darkcomet | fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 11:51

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General

Target

fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe
Size

3.9MB
MD5

e6b54eb807f1e397ca3a1cc2b2e37310
SHA1

21ade0bef769b7cc220051a4b195907b2d596e1f
SHA256

fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6
SHA512

d50f04867fb08c6112b01613a47d736a8044da15e43164a6e101856cdb45b07454314fec7837a96ca9c39f968b2b406f436eb7937f9092e94f23f529848e558d
SSDEEP

98304:IlX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cu:IlX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBu

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
1472	Soundcrd.exe
2888	Soundcrd.exe
2604	Soundcrd.exe

Loads dropped DLL 6 IoCs

pid	Process
264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe
264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe
264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe
264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe
264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe
1472	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-1-5-21-3290804112-2823094203-3137964600-1000\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 1472 set thread context of 2888	1472	Soundcrd.exe	35
PID 1472 set thread context of 2604	1472	Soundcrd.exe	36

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2888-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2604-59-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2888-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2604-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2604-63-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2888-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2604-72-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2888-75-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-91-0x0000000000400000-0x00000000004B5000-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	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.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: SeIncreaseQuotaPrivilege	2888	Soundcrd.exe
Token: SeSecurityPrivilege	2888	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2888	Soundcrd.exe
Token: SeLoadDriverPrivilege	2888	Soundcrd.exe
Token: SeSystemProfilePrivilege	2888	Soundcrd.exe
Token: SeSystemtimePrivilege	2888	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2888	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2888	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2888	Soundcrd.exe
Token: SeBackupPrivilege	2888	Soundcrd.exe
Token: SeRestorePrivilege	2888	Soundcrd.exe
Token: SeShutdownPrivilege	2888	Soundcrd.exe
Token: SeDebugPrivilege	2888	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2888	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2888	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2888	Soundcrd.exe
Token: SeUndockPrivilege	2888	Soundcrd.exe
Token: SeManageVolumePrivilege	2888	Soundcrd.exe
Token: SeImpersonatePrivilege	2888	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2888	Soundcrd.exe
Token: 33	2888	Soundcrd.exe
Token: 34	2888	Soundcrd.exe
Token: 35	2888	Soundcrd.exe
Token: SeDebugPrivilege	2604	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe
1472	Soundcrd.exe
2604	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 264 wrote to memory of 480	264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe	31
PID 264 wrote to memory of 480	264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe	31
PID 264 wrote to memory of 480	264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe	31
PID 264 wrote to memory of 480	264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe	31
PID 480 wrote to memory of 1932	480	cmd.exe	33
PID 480 wrote to memory of 1932	480	cmd.exe	33
PID 480 wrote to memory of 1932	480	cmd.exe	33
PID 480 wrote to memory of 1932	480	cmd.exe	33
PID 264 wrote to memory of 1472	264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe	34
PID 264 wrote to memory of 1472	264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe	34
PID 264 wrote to memory of 1472	264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe	34
PID 264 wrote to memory of 1472	264	fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe	34
PID 1472 wrote to memory of 2888	1472	Soundcrd.exe	35
PID 1472 wrote to memory of 2888	1472	Soundcrd.exe	35
PID 1472 wrote to memory of 2888	1472	Soundcrd.exe	35
PID 1472 wrote to memory of 2888	1472	Soundcrd.exe	35
PID 1472 wrote to memory of 2888	1472	Soundcrd.exe	35
PID 1472 wrote to memory of 2888	1472	Soundcrd.exe	35
PID 1472 wrote to memory of 2888	1472	Soundcrd.exe	35
PID 1472 wrote to memory of 2888	1472	Soundcrd.exe	35
PID 1472 wrote to memory of 2888	1472	Soundcrd.exe	35
PID 1472 wrote to memory of 2604	1472	Soundcrd.exe	36
PID 1472 wrote to memory of 2604	1472	Soundcrd.exe	36
PID 1472 wrote to memory of 2604	1472	Soundcrd.exe	36
PID 1472 wrote to memory of 2604	1472	Soundcrd.exe	36
PID 1472 wrote to memory of 2604	1472	Soundcrd.exe	36
PID 1472 wrote to memory of 2604	1472	Soundcrd.exe	36
PID 1472 wrote to memory of 2604	1472	Soundcrd.exe	36
PID 1472 wrote to memory of 2604	1472	Soundcrd.exe	36
PID 1472 wrote to memory of 2604	1472	Soundcrd.exe	36

C:\Users\Admin\AppData\Local\Temp\fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe
"C:\Users\Admin\AppData\Local\Temp\fdd86b41fae7d1c24c68f4f0937b59f71dd66d314a7dc2b49e259c0605b1f9e6.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:264
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\oRieL.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:480
- - 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:1932
- 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:1472
- - 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:2888
- - 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:2604

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\oRieL.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
a18dabccfc5ba75df19a47b01b56f541

SHA1
701e5e01a19b2b06028a5c8110160017de0695e2

SHA256
eb086a231d388e5e660a6eb8c086bf02432cc2959af3c1f48714dec86be7b8e8

SHA512
04d9be83c855ab4af19b36bdb88227c5acd8778d24d414fbfaca729510251bf48848cd82e4645baf736e86aecca90daccecfbbddf2e219eda8d4008b8aa39852

Download Submit
memory/264-42-0x00000000038B0000-0x0000000003C9B000-memory.dmp

Filesize
3.9MB

Download
memory/264-45-0x00000000038B0000-0x0000000003C9B000-memory.dmp

Filesize
3.9MB

Download
memory/264-44-0x00000000038B0000-0x0000000003C9B000-memory.dmp

Filesize
3.9MB

Download
memory/264-43-0x00000000038B0000-0x0000000003C9B000-memory.dmp

Filesize
3.9MB

Download
memory/264-47-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/264-1-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/1472-65-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2604-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2604-72-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2604-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2604-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2888-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2888-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads