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2596-90-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2596-94-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2596-98-0x0000000000400000-0x00000000004B5000-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:

cmd.exereg.exeSoundcrd.exeSoundcrd.exeSoundcrd.exe5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.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 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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	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: SeDebugPrivilege	2008	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2596	Soundcrd.exe
Token: SeSecurityPrivilege	2596	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2596	Soundcrd.exe
Token: SeLoadDriverPrivilege	2596	Soundcrd.exe
Token: SeSystemProfilePrivilege	2596	Soundcrd.exe
Token: SeSystemtimePrivilege	2596	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2596	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2596	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2596	Soundcrd.exe
Token: SeBackupPrivilege	2596	Soundcrd.exe
Token: SeRestorePrivilege	2596	Soundcrd.exe
Token: SeShutdownPrivilege	2596	Soundcrd.exe
Token: SeDebugPrivilege	2596	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2596	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2596	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2596	Soundcrd.exe
Token: SeUndockPrivilege	2596	Soundcrd.exe
Token: SeManageVolumePrivilege	2596	Soundcrd.exe
Token: SeImpersonatePrivilege	2596	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2596	Soundcrd.exe
Token: 33	2596	Soundcrd.exe
Token: 34	2596	Soundcrd.exe
Token: 35	2596	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exeSoundcrd.exeSoundcrd.exe

pid	Process
2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe
2692	Soundcrd.exe
2008	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.execmd.exeSoundcrd.exe

description	pid	Process	procid_target
PID 2080 wrote to memory of 2064	2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe	30
PID 2080 wrote to memory of 2064	2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe	30
PID 2080 wrote to memory of 2064	2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe	30
PID 2080 wrote to memory of 2064	2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe	30
PID 2064 wrote to memory of 2832	2064	cmd.exe	32
PID 2064 wrote to memory of 2832	2064	cmd.exe	32
PID 2064 wrote to memory of 2832	2064	cmd.exe	32
PID 2064 wrote to memory of 2832	2064	cmd.exe	32
PID 2080 wrote to memory of 2692	2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe	33
PID 2080 wrote to memory of 2692	2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe	33
PID 2080 wrote to memory of 2692	2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe	33
PID 2080 wrote to memory of 2692	2080	5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe	33
PID 2692 wrote to memory of 2596	2692	Soundcrd.exe	34
PID 2692 wrote to memory of 2596	2692	Soundcrd.exe	34
PID 2692 wrote to memory of 2596	2692	Soundcrd.exe	34
PID 2692 wrote to memory of 2596	2692	Soundcrd.exe	34
PID 2692 wrote to memory of 2596	2692	Soundcrd.exe	34
PID 2692 wrote to memory of 2596	2692	Soundcrd.exe	34
PID 2692 wrote to memory of 2596	2692	Soundcrd.exe	34
PID 2692 wrote to memory of 2596	2692	Soundcrd.exe	34
PID 2692 wrote to memory of 2596	2692	Soundcrd.exe	34
PID 2692 wrote to memory of 2008	2692	Soundcrd.exe	35
PID 2692 wrote to memory of 2008	2692	Soundcrd.exe	35
PID 2692 wrote to memory of 2008	2692	Soundcrd.exe	35
PID 2692 wrote to memory of 2008	2692	Soundcrd.exe	35
PID 2692 wrote to memory of 2008	2692	Soundcrd.exe	35
PID 2692 wrote to memory of 2008	2692	Soundcrd.exe	35
PID 2692 wrote to memory of 2008	2692	Soundcrd.exe	35
PID 2692 wrote to memory of 2008	2692	Soundcrd.exe	35
PID 2692 wrote to memory of 2008	2692	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe
"C:\Users\Admin\AppData\Local\Temp\5a56983b6c85a45e8cde0019c25f31267cbde4b0835ac3d01f982ca5723cfea3.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\SoBRu.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2064
- - 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:2832
- 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:2692
- - 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:2596
- - 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:2008

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

Loading Replay Monitor...

Downloads

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

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
592KB

MD5
701dcfe2e1fd291a9cb9946a20e69fd8

SHA1
8fa8b016601f7d47288d1d00736477f2623e2888

SHA256
fff534597580ed092cdca3e924e0524cc44025acc99aa244c0735e33eb7fd4ba

SHA512
20d324032286296d6753197dd3d61932d828712989b61d49ea93f31da665b4432f6054d76e62f0d25ad94b27ccd3cde28ec5cc9518505679743f3d6a6d7e84d3

Download Submit
memory/2008-75-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2008-56-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2008-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2008-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2080-0-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2080-42-0x0000000003860000-0x0000000003C4B000-memory.dmp

Filesize
3.9MB

Download
memory/2080-45-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2080-46-0x0000000003860000-0x0000000003C4B000-memory.dmp

Filesize
3.9MB

Download
memory/2596-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-98-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2596-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2692-73-0x0000000002C20000-0x000000000300B000-memory.dmp

Filesize
3.9MB

Download
memory/2692-65-0x0000000002C20000-0x000000000300B000-memory.dmp

Filesize
3.9MB

Download
memory/2692-64-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2692-51-0x0000000002B20000-0x0000000002F0B000-memory.dmp

Filesize
3.9MB

Download