darkcomet | 015ec58cb97d14a77b7898ad4e5eace577b09bff6c11f6fcfeb6c69e9fb39da3

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 02:57

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General

Target

ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Size

757KB
MD5

ae73974ea6a5f73f5eec469ae21cb5b1
SHA1

ab3a9f8c87b7e5b3d767f7ff4f4d9717f8d83028
SHA256

015ec58cb97d14a77b7898ad4e5eace577b09bff6c11f6fcfeb6c69e9fb39da3
SHA512

a52d65ceaeb5114ab93e88ef653c16da66807daf634fc257f03a2681092d1bb2e5859a3fe1abb0ac1da657068baa0c8f8b3f3608fd9aca996d27f92b04dbde4e
SSDEEP

12288:19HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hq:/Z1xuVVjfFoynPaVBUR8f+kN10EBk

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

192.168.254.101:21

Mutex

DC_MUTEX-Z73GK6V

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
5NjaRP5UK4R1
install
true
offline_keylogger
true
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"	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.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
2672	attrib.exe
2712	attrib.exe

Deletes itself 1 IoCs

pid	Process
2364	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 3 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\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2744 set thread context of 1420	2744	msdcsc.exe	38

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 9 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	cmd.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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1420	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeSecurityPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeBackupPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeRestorePrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeShutdownPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeDebugPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeUndockPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: 33	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: 34	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: 35	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2744	msdcsc.exe
Token: SeSecurityPrivilege	2744	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2744	msdcsc.exe
Token: SeLoadDriverPrivilege	2744	msdcsc.exe
Token: SeSystemProfilePrivilege	2744	msdcsc.exe
Token: SeSystemtimePrivilege	2744	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2744	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2744	msdcsc.exe
Token: SeCreatePagefilePrivilege	2744	msdcsc.exe
Token: SeBackupPrivilege	2744	msdcsc.exe
Token: SeRestorePrivilege	2744	msdcsc.exe
Token: SeShutdownPrivilege	2744	msdcsc.exe
Token: SeDebugPrivilege	2744	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2744	msdcsc.exe
Token: SeChangeNotifyPrivilege	2744	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2744	msdcsc.exe
Token: SeUndockPrivilege	2744	msdcsc.exe
Token: SeManageVolumePrivilege	2744	msdcsc.exe
Token: SeImpersonatePrivilege	2744	msdcsc.exe
Token: SeCreateGlobalPrivilege	2744	msdcsc.exe
Token: 33	2744	msdcsc.exe
Token: 34	2744	msdcsc.exe
Token: 35	2744	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	1420	iexplore.exe
Token: SeSecurityPrivilege	1420	iexplore.exe
Token: SeTakeOwnershipPrivilege	1420	iexplore.exe
Token: SeLoadDriverPrivilege	1420	iexplore.exe
Token: SeSystemProfilePrivilege	1420	iexplore.exe
Token: SeSystemtimePrivilege	1420	iexplore.exe
Token: SeProfSingleProcessPrivilege	1420	iexplore.exe
Token: SeIncBasePriorityPrivilege	1420	iexplore.exe
Token: SeCreatePagefilePrivilege	1420	iexplore.exe
Token: SeBackupPrivilege	1420	iexplore.exe
Token: SeRestorePrivilege	1420	iexplore.exe
Token: SeShutdownPrivilege	1420	iexplore.exe
Token: SeDebugPrivilege	1420	iexplore.exe
Token: SeSystemEnvironmentPrivilege	1420	iexplore.exe
Token: SeChangeNotifyPrivilege	1420	iexplore.exe
Token: SeRemoteShutdownPrivilege	1420	iexplore.exe
Token: SeUndockPrivilege	1420	iexplore.exe
Token: SeManageVolumePrivilege	1420	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1420	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2800	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	30
PID 2500 wrote to memory of 2800	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	30
PID 2500 wrote to memory of 2800	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	30
PID 2500 wrote to memory of 2800	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	30
PID 2500 wrote to memory of 3048	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	32
PID 2500 wrote to memory of 3048	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	32
PID 2500 wrote to memory of 3048	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	32
PID 2500 wrote to memory of 3048	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	32
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2364	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	33
PID 2800 wrote to memory of 2672	2800	cmd.exe	35
PID 2800 wrote to memory of 2672	2800	cmd.exe	35
PID 2800 wrote to memory of 2672	2800	cmd.exe	35
PID 2800 wrote to memory of 2672	2800	cmd.exe	35
PID 3048 wrote to memory of 2712	3048	cmd.exe	36
PID 3048 wrote to memory of 2712	3048	cmd.exe	36
PID 3048 wrote to memory of 2712	3048	cmd.exe	36
PID 3048 wrote to memory of 2712	3048	cmd.exe	36
PID 2500 wrote to memory of 2744	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	37
PID 2500 wrote to memory of 2744	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	37
PID 2500 wrote to memory of 2744	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	37
PID 2500 wrote to memory of 2744	2500	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	37
PID 2744 wrote to memory of 1420	2744	msdcsc.exe	38
PID 2744 wrote to memory of 1420	2744	msdcsc.exe	38
PID 2744 wrote to memory of 1420	2744	msdcsc.exe	38
PID 2744 wrote to memory of 1420	2744	msdcsc.exe	38
PID 2744 wrote to memory of 1420	2744	msdcsc.exe	38
PID 2744 wrote to memory of 1420	2744	msdcsc.exe	38
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39
PID 1420 wrote to memory of 2980	1420	iexplore.exe	39

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2672	attrib.exe
2712	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2672
- 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:3048
- - 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:2712
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2364
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - 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:1420
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:2980

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

\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
757KB

MD5
ae73974ea6a5f73f5eec469ae21cb5b1

SHA1
ab3a9f8c87b7e5b3d767f7ff4f4d9717f8d83028

SHA256
015ec58cb97d14a77b7898ad4e5eace577b09bff6c11f6fcfeb6c69e9fb39da3

SHA512
a52d65ceaeb5114ab93e88ef653c16da66807daf634fc257f03a2681092d1bb2e5859a3fe1abb0ac1da657068baa0c8f8b3f3608fd9aca996d27f92b04dbde4e

Download Submit
memory/1420-30-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2364-5-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2364-20-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2500-0-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2500-71-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2744-31-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2980-70-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads