darkcomet | 06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dab

Analysis

max time kernel
119s
max time network
115s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
20-12-2024 04:30

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General

Target

06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe
Size

3.9MB
MD5

a24375d067def5fff222a225dccf1230
SHA1

261e89a9f8b7ac655934e9faaded00f648c9a03f
SHA256

06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dab
SHA512

c97bd6d5a6a137d84d12edb18ad6cecb779f69bac55781c318e731371504a8d86cd3eca2d72e1bed388fa878a46f175cddbb0ae8806fb4621e776d9ddad19969
SSDEEP

98304:IlX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5CX:IlX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBX

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
2420	Soundcrd.exe
2780	Soundcrd.exe
2748	Soundcrd.exe

Loads dropped DLL 6 IoCs

pid	Process
2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe
2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe
2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe
2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe
2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe
2420	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 2420 set thread context of 2780	2420	Soundcrd.exe	34
PID 2420 set thread context of 2748	2420	Soundcrd.exe	35

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2780-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2748-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2748-64-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2748-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2748-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2780-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2748-72-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2780-75-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2780-87-0x0000000000400000-0x00000000004B5000-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	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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	2780	Soundcrd.exe
Token: SeSecurityPrivilege	2780	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2780	Soundcrd.exe
Token: SeLoadDriverPrivilege	2780	Soundcrd.exe
Token: SeSystemProfilePrivilege	2780	Soundcrd.exe
Token: SeSystemtimePrivilege	2780	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2780	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2780	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2780	Soundcrd.exe
Token: SeBackupPrivilege	2780	Soundcrd.exe
Token: SeRestorePrivilege	2780	Soundcrd.exe
Token: SeShutdownPrivilege	2780	Soundcrd.exe
Token: SeDebugPrivilege	2780	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2780	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2780	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2780	Soundcrd.exe
Token: SeUndockPrivilege	2780	Soundcrd.exe
Token: SeManageVolumePrivilege	2780	Soundcrd.exe
Token: SeImpersonatePrivilege	2780	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2780	Soundcrd.exe
Token: 33	2780	Soundcrd.exe
Token: 34	2780	Soundcrd.exe
Token: 35	2780	Soundcrd.exe
Token: SeDebugPrivilege	2748	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe
2420	Soundcrd.exe
2748	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2520	2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe	30
PID 2324 wrote to memory of 2520	2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe	30
PID 2324 wrote to memory of 2520	2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe	30
PID 2324 wrote to memory of 2520	2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe	30
PID 2520 wrote to memory of 2304	2520	cmd.exe	32
PID 2520 wrote to memory of 2304	2520	cmd.exe	32
PID 2520 wrote to memory of 2304	2520	cmd.exe	32
PID 2520 wrote to memory of 2304	2520	cmd.exe	32
PID 2324 wrote to memory of 2420	2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe	33
PID 2324 wrote to memory of 2420	2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe	33
PID 2324 wrote to memory of 2420	2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe	33
PID 2324 wrote to memory of 2420	2324	06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe	33
PID 2420 wrote to memory of 2780	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2780	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2780	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2780	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2780	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2780	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2780	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2780	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2780	2420	Soundcrd.exe	34
PID 2420 wrote to memory of 2748	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2748	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2748	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2748	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2748	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2748	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2748	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2748	2420	Soundcrd.exe	35
PID 2420 wrote to memory of 2748	2420	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe
"C:\Users\Admin\AppData\Local\Temp\06b7d3c0ad879ecd8df6bc5745807117e65ff7667c682f4d3adad20acb026dabN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\BKJZg.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2520
- - 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:2304
- 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:2420
- - 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:2780
- - 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:2748

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\BKJZg.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
ebd85cfa459a056ef710ca2cb7be458d

SHA1
b3b607ef825027fa3e9b32d32bf3f6d69ea82068

SHA256
d03f5bf4822654061b30fb11623d4669f8dbe603010d2a858268a3095038510c

SHA512
c045cfcbe604c2db83fef82357ab844042cc12576e1c6855b3459440348e8b5698f2ee40bf5caf11709e616efcb2ee1d4e4dfcd9097600523e6812013c01c364

Download Submit
memory/2324-44-0x0000000003950000-0x0000000003D3B000-memory.dmp

Filesize
3.9MB

Download
memory/2324-46-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2324-43-0x0000000003950000-0x0000000003D3B000-memory.dmp

Filesize
3.9MB

Download
memory/2324-42-0x0000000003950000-0x0000000003D3B000-memory.dmp

Filesize
3.9MB

Download
memory/2324-2-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2420-67-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2420-51-0x0000000002CB0000-0x000000000309B000-memory.dmp

Filesize
3.9MB

Download
memory/2748-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2748-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2748-72-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2748-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2748-64-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2780-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2780-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads