badrabbit | f1bbcc5c678d174d858ae089f4494e3ea8bcfc418098d61804a15e437f08aff7

Target

[email protected]
Size

762KB
MD5

7734f0e56da17e9a5940fd782d739f9b
SHA1

4dfae67e40be6c4c83191ea0cf8d1b28afba884c
SHA256

8855299560183b57556d9714a2b958cdc6190fcdfb270633da2a47dfeee20015
SHA512

53d07938bafbcb9524cdba6d25e09fcdae128a83718ab686374f0526730e2e6380f60e3bf951601e48f6f8e64563c484ddd8baf9be2878a5ad393817028a9632

Score

10^/10

badrabbit ransomware

Malware Config

Signatures

BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
ransomware badrabbit

Executes dropped EXE 1 IoCs

pid	Process
3872	9200.tmp

Modifies extensions of user files 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\CopyUnblock.tiff	rundll32.exe
File opened for modification	C:\Users\Admin\Pictures\StopResolve.tiff	rundll32.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\infpub.dat	rundll32.exe
File created	C:\Windows\cscc.dat	rundll32.exe
File created	C:\Windows\dispci.exe	rundll32.exe
File opened for modification	C:\Windows\9200.tmp	rundll32.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
60	schtasks.exe
1208	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
200	rundll32.exe
200	rundll32.exe
200	rundll32.exe
200	rundll32.exe
3872	9200.tmp
3872	9200.tmp
3872	9200.tmp
3872	9200.tmp
3872	9200.tmp
3872	9200.tmp
200	rundll32.exe
200	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	200	rundll32.exe
Token: SeDebugPrivilege	200	rundll32.exe
Token: SeTcbPrivilege	200	rundll32.exe
Token: SeDebugPrivilege	3872	9200.tmp

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
652	[email protected]
652	[email protected]
652	[email protected]
652	[email protected]

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
652	[email protected]
652	[email protected]
652	[email protected]
652	[email protected]

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3448 wrote to memory of 200	3448	rundll32.exe	79
PID 3448 wrote to memory of 200	3448	rundll32.exe	79
PID 3448 wrote to memory of 200	3448	rundll32.exe	79
PID 200 wrote to memory of 2328	200	rundll32.exe	80
PID 200 wrote to memory of 2328	200	rundll32.exe	80
PID 200 wrote to memory of 2328	200	rundll32.exe	80
PID 2328 wrote to memory of 640	2328	cmd.exe	82
PID 2328 wrote to memory of 640	2328	cmd.exe	82
PID 2328 wrote to memory of 640	2328	cmd.exe	82
PID 200 wrote to memory of 3816	200	rundll32.exe	83
PID 200 wrote to memory of 3816	200	rundll32.exe	83
PID 200 wrote to memory of 3816	200	rundll32.exe	83
PID 200 wrote to memory of 3572	200	rundll32.exe	85
PID 200 wrote to memory of 3572	200	rundll32.exe	85
PID 200 wrote to memory of 3572	200	rundll32.exe	85
PID 200 wrote to memory of 3872	200	rundll32.exe	87
PID 200 wrote to memory of 3872	200	rundll32.exe	87
PID 3816 wrote to memory of 60	3816	cmd.exe	86
PID 3816 wrote to memory of 60	3816	cmd.exe	86
PID 3816 wrote to memory of 60	3816	cmd.exe	86
PID 3572 wrote to memory of 1208	3572	cmd.exe	90
PID 3572 wrote to memory of 1208	3572	cmd.exe	90
PID 3572 wrote to memory of 1208	3572	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:652

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\infpub.dat",#2 15
1⤵
- Suspicious use of WriteProcessMemory
PID:3448
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
  2⤵
  - Modifies extensions of user files
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:200
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2328
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:640
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 1452804923 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3816
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 1452804923 && exit"
      4⤵
      Creates scheduled task(s)
      PID:60
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 13:08:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3572
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 13:08:00
      4⤵
      Creates scheduled task(s)
      PID:1208
- - C:\Windows\9200.tmp
    "C:\Windows\9200.tmp" \\.\pipe\{023DC89F-A92F-46FF-98A2-A02AFB7B982E}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/200-4-0x0000000000C60000-0x0000000000CC8000-memory.dmp

Filesize
416KB

Download
memory/652-2-0x0000000002620000-0x0000000002621000-memory.dmp

Filesize
4KB

Download