badrabbit | 34846131fbf83a71a20dfe4b12d68adb2b764dec18e13a26f6af5b107336616c

Analysis

max time kernel
150s
max time network
21s
platform
windows7_x64
resource
win7v20201028
submitted
04-11-2020 03:35

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General

Target

BadRabbit.bin.exe
Size

431KB
MD5

fbbdc39af1139aebba4da004475e8839
SHA1

de5c8d858e6e41da715dca1c019df0bfb92d32c0
SHA256

630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da
SHA512

74eca8c01de215b33d5ceea1fda3f3bef96b513f58a750dba04b0de36f7ef4f7846a6431d52879ca0d8641bfd504d4721a9a96fa2e18c6888fd67fa77686af87

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
1172	197A.tmp

Modifies extensions of user files 1 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

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

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\197A.tmp	rundll32.exe
File created	C:\Windows\infpub.dat	BadRabbit.bin.exe
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

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
1668	schtasks.exe
628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1160	rundll32.exe
1160	rundll32.exe
1172	197A.tmp
1172	197A.tmp
1172	197A.tmp
1172	197A.tmp
1172	197A.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1160	rundll32.exe
Token: SeDebugPrivilege	1160	rundll32.exe
Token: SeTcbPrivilege	1160	rundll32.exe
Token: SeDebugPrivilege	1172	197A.tmp

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 1160	1848	BadRabbit.bin.exe	26
PID 1848 wrote to memory of 1160	1848	BadRabbit.bin.exe	26
PID 1848 wrote to memory of 1160	1848	BadRabbit.bin.exe	26
PID 1848 wrote to memory of 1160	1848	BadRabbit.bin.exe	26
PID 1848 wrote to memory of 1160	1848	BadRabbit.bin.exe	26
PID 1848 wrote to memory of 1160	1848	BadRabbit.bin.exe	26
PID 1848 wrote to memory of 1160	1848	BadRabbit.bin.exe	26
PID 1160 wrote to memory of 1440	1160	rundll32.exe	28
PID 1160 wrote to memory of 1440	1160	rundll32.exe	28
PID 1160 wrote to memory of 1440	1160	rundll32.exe	28
PID 1160 wrote to memory of 1440	1160	rundll32.exe	28
PID 1440 wrote to memory of 1980	1440	cmd.exe	30
PID 1440 wrote to memory of 1980	1440	cmd.exe	30
PID 1440 wrote to memory of 1980	1440	cmd.exe	30
PID 1440 wrote to memory of 1980	1440	cmd.exe	30
PID 1160 wrote to memory of 752	1160	rundll32.exe	34
PID 1160 wrote to memory of 752	1160	rundll32.exe	34
PID 1160 wrote to memory of 752	1160	rundll32.exe	34
PID 1160 wrote to memory of 752	1160	rundll32.exe	34
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 1160 wrote to memory of 320	1160	rundll32.exe	37
PID 1160 wrote to memory of 320	1160	rundll32.exe	37
PID 1160 wrote to memory of 320	1160	rundll32.exe	37
PID 1160 wrote to memory of 320	1160	rundll32.exe	37
PID 1160 wrote to memory of 1172	1160	rundll32.exe	39
PID 1160 wrote to memory of 1172	1160	rundll32.exe	39
PID 1160 wrote to memory of 1172	1160	rundll32.exe	39
PID 1160 wrote to memory of 1172	1160	rundll32.exe	39
PID 320 wrote to memory of 628	320	cmd.exe	40
PID 320 wrote to memory of 628	320	cmd.exe	40
PID 320 wrote to memory of 628	320	cmd.exe	40
PID 320 wrote to memory of 628	320	cmd.exe	40

C:\Users\Admin\AppData\Local\Temp\BadRabbit.bin.exe
"C:\Users\Admin\AppData\Local\Temp\BadRabbit.bin.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1848
- 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:1160
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1440
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:1980
- - 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 1770005381 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:752
  - - 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 1770005381 && exit"
      4⤵
      Creates scheduled task(s)
      PID:1668
- - 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 03:50:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:320
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 03:50:00
      4⤵
      Creates scheduled task(s)
      PID:628
- - C:\Windows\197A.tmp
    "C:\Windows\197A.tmp" \\.\pipe\{6CC80334-FF2A-44E6-B28A-399425B92468}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1172

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/1160-2-0x00000000009A0000-0x0000000000A08000-memory.dmp

Filesize
416KB

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