badrabbit | f1bbcc5c678d174d858ae089f4494e3ea8bcfc418098d61804a15e437f08aff7

Target

[email protected]
Size

9.7MB
MD5

1f13396fa59d38ebe76ccc587ccb11bb
SHA1

867adb3076c0d335b9bfa64594ef37a7e2c951ff
SHA256

83ecb875f87150a88f4c3d496eb3cb5388cd8bafdff4879884ececdbd1896e1d
SHA512

82ca2c781bdaa6980f365d1eedb0af5ac5a80842f6edc28a23a5b9ea7b6feec5cd37d54bd08d9281c9ca534ed0047e1e234873b06c7d2b6fe23a7b88a4394fdc

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
2108	A45F.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\SetSave.tiff	rundll32.exe
File opened for modification	C:\Users\Admin\Pictures\StopEnter.tiff	rundll32.exe

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

System Information Discovery
T1082

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\A45F.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
3156	schtasks.exe
2304	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2108	A45F.tmp
2108	A45F.tmp
2108	A45F.tmp
2108	A45F.tmp
2108	A45F.tmp
2108	A45F.tmp
2156	rundll32.exe
2156	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2156	rundll32.exe
Token: SeDebugPrivilege	2156	rundll32.exe
Token: SeTcbPrivilege	2156	rundll32.exe
Token: SeDebugPrivilege	2108	A45F.tmp

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 192 wrote to memory of 2156	192	rundll32.exe	79
PID 192 wrote to memory of 2156	192	rundll32.exe	79
PID 192 wrote to memory of 2156	192	rundll32.exe	79
PID 2156 wrote to memory of 3844	2156	rundll32.exe	80
PID 2156 wrote to memory of 3844	2156	rundll32.exe	80
PID 2156 wrote to memory of 3844	2156	rundll32.exe	80
PID 3844 wrote to memory of 2772	3844	cmd.exe	82
PID 3844 wrote to memory of 2772	3844	cmd.exe	82
PID 3844 wrote to memory of 2772	3844	cmd.exe	82
PID 2156 wrote to memory of 3040	2156	rundll32.exe	83
PID 2156 wrote to memory of 3040	2156	rundll32.exe	83
PID 2156 wrote to memory of 3040	2156	rundll32.exe	83
PID 2156 wrote to memory of 1264	2156	rundll32.exe	85
PID 2156 wrote to memory of 1264	2156	rundll32.exe	85
PID 2156 wrote to memory of 1264	2156	rundll32.exe	85
PID 2156 wrote to memory of 2108	2156	rundll32.exe	86
PID 2156 wrote to memory of 2108	2156	rundll32.exe	86
PID 1264 wrote to memory of 3156	1264	cmd.exe	89
PID 1264 wrote to memory of 3156	1264	cmd.exe	89
PID 1264 wrote to memory of 3156	1264	cmd.exe	89
PID 3040 wrote to memory of 2304	3040	cmd.exe	90
PID 3040 wrote to memory of 2304	3040	cmd.exe	90
PID 3040 wrote to memory of 2304	3040	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
1⤵
PID:3976

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\infpub.dat",#2 15
1⤵
- Suspicious use of WriteProcessMemory
PID:192
- 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:2156
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3844
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:2772
- - 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 4243270103 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3040
  - - 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 4243270103 && exit"
      4⤵
      Creates scheduled task(s)
      PID:2304
- - 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 13:01:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1264
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 13:01:00
      4⤵
      Creates scheduled task(s)
      PID:3156
- - C:\Windows\A45F.tmp
    "C:\Windows\A45F.tmp" \\.\pipe\{A72420C6-4E7A-416D-8BE1-70C8734F26DD}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2108

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2156-3-0x0000000003810000-0x0000000003878000-memory.dmp

Filesize
416KB

Download