darkcomet | e58ad88bc079533e2fec178678114f2ed00dc07daff5a90eb38d4d7f7450d26c

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
27-11-2024 20:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Size

896KB
MD5

a997cfe56b79d176151b54567ae198b8
SHA1

4114beca52bed066f18576ae8be0562472466305
SHA256

e58ad88bc079533e2fec178678114f2ed00dc07daff5a90eb38d4d7f7450d26c
SHA512

d1924f296ed7aef11e4a96913a4ba8bb18afcb4b2d0760929e34017c3dc3b1f56bc73ab8c1cd9d9ce8e3ee92d6aa02cdbbf75eed1578b2b0a87455a45b1f1f06
SSDEEP

12288:s/WVJIejx6F8tDmskDAmiIYfPk2XqCNjh1+U90LAO2lKIFmd68tPdsrn9QVONBn4:xH8FgRkDAmiIYf1Xq+tscA1tPdsn98

Score

10^/10

darkcomet bootkit discovery persistence rat trojan

Malware Config

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:\\Windows\\system32\\MSDCSC\\skype.exe"	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\skype = "C:\\Windows\\system32\\MSDCSC\\skype.exe"	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\MSDCSC\skype.exe	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\skype.exe	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 2952	2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	30
PID 2952 set thread context of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2000	2852	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 5 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	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.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	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeSecurityPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeBackupPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeRestorePrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeShutdownPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeDebugPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeUndockPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: 33	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: 34	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
Token: 35	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2952	2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	30
PID 2888 wrote to memory of 2952	2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	30
PID 2888 wrote to memory of 2952	2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	30
PID 2888 wrote to memory of 2952	2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	30
PID 2888 wrote to memory of 2952	2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	30
PID 2888 wrote to memory of 2952	2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	30
PID 2888 wrote to memory of 2952	2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	30
PID 2888 wrote to memory of 2952	2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	30
PID 2888 wrote to memory of 2952	2888	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	30
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2952 wrote to memory of 2852	2952	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	31
PID 2852 wrote to memory of 2476	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	32
PID 2852 wrote to memory of 2476	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	32
PID 2852 wrote to memory of 2476	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	32
PID 2852 wrote to memory of 2476	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	32
PID 2852 wrote to memory of 436	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	34
PID 2852 wrote to memory of 436	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	34
PID 2852 wrote to memory of 436	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	34
PID 2852 wrote to memory of 436	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	34
PID 2852 wrote to memory of 2000	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	35
PID 2852 wrote to memory of 2000	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	35
PID 2852 wrote to memory of 2000	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	35
PID 2852 wrote to memory of 2000	2852	a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe	35

C:\Users\Admin\AppData\Local\Temp\a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Users\Admin\AppData\Local\Temp\a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe"
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2952
- - C:\Users\Admin\AppData\Local\Temp\a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a997cfe56b79d176151b54567ae198b8_JaffaCakes118.exe"
    3⤵
    - Modifies WinLogon for persistence
    - 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:2852
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      PID:2476
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      PID:436
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2852 -s 628
      4⤵
      Program crash
      PID:2000

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat

Filesize
101B

MD5
1849b1e363d0c90b55534c8f164ac8a8

SHA1
117ead679f89f4af680e990cd01f81628ae937f1

SHA256
711167c6fa196d26719b81f6a678d739bd9d4b62473fb12816839d51a9e28c8f

SHA512
b82d08a5a82c59645ad6f009e9adf97e8e0d500fc094a99c59da479d96dfaeb01033d230be75c096aa84cd8141b9789672da091f0b552d05db9485802cf14f0e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat

Filesize
50B

MD5
b774ae3fb1da087e1f83b4f7b2060e5a

SHA1
97eb9be49ac3af9c851c9e1e84e32bfd53e325a8

SHA256
adaf4a84b41e410b02e261cfd0fe7739d98647eab73c3badd32ac6e39f26351b

SHA512
f75d0f95f7306d26a12b414bfe37b97fbd37546cb3c6e403def7077329ddffb4b45d5c5f0ba0e7bb6d72851d2d691b0a85267beead42f7cbf2e8c3d45a3b4701

Download Submit
memory/2852-40-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-21-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-64-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-42-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-17-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-19-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-23-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-25-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-35-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-36-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-65-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-41-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-27-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-31-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2852-29-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2952-6-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2952-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2952-4-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2952-12-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2952-14-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2952-39-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2952-2-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads