darkcomet | 7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4

Analysis

max time kernel
149s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30/10/2024, 01:09

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General

Target

7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe
Size

3.9MB
MD5

e66a7cc714310b83718173d51cc496d5
SHA1

011e86f661c66ebd697bc915ea478f17d597a91b
SHA256

7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4
SHA512

a49976acc39623ddac00d9611458de5fe66b1dda4ad3bc352902570edd619e04f52d8fd75c9be66d6c630dec1ab12bf3af191b24d2bd1336197db3f3ff66a78a
SSDEEP

98304:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cr:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBr

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
2228	Soundcrd.exe
2656	Soundcrd.exe
2616	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe
2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe
2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe
2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe
2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe
2228	Soundcrd.exe
2228	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 2228 set thread context of 2656	2228	Soundcrd.exe	34
PID 2228 set thread context of 2616	2228	Soundcrd.exe	35

UPX packed file 25 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2256-1-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/files/0x0008000000016d33-27.dat	upx
behavioral1/memory/2256-46-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2656-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-68-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2228-69-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2616-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2616-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2616-64-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2656-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2616-74-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2656-77-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-85-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-89-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-93-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2656-97-0x0000000000400000-0x00000000004B5000-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	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	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	2656	Soundcrd.exe
Token: SeSecurityPrivilege	2656	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2656	Soundcrd.exe
Token: SeLoadDriverPrivilege	2656	Soundcrd.exe
Token: SeSystemProfilePrivilege	2656	Soundcrd.exe
Token: SeSystemtimePrivilege	2656	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2656	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2656	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2656	Soundcrd.exe
Token: SeBackupPrivilege	2656	Soundcrd.exe
Token: SeRestorePrivilege	2656	Soundcrd.exe
Token: SeShutdownPrivilege	2656	Soundcrd.exe
Token: SeDebugPrivilege	2656	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2656	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2656	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2656	Soundcrd.exe
Token: SeUndockPrivilege	2656	Soundcrd.exe
Token: SeManageVolumePrivilege	2656	Soundcrd.exe
Token: SeImpersonatePrivilege	2656	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2656	Soundcrd.exe
Token: 33	2656	Soundcrd.exe
Token: 34	2656	Soundcrd.exe
Token: 35	2656	Soundcrd.exe
Token: SeDebugPrivilege	2616	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe
2228	Soundcrd.exe
2616	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2808	2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe	30
PID 2256 wrote to memory of 2808	2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe	30
PID 2256 wrote to memory of 2808	2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe	30
PID 2256 wrote to memory of 2808	2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe	30
PID 2808 wrote to memory of 2824	2808	cmd.exe	32
PID 2808 wrote to memory of 2824	2808	cmd.exe	32
PID 2808 wrote to memory of 2824	2808	cmd.exe	32
PID 2808 wrote to memory of 2824	2808	cmd.exe	32
PID 2256 wrote to memory of 2228	2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe	33
PID 2256 wrote to memory of 2228	2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe	33
PID 2256 wrote to memory of 2228	2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe	33
PID 2256 wrote to memory of 2228	2256	7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe	33
PID 2228 wrote to memory of 2656	2228	Soundcrd.exe	34
PID 2228 wrote to memory of 2656	2228	Soundcrd.exe	34
PID 2228 wrote to memory of 2656	2228	Soundcrd.exe	34
PID 2228 wrote to memory of 2656	2228	Soundcrd.exe	34
PID 2228 wrote to memory of 2656	2228	Soundcrd.exe	34
PID 2228 wrote to memory of 2656	2228	Soundcrd.exe	34
PID 2228 wrote to memory of 2656	2228	Soundcrd.exe	34
PID 2228 wrote to memory of 2656	2228	Soundcrd.exe	34
PID 2228 wrote to memory of 2656	2228	Soundcrd.exe	34
PID 2228 wrote to memory of 2616	2228	Soundcrd.exe	35
PID 2228 wrote to memory of 2616	2228	Soundcrd.exe	35
PID 2228 wrote to memory of 2616	2228	Soundcrd.exe	35
PID 2228 wrote to memory of 2616	2228	Soundcrd.exe	35
PID 2228 wrote to memory of 2616	2228	Soundcrd.exe	35
PID 2228 wrote to memory of 2616	2228	Soundcrd.exe	35
PID 2228 wrote to memory of 2616	2228	Soundcrd.exe	35
PID 2228 wrote to memory of 2616	2228	Soundcrd.exe	35
PID 2228 wrote to memory of 2616	2228	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe
"C:\Users\Admin\AppData\Local\Temp\7f83e96df5105f1f717e1e34915bb5d3bd0f411fbd3f4fd75433dcfee1155ca4.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\kwjsU.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2808
- - 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:2824
- 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:2228
- - 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:2656
- - 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:2616

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\kwjsU.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
58902cead4b4012c225ff79bb12519e5

SHA1
b47ea162d27860fc44afd501f33c8cec53ad8077

SHA256
c4c3ad44fd6899131440de1af4bde97c83b137a356f344d449c90af5a0f992ea

SHA512
9d7d72b8e2148ce89b01f4616ca614c2e072e1c346f8dfaf313ff77d335c2ce6c4d6f9160c824dc9f82bca9b3dcf9abbac78fe2754dc5d5f7077cd58a736f81c

Download Submit
memory/2228-59-0x0000000002DA0000-0x000000000318C000-memory.dmp

Filesize
3.9MB

Download
memory/2228-51-0x0000000002DA0000-0x000000000318C000-memory.dmp

Filesize
3.9MB

Download
memory/2228-69-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2256-43-0x0000000003750000-0x0000000003B3C000-memory.dmp

Filesize
3.9MB

Download
memory/2256-42-0x0000000003750000-0x0000000003B3C000-memory.dmp

Filesize
3.9MB

Download
memory/2256-44-0x0000000003750000-0x0000000003B3C000-memory.dmp

Filesize
3.9MB

Download
memory/2256-46-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2256-1-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2616-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2616-68-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2616-74-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2616-64-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2616-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2656-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-89-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-93-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2656-97-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads