darkcomet | 6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5ba

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
06/10/2024, 15:54

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General

Target

6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe
Size

3.9MB
MD5

cbaf184a2ad4a2f8f41d247526dee420
SHA1

1c3556855f5e8a3d002bed58fd2b9cdea1509925
SHA256

6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5ba
SHA512

65017432d1c48f825f7a8ce4210fa3ef24b771391dbaeea7b702391ea13adefe98c21ad28cc626904ec07c31768cd946641d367adfac75d3b25a885dfeac1d58
SSDEEP

98304:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cx:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBx

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Soundcrd.exe

Executes dropped EXE 3 IoCs

pid	Process
2604	Soundcrd.exe
1456	Soundcrd.exe
2880	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe
2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe
2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe
2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe
2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe
2604	Soundcrd.exe
2604	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-1-5-21-312935884-697965778-3955649944-1000\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 2604 set thread context of 1456	2604	Soundcrd.exe	34
PID 2604 set thread context of 2880	2604	Soundcrd.exe	35

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2776-2-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/files/0x0009000000016d27-27.dat	upx
behavioral1/memory/2604-48-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2776-47-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2880-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1456-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2604-63-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2880-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1456-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-58-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1456-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2880-73-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1456-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1456-95-0x0000000000400000-0x00000000004B5000-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	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.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: SeDebugPrivilege	2880	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	1456	Soundcrd.exe
Token: SeSecurityPrivilege	1456	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	1456	Soundcrd.exe
Token: SeLoadDriverPrivilege	1456	Soundcrd.exe
Token: SeSystemProfilePrivilege	1456	Soundcrd.exe
Token: SeSystemtimePrivilege	1456	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	1456	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	1456	Soundcrd.exe
Token: SeCreatePagefilePrivilege	1456	Soundcrd.exe
Token: SeBackupPrivilege	1456	Soundcrd.exe
Token: SeRestorePrivilege	1456	Soundcrd.exe
Token: SeShutdownPrivilege	1456	Soundcrd.exe
Token: SeDebugPrivilege	1456	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	1456	Soundcrd.exe
Token: SeChangeNotifyPrivilege	1456	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	1456	Soundcrd.exe
Token: SeUndockPrivilege	1456	Soundcrd.exe
Token: SeManageVolumePrivilege	1456	Soundcrd.exe
Token: SeImpersonatePrivilege	1456	Soundcrd.exe
Token: SeCreateGlobalPrivilege	1456	Soundcrd.exe
Token: 33	1456	Soundcrd.exe
Token: 34	1456	Soundcrd.exe
Token: 35	1456	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe
2604	Soundcrd.exe
2880	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 2996	2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe	30
PID 2776 wrote to memory of 2996	2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe	30
PID 2776 wrote to memory of 2996	2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe	30
PID 2776 wrote to memory of 2996	2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe	30
PID 2996 wrote to memory of 1528	2996	cmd.exe	32
PID 2996 wrote to memory of 1528	2996	cmd.exe	32
PID 2996 wrote to memory of 1528	2996	cmd.exe	32
PID 2996 wrote to memory of 1528	2996	cmd.exe	32
PID 2776 wrote to memory of 2604	2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe	33
PID 2776 wrote to memory of 2604	2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe	33
PID 2776 wrote to memory of 2604	2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe	33
PID 2776 wrote to memory of 2604	2776	6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe	33
PID 2604 wrote to memory of 1456	2604	Soundcrd.exe	34
PID 2604 wrote to memory of 1456	2604	Soundcrd.exe	34
PID 2604 wrote to memory of 1456	2604	Soundcrd.exe	34
PID 2604 wrote to memory of 1456	2604	Soundcrd.exe	34
PID 2604 wrote to memory of 1456	2604	Soundcrd.exe	34
PID 2604 wrote to memory of 1456	2604	Soundcrd.exe	34
PID 2604 wrote to memory of 1456	2604	Soundcrd.exe	34
PID 2604 wrote to memory of 1456	2604	Soundcrd.exe	34
PID 2604 wrote to memory of 1456	2604	Soundcrd.exe	34
PID 2604 wrote to memory of 2880	2604	Soundcrd.exe	35
PID 2604 wrote to memory of 2880	2604	Soundcrd.exe	35
PID 2604 wrote to memory of 2880	2604	Soundcrd.exe	35
PID 2604 wrote to memory of 2880	2604	Soundcrd.exe	35
PID 2604 wrote to memory of 2880	2604	Soundcrd.exe	35
PID 2604 wrote to memory of 2880	2604	Soundcrd.exe	35
PID 2604 wrote to memory of 2880	2604	Soundcrd.exe	35
PID 2604 wrote to memory of 2880	2604	Soundcrd.exe	35
PID 2604 wrote to memory of 2880	2604	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe
"C:\Users\Admin\AppData\Local\Temp\6383a0fcf65591d10b2daaf3709df71bc1fc5a83468f0fab7577ba4a2292c5baN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\WsFUa.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2996
- - 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:1528
- 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:2604
- - 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:1456
- - 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:2880

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\WsFUa.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
d0d261774ba8122af72ed13c692c0000

SHA1
7f9fd89707cdb272db0c83449e6e79ba3fe35277

SHA256
30ec09bca7b13188013eb49860e965ba3fcbdcf8d2cf2907d34053aa71bcda0d

SHA512
a0b7921ecfbc1e7477efd6e70792d21338d9e72c81a776078a06455c574554b6b3ded69cbde8117431d1b5133dc9e88e1ac924def823969f5f6222ebc92a1ba3

Download Submit
memory/1456-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1456-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2604-48-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2604-63-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2604-53-0x0000000002B70000-0x0000000002F5C000-memory.dmp

Filesize
3.9MB

Download
memory/2776-42-0x00000000038D0000-0x0000000003CBC000-memory.dmp

Filesize
3.9MB

Download
memory/2776-2-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2776-46-0x00000000038D0000-0x0000000003CBC000-memory.dmp

Filesize
3.9MB

Download
memory/2776-44-0x00000000038D0000-0x0000000003CBC000-memory.dmp

Filesize
3.9MB

Download
memory/2776-45-0x00000000038D0000-0x0000000003CBC000-memory.dmp

Filesize
3.9MB

Download
memory/2776-47-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2880-73-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2880-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2880-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2880-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads