darkcomet | 4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17/02/2025, 03:32

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General

Target

4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe
Size

3.9MB
MD5

c46b44926a296e776b82484fa56f43c5
SHA1

19e4d14ec35ed12e46fe596b7da1fe5b07a8aac0
SHA256

4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d
SHA512

a0721d891277aa8a4648ee0c9e10167e79b879c2c6c9232d2a86c9d7092f6bf22ff0fb4455b60c5f94d50b65eea4bfa45e0d2be4958e8c52fb2f259afe623434
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
2816	Soundcrd.exe
2804	Soundcrd.exe
2892	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe
1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe
1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe
1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe
1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe
2816	Soundcrd.exe
2816	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 2816 set thread context of 2804	2816	Soundcrd.exe	34
PID 2816 set thread context of 2892	2816	Soundcrd.exe	35

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2804-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2804-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2892-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2804-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2804-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2892-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2804-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2892-54-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2804-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2804-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2804-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2804-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2804-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2892-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2804-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2804-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2804-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2804-84-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2804-88-0x0000000000400000-0x00000000004B5000-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	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.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

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: SeDebugPrivilege	2892	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2804	Soundcrd.exe
Token: SeSecurityPrivilege	2804	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2804	Soundcrd.exe
Token: SeLoadDriverPrivilege	2804	Soundcrd.exe
Token: SeSystemProfilePrivilege	2804	Soundcrd.exe
Token: SeSystemtimePrivilege	2804	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2804	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2804	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2804	Soundcrd.exe
Token: SeBackupPrivilege	2804	Soundcrd.exe
Token: SeRestorePrivilege	2804	Soundcrd.exe
Token: SeShutdownPrivilege	2804	Soundcrd.exe
Token: SeDebugPrivilege	2804	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2804	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2804	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2804	Soundcrd.exe
Token: SeUndockPrivilege	2804	Soundcrd.exe
Token: SeManageVolumePrivilege	2804	Soundcrd.exe
Token: SeImpersonatePrivilege	2804	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2804	Soundcrd.exe
Token: 33	2804	Soundcrd.exe
Token: 34	2804	Soundcrd.exe
Token: 35	2804	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe
2816	Soundcrd.exe
2892	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 1724	1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe	30
PID 1700 wrote to memory of 1724	1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe	30
PID 1700 wrote to memory of 1724	1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe	30
PID 1700 wrote to memory of 1724	1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe	30
PID 1724 wrote to memory of 2204	1724	cmd.exe	32
PID 1724 wrote to memory of 2204	1724	cmd.exe	32
PID 1724 wrote to memory of 2204	1724	cmd.exe	32
PID 1724 wrote to memory of 2204	1724	cmd.exe	32
PID 1700 wrote to memory of 2816	1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe	33
PID 1700 wrote to memory of 2816	1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe	33
PID 1700 wrote to memory of 2816	1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe	33
PID 1700 wrote to memory of 2816	1700	4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe	33
PID 2816 wrote to memory of 2804	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2804	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2804	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2804	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2804	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2804	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2804	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2804	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2804	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2892	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2892	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2892	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2892	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2892	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2892	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2892	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2892	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2892	2816	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe
"C:\Users\Admin\AppData\Local\Temp\4a3373593c6cc871dbc9396eb6d29c35948e38df32269d962b7267b0e7ab5c4d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\HWdBR.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1724
- - 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:2204
- 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:2816
- - 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:2804
- - 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:2892

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\HWdBR.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
1be323387f98c5ba2ed0e19fc03776d3

SHA1
5bae1548dddb35d5672f313f540a6290c6a979c2

SHA256
e3113e5265d71aa4b43b724249d2f07bb060198b93aa9eb01258eb4f750a4433

SHA512
7cb37527936b161e262722a32821498a240c1d958c51866dc4ae313cce72e53d9ee1bbaf1bac3eb6ff219a71f471ce8ab567817d018f13819365cc5458f050c9

Download Submit
memory/1700-0-0x0000000000400000-0x00000000007E8000-memory.dmp

Filesize
3.9MB

Download
memory/2804-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-48-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2892-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2892-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2892-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2892-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads