darkcomet | 79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 23:45

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General

Target

79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe
Size

3.9MB
MD5

bdca41745bf71ee13037b81a4db75962
SHA1

c07d5786c2c50c784b3b20aab596b278496be895
SHA256

79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336
SHA512

7fdf6b6df53918d9a943312af773f0e81a1a047973b20f5bded0eafc4e735c9147f0999b2b6fbdc03011e124087885fb3848e6502956b21143146c22096092da
SSDEEP

98304:IlX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5C0:IlX3KMj7yBNUVPhd5G0Z5DxdM3hZpmB0

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
2892	Soundcrd.exe
2928	Soundcrd.exe
2996	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe
2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe
2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe
2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe
2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe
2892	Soundcrd.exe
2892	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-1-5-21-3692679935-4019334568-335155002-1000\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 2892 set thread context of 2928	2892	Soundcrd.exe	35
PID 2892 set thread context of 2996	2892	Soundcrd.exe	36

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2996-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2996-59-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2928-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2996-55-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2928-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2996-72-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2928-77-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-95-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2928-99-0x0000000000400000-0x00000000004B5000-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	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.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	2996	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2928	Soundcrd.exe
Token: SeSecurityPrivilege	2928	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2928	Soundcrd.exe
Token: SeLoadDriverPrivilege	2928	Soundcrd.exe
Token: SeSystemProfilePrivilege	2928	Soundcrd.exe
Token: SeSystemtimePrivilege	2928	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2928	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2928	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2928	Soundcrd.exe
Token: SeBackupPrivilege	2928	Soundcrd.exe
Token: SeRestorePrivilege	2928	Soundcrd.exe
Token: SeShutdownPrivilege	2928	Soundcrd.exe
Token: SeDebugPrivilege	2928	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2928	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2928	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2928	Soundcrd.exe
Token: SeUndockPrivilege	2928	Soundcrd.exe
Token: SeManageVolumePrivilege	2928	Soundcrd.exe
Token: SeImpersonatePrivilege	2928	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2928	Soundcrd.exe
Token: 33	2928	Soundcrd.exe
Token: 34	2928	Soundcrd.exe
Token: 35	2928	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe
2892	Soundcrd.exe
2996	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2964	2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe	31
PID 2268 wrote to memory of 2964	2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe	31
PID 2268 wrote to memory of 2964	2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe	31
PID 2268 wrote to memory of 2964	2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe	31
PID 2964 wrote to memory of 2492	2964	cmd.exe	33
PID 2964 wrote to memory of 2492	2964	cmd.exe	33
PID 2964 wrote to memory of 2492	2964	cmd.exe	33
PID 2964 wrote to memory of 2492	2964	cmd.exe	33
PID 2268 wrote to memory of 2892	2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe	34
PID 2268 wrote to memory of 2892	2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe	34
PID 2268 wrote to memory of 2892	2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe	34
PID 2268 wrote to memory of 2892	2268	79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe	34
PID 2892 wrote to memory of 2928	2892	Soundcrd.exe	35
PID 2892 wrote to memory of 2928	2892	Soundcrd.exe	35
PID 2892 wrote to memory of 2928	2892	Soundcrd.exe	35
PID 2892 wrote to memory of 2928	2892	Soundcrd.exe	35
PID 2892 wrote to memory of 2928	2892	Soundcrd.exe	35
PID 2892 wrote to memory of 2928	2892	Soundcrd.exe	35
PID 2892 wrote to memory of 2928	2892	Soundcrd.exe	35
PID 2892 wrote to memory of 2928	2892	Soundcrd.exe	35
PID 2892 wrote to memory of 2928	2892	Soundcrd.exe	35
PID 2892 wrote to memory of 2996	2892	Soundcrd.exe	36
PID 2892 wrote to memory of 2996	2892	Soundcrd.exe	36
PID 2892 wrote to memory of 2996	2892	Soundcrd.exe	36
PID 2892 wrote to memory of 2996	2892	Soundcrd.exe	36
PID 2892 wrote to memory of 2996	2892	Soundcrd.exe	36
PID 2892 wrote to memory of 2996	2892	Soundcrd.exe	36
PID 2892 wrote to memory of 2996	2892	Soundcrd.exe	36
PID 2892 wrote to memory of 2996	2892	Soundcrd.exe	36
PID 2892 wrote to memory of 2996	2892	Soundcrd.exe	36

C:\Users\Admin\AppData\Local\Temp\79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe
"C:\Users\Admin\AppData\Local\Temp\79b3aa57e5b7e5ff4761bff863c53a616a814852aa79ae3d07a48098b24d4336.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\KhgTC.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2964
- - 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:2492
- 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:2892
- - 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:2928
- - 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:2996

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\KhgTC.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
3274390982c28124f64920581bedccfb

SHA1
c4b63800d71a9f20b4725838b1db4c55fe40f3f3

SHA256
56146fd9af6d83bfb9490fb6656709470f9c76ead1bd1e192a605120de285b8b

SHA512
e3501555dd30110c5a21cf8bb1a94c11cd7c5e2a3c153b3cefd311a4ce77d71f7228b5568190e0cc028bb7aa3fde7fd61fa0e67df5b34970a4a87740a99f3113

Download Submit
memory/2268-70-0x0000000003140000-0x000000000352B000-memory.dmp

Filesize
3.9MB

Download
memory/2268-49-0x0000000003140000-0x000000000352B000-memory.dmp

Filesize
3.9MB

Download
memory/2268-43-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2268-2-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2892-54-0x0000000002B80000-0x0000000002F6B000-memory.dmp

Filesize
3.9MB

Download
memory/2892-53-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2892-61-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2892-60-0x0000000002C80000-0x000000000306B000-memory.dmp

Filesize
3.9MB

Download
memory/2928-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-48-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-99-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2928-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2996-72-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2996-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2996-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2996-55-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads