darkcomet | 53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-10-2024 17:24

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General

Target

53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Size

659KB
MD5

a7a5110423e033baaf3cf86ca69ab630
SHA1

40fcdc432ea715ee418761b83c409cd3c9942a6b
SHA256

53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4
SHA512

59a32aa912fe3fa35a15980b542fc8fd2b327e11286a01f6285844fa4e1bab298e723fc9bc2d95832f8ab001d2b5a804b3ceef28b276774959c5d15b68061536
SSDEEP

12288:G9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/he:iZ1xuVVjfFoynPaVBUR8f+kN10EBM

Score

10^/10

darkcomet server discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

server

sgdy.ddns.net:1122

Mutex

DC_MUTEX-309Q75Q

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
S89mQro8dxG3
install
true
offline_keylogger
true
password
December2oo2
persistence
true
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
332	attrib.exe
2464	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2808	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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 7 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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeSecurityPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeTakeOwnershipPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeLoadDriverPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeSystemProfilePrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeSystemtimePrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeProfSingleProcessPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeIncBasePriorityPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeCreatePagefilePrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeBackupPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeRestorePrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeShutdownPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeDebugPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeSystemEnvironmentPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeChangeNotifyPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeRemoteShutdownPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeUndockPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeManageVolumePrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeImpersonatePrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeCreateGlobalPrivilege	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: 33	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: 34	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: 35	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
Token: SeIncreaseQuotaPrivilege	2808	msdcsc.exe
Token: SeSecurityPrivilege	2808	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2808	msdcsc.exe
Token: SeLoadDriverPrivilege	2808	msdcsc.exe
Token: SeSystemProfilePrivilege	2808	msdcsc.exe
Token: SeSystemtimePrivilege	2808	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2808	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2808	msdcsc.exe
Token: SeCreatePagefilePrivilege	2808	msdcsc.exe
Token: SeBackupPrivilege	2808	msdcsc.exe
Token: SeRestorePrivilege	2808	msdcsc.exe
Token: SeShutdownPrivilege	2808	msdcsc.exe
Token: SeDebugPrivilege	2808	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2808	msdcsc.exe
Token: SeChangeNotifyPrivilege	2808	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2808	msdcsc.exe
Token: SeUndockPrivilege	2808	msdcsc.exe
Token: SeManageVolumePrivilege	2808	msdcsc.exe
Token: SeImpersonatePrivilege	2808	msdcsc.exe
Token: SeCreateGlobalPrivilege	2808	msdcsc.exe
Token: 33	2808	msdcsc.exe
Token: 34	2808	msdcsc.exe
Token: 35	2808	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2808	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2600	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	31
PID 2636 wrote to memory of 2600	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	31
PID 2636 wrote to memory of 2600	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	31
PID 2636 wrote to memory of 2600	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	31
PID 2636 wrote to memory of 2620	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	32
PID 2636 wrote to memory of 2620	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	32
PID 2636 wrote to memory of 2620	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	32
PID 2636 wrote to memory of 2620	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	32
PID 2636 wrote to memory of 2808	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	37
PID 2636 wrote to memory of 2808	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	37
PID 2636 wrote to memory of 2808	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	37
PID 2636 wrote to memory of 2808	2636	53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe	37
PID 2600 wrote to memory of 2464	2600	cmd.exe	35
PID 2600 wrote to memory of 2464	2600	cmd.exe	35
PID 2600 wrote to memory of 2464	2600	cmd.exe	35
PID 2600 wrote to memory of 2464	2600	cmd.exe	35
PID 2620 wrote to memory of 332	2620	cmd.exe	36
PID 2620 wrote to memory of 332	2620	cmd.exe	36
PID 2620 wrote to memory of 332	2620	cmd.exe	36
PID 2620 wrote to memory of 332	2620	cmd.exe	36
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38
PID 2808 wrote to memory of 2972	2808	msdcsc.exe	38

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
332	attrib.exe
2464	attrib.exe

C:\Users\Admin\AppData\Local\Temp\53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe
"C:\Users\Admin\AppData\Local\Temp\53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2600
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4N.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2464
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2620
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:332
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2808
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2972

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

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\MSDCSC\msdcsc.exe

Filesize
659KB

MD5
a7a5110423e033baaf3cf86ca69ab630

SHA1
40fcdc432ea715ee418761b83c409cd3c9942a6b

SHA256
53633b7a4243d0b9668ed02310ec0fe2841fc35b024770df0a0ff56e01c956e4

SHA512
59a32aa912fe3fa35a15980b542fc8fd2b327e11286a01f6285844fa4e1bab298e723fc9bc2d95832f8ab001d2b5a804b3ceef28b276774959c5d15b68061536

Download Submit
memory/2636-51-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-0-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2808-55-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2808-52-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2808-53-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2808-54-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2808-56-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2808-57-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2808-58-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2808-59-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2808-60-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2808-61-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2808-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2972-12-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2972-50-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads