darkcomet | c60d84e06944cfe3219b64107d04608960a4fc2cf6abe4763f13bb1fa46903d7

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25/10/2024, 01:46

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General

Target

75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe
Size

503KB
MD5

75b7e4f3b01e4cd62a83ed1aca10e497
SHA1

6647e17778fec92a27d34caa7e8f0015ac602a98
SHA256

c60d84e06944cfe3219b64107d04608960a4fc2cf6abe4763f13bb1fa46903d7
SHA512

97b5304f058265ede2679ce80dec3fd9224a18a4a32aaf822d3a48d26d361f0cfbdf9e9c1997d65c419e834e5c1aa3a3c8e61fae45106f30df0e8ee3c5fd1ffa
SSDEEP

12288:5HGC8w0ueY7YZzU4LAsLrYpKCEgplake5NhitJE95bf:wC8wfzqUsLrYppEaYv5b8WHbf

Score

10^/10

darkcomet îëîëîëüêà discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Îëîëîëüêà

mrserv.zapto.org:1604

Mutex

DC_MUTEX-9GC1VMQ

Attributes

InstallPath
M4DCSC\msdcsc.exe
gencode
bWcbqcPSQhbp
install
true
offline_keylogger
true
persistence
true
reg_key
WinUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat 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:\\Windows\\system32\\M4DCSC\\msdcsc.exe"	1.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	msdcsc.exe

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
2840	attrib.exe
2904	attrib.exe

Executes dropped EXE 3 IoCs

pid	Process
1180	1.exe
1256	FreeCryptor.exe
2976	msdcsc.exe

Loads dropped DLL 6 IoCs

pid	Process
1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe
1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe
1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe
1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe
1180	1.exe
1180	1.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\WinUpdate = "C:\\Windows\\system32\\M4DCSC\\msdcsc.exe"	1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Windows\\system32\\M4DCSC\\msdcsc.exe"	msdcsc.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\M4DCSC\msdcsc.exe	1.exe
File opened for modification	C:\Windows\SysWOW64\M4DCSC\msdcsc.exe	1.exe
File opened for modification	C:\Windows\SysWOW64\M4DCSC\	1.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 10 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FreeCryptor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2976	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1180	1.exe
Token: SeSecurityPrivilege	1180	1.exe
Token: SeTakeOwnershipPrivilege	1180	1.exe
Token: SeLoadDriverPrivilege	1180	1.exe
Token: SeSystemProfilePrivilege	1180	1.exe
Token: SeSystemtimePrivilege	1180	1.exe
Token: SeProfSingleProcessPrivilege	1180	1.exe
Token: SeIncBasePriorityPrivilege	1180	1.exe
Token: SeCreatePagefilePrivilege	1180	1.exe
Token: SeBackupPrivilege	1180	1.exe
Token: SeRestorePrivilege	1180	1.exe
Token: SeShutdownPrivilege	1180	1.exe
Token: SeDebugPrivilege	1180	1.exe
Token: SeSystemEnvironmentPrivilege	1180	1.exe
Token: SeChangeNotifyPrivilege	1180	1.exe
Token: SeRemoteShutdownPrivilege	1180	1.exe
Token: SeUndockPrivilege	1180	1.exe
Token: SeManageVolumePrivilege	1180	1.exe
Token: SeImpersonatePrivilege	1180	1.exe
Token: SeCreateGlobalPrivilege	1180	1.exe
Token: 33	1180	1.exe
Token: 34	1180	1.exe
Token: 35	1180	1.exe
Token: SeIncreaseQuotaPrivilege	2976	msdcsc.exe
Token: SeSecurityPrivilege	2976	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2976	msdcsc.exe
Token: SeLoadDriverPrivilege	2976	msdcsc.exe
Token: SeSystemProfilePrivilege	2976	msdcsc.exe
Token: SeSystemtimePrivilege	2976	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2976	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2976	msdcsc.exe
Token: SeCreatePagefilePrivilege	2976	msdcsc.exe
Token: SeBackupPrivilege	2976	msdcsc.exe
Token: SeRestorePrivilege	2976	msdcsc.exe
Token: SeShutdownPrivilege	2976	msdcsc.exe
Token: SeDebugPrivilege	2976	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2976	msdcsc.exe
Token: SeChangeNotifyPrivilege	2976	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2976	msdcsc.exe
Token: SeUndockPrivilege	2976	msdcsc.exe
Token: SeManageVolumePrivilege	2976	msdcsc.exe
Token: SeImpersonatePrivilege	2976	msdcsc.exe
Token: SeCreateGlobalPrivilege	2976	msdcsc.exe
Token: 33	2976	msdcsc.exe
Token: 34	2976	msdcsc.exe
Token: 35	2976	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2976	msdcsc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 1180	1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe	30
PID 1684 wrote to memory of 1180	1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe	30
PID 1684 wrote to memory of 1180	1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe	30
PID 1684 wrote to memory of 1180	1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe	30
PID 1684 wrote to memory of 1256	1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe	31
PID 1684 wrote to memory of 1256	1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe	31
PID 1684 wrote to memory of 1256	1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe	31
PID 1684 wrote to memory of 1256	1684	75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe	31
PID 1180 wrote to memory of 2448	1180	1.exe	32
PID 1180 wrote to memory of 2448	1180	1.exe	32
PID 1180 wrote to memory of 2448	1180	1.exe	32
PID 1180 wrote to memory of 2448	1180	1.exe	32
PID 1180 wrote to memory of 2784	1180	1.exe	33
PID 1180 wrote to memory of 2784	1180	1.exe	33
PID 1180 wrote to memory of 2784	1180	1.exe	33
PID 1180 wrote to memory of 2784	1180	1.exe	33
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 1180 wrote to memory of 2396	1180	1.exe	34
PID 2784 wrote to memory of 2904	2784	cmd.exe	38
PID 2784 wrote to memory of 2904	2784	cmd.exe	38
PID 2784 wrote to memory of 2904	2784	cmd.exe	38
PID 2784 wrote to memory of 2904	2784	cmd.exe	38
PID 2448 wrote to memory of 2840	2448	cmd.exe	37
PID 2448 wrote to memory of 2840	2448	cmd.exe	37
PID 2448 wrote to memory of 2840	2448	cmd.exe	37
PID 2448 wrote to memory of 2840	2448	cmd.exe	37
PID 1180 wrote to memory of 2976	1180	1.exe	39
PID 1180 wrote to memory of 2976	1180	1.exe	39
PID 1180 wrote to memory of 2976	1180	1.exe	39
PID 1180 wrote to memory of 2976	1180	1.exe	39
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40
PID 2976 wrote to memory of 1512	2976	msdcsc.exe	40

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2904	attrib.exe
2840	attrib.exe

C:\Users\Admin\AppData\Local\Temp\75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\75b7e4f3b01e4cd62a83ed1aca10e497_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\1.exe
  "C:\Users\Admin\AppData\Local\Temp\1.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1180
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\1.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2448
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\1.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2840
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2784
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2904
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2396
- - C:\Windows\SysWOW64\M4DCSC\msdcsc.exe
    "C:\Windows\system32\M4DCSC\msdcsc.exe"
    3⤵
    - Modifies security service
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2976
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:1512
- C:\Users\Admin\AppData\Local\Temp\FreeCryptor.exe
  "C:\Users\Admin\AppData\Local\Temp\FreeCryptor.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1256

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

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\FreeCryptor.exe

Filesize
29KB

MD5
e11341b03bdb5c57d2eb2d5c58682e18

SHA1
4abe9584d36840808cac0a1726003af505acd63b

SHA256
39256fb67d025860790025b7576925df76a4ef1c4f8ea59015ccb8499623c0da

SHA512
4c08da90eeee01d3b14fe31b433fdd231fc158c8f6a0aff056055da2748b3525a36360dbffedef369261cce5db31e556d06c2e5f7f8659c7009fcc10dc67dd15

Download Submit
\Users\Admin\AppData\Local\Temp\1.exe

Filesize
659KB

MD5
4fd74e6219c0325aa77c1f9a2b93ea21

SHA1
34275051b24702f4eaff5fbc9bdd1d63ea115113

SHA256
efdc3759d6b3acfa8d016a4d3c48ef683f38ddad4900ade0e00f8555f77ec145

SHA512
8f3f82f77da3fc1e9b925c635bdbbf17e9e850d4e37bf92e1126c99480b70759f08ea490ca1b66cae029dd6f7affe4e33ceac5ac761658653a24a25135c887ba

Download Submit
memory/1180-65-0x0000000003EA0000-0x0000000003F53000-memory.dmp

Filesize
716KB

Download
memory/1180-23-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/1180-21-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1180-64-0x0000000003EA0000-0x0000000003F53000-memory.dmp

Filesize
716KB

Download
memory/1180-109-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1684-13-0x00000000032C0000-0x0000000003373000-memory.dmp

Filesize
716KB

Download
memory/1684-11-0x00000000032C0000-0x0000000003373000-memory.dmp

Filesize
716KB

Download
memory/2396-56-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2396-28-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2976-67-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2976-119-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads