darkcomet | 428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782

Resubmissions

16/02/2025, 00:58

250216-bbmsfatlen 10

16/02/2025, 00:54

250216-a9fakstker 10

Analysis

max time kernel
1799s
max time network
1798s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16/02/2025, 00:58

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General

Target

428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe
Size

3.9MB
MD5

ca9a384b8c0fd85d5c33baa900f9cf50
SHA1

831d541cc2f12b73dc5fa09443f5fed0f03216a3
SHA256

428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782
SHA512

41fd3b8b3a61fb612c6b05990c67d2510dfdb91dcf028783153be63f90f55ae036015a483dc490483f48e1d2161e2b01fb5c9ae756636840a9c3f36603af5163
SSDEEP

98304:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cc:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBc

Score

10^/10

darkcomet whale discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Whale

ygo.no-ip.info:1604

Mutex

DC_MUTEX-KF2Q2MJ

Attributes

gencode
YxpcQq6jqoiB
install
false
offline_keylogger
false
persistence
false

rc4.plain

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
1516	Soundcrd.exe
2756	Soundcrd.exe
2684	Soundcrd.exe

Loads dropped DLL 6 IoCs

pid	Process
2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe
2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe
2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe
2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe
2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe
1516	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-1-5-21-4177215427-74451935-3209572229-1000\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 1516 set thread context of 2756	1516	Soundcrd.exe	34
PID 1516 set thread context of 2684	1516	Soundcrd.exe	35

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2756-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2684-58-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2756-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2684-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2684-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2756-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2684-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2756-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-77-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-95-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-99-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-105-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-109-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2756-113-0x0000000000400000-0x00000000004B5000-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	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.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\VendorIdentifier	Soundcrd.exe
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

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	2756	Soundcrd.exe
Token: SeSecurityPrivilege	2756	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2756	Soundcrd.exe
Token: SeLoadDriverPrivilege	2756	Soundcrd.exe
Token: SeSystemProfilePrivilege	2756	Soundcrd.exe
Token: SeSystemtimePrivilege	2756	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2756	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2756	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2756	Soundcrd.exe
Token: SeBackupPrivilege	2756	Soundcrd.exe
Token: SeRestorePrivilege	2756	Soundcrd.exe
Token: SeShutdownPrivilege	2756	Soundcrd.exe
Token: SeDebugPrivilege	2756	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2756	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2756	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2756	Soundcrd.exe
Token: SeUndockPrivilege	2756	Soundcrd.exe
Token: SeManageVolumePrivilege	2756	Soundcrd.exe
Token: SeImpersonatePrivilege	2756	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2756	Soundcrd.exe
Token: 33	2756	Soundcrd.exe
Token: 34	2756	Soundcrd.exe
Token: 35	2756	Soundcrd.exe
Token: SeDebugPrivilege	2684	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe
1516	Soundcrd.exe
2684	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2452	2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe	30
PID 2304 wrote to memory of 2452	2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe	30
PID 2304 wrote to memory of 2452	2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe	30
PID 2304 wrote to memory of 2452	2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe	30
PID 2452 wrote to memory of 2640	2452	cmd.exe	32
PID 2452 wrote to memory of 2640	2452	cmd.exe	32
PID 2452 wrote to memory of 2640	2452	cmd.exe	32
PID 2452 wrote to memory of 2640	2452	cmd.exe	32
PID 2304 wrote to memory of 1516	2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe	33
PID 2304 wrote to memory of 1516	2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe	33
PID 2304 wrote to memory of 1516	2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe	33
PID 2304 wrote to memory of 1516	2304	428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe	33
PID 1516 wrote to memory of 2756	1516	Soundcrd.exe	34
PID 1516 wrote to memory of 2756	1516	Soundcrd.exe	34
PID 1516 wrote to memory of 2756	1516	Soundcrd.exe	34
PID 1516 wrote to memory of 2756	1516	Soundcrd.exe	34
PID 1516 wrote to memory of 2756	1516	Soundcrd.exe	34
PID 1516 wrote to memory of 2756	1516	Soundcrd.exe	34
PID 1516 wrote to memory of 2756	1516	Soundcrd.exe	34
PID 1516 wrote to memory of 2756	1516	Soundcrd.exe	34
PID 1516 wrote to memory of 2756	1516	Soundcrd.exe	34
PID 1516 wrote to memory of 2684	1516	Soundcrd.exe	35
PID 1516 wrote to memory of 2684	1516	Soundcrd.exe	35
PID 1516 wrote to memory of 2684	1516	Soundcrd.exe	35
PID 1516 wrote to memory of 2684	1516	Soundcrd.exe	35
PID 1516 wrote to memory of 2684	1516	Soundcrd.exe	35
PID 1516 wrote to memory of 2684	1516	Soundcrd.exe	35
PID 1516 wrote to memory of 2684	1516	Soundcrd.exe	35
PID 1516 wrote to memory of 2684	1516	Soundcrd.exe	35
PID 1516 wrote to memory of 2684	1516	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe
"C:\Users\Admin\AppData\Local\Temp\428296838557d8ea5e7a4b7c027653e6794ec6a56035bda6310f5c0a795b6782N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\JEpTn.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2452
- - 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:2640
- 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:1516
- - 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:2756
- - 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:2684

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\JEpTn.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
af371216537b7825e300a70d602291e6

SHA1
26f6585d9d83fb82e0727c13818e54d7f3eb93f3

SHA256
7b11ba668435e06f8397ac45bb19a9f5d6d1276232f57865cd2108709b30eb03

SHA512
0b94a4eff2f1326be7f9d5d2e7b9334cc395a7710c1810a358df091d03092508a94893e456cbfd2c13f0d398ca780890475b7bedeb364f7b9a05c4ac9f30f935

Download Submit
memory/2304-0-0x0000000000400000-0x00000000007E8000-memory.dmp

Filesize
3.9MB

Download
memory/2684-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2684-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2684-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2684-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2756-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-48-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-99-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-105-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-109-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2756-113-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads