badrabbit | 34846131fbf83a71a20dfe4b12d68adb2b764dec18e13a26f6af5b107336616c

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
2640	7843.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\FindAssert.tiff	rundll32.exe
File opened for modification	C:\Users\Admin\Pictures\MergeRequest.tiff	rundll32.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
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
File opened for modification	C:\Windows\7843.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
3120	schtasks.exe
1172	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4040	rundll32.exe
4040	rundll32.exe
4040	rundll32.exe
4040	rundll32.exe
2640	7843.tmp
2640	7843.tmp
2640	7843.tmp
2640	7843.tmp
2640	7843.tmp
2640	7843.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4040	rundll32.exe
Token: SeDebugPrivilege	4040	rundll32.exe
Token: SeTcbPrivilege	4040	rundll32.exe
Token: SeDebugPrivilege	2640	7843.tmp

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 4040	636	BadRabbit.bin.exe	75
PID 636 wrote to memory of 4040	636	BadRabbit.bin.exe	75
PID 636 wrote to memory of 4040	636	BadRabbit.bin.exe	75
PID 4040 wrote to memory of 3728	4040	rundll32.exe	77
PID 4040 wrote to memory of 3728	4040	rundll32.exe	77
PID 4040 wrote to memory of 3728	4040	rundll32.exe	77
PID 3728 wrote to memory of 3712	3728	cmd.exe	79
PID 3728 wrote to memory of 3712	3728	cmd.exe	79
PID 3728 wrote to memory of 3712	3728	cmd.exe	79
PID 4040 wrote to memory of 200	4040	rundll32.exe	80
PID 4040 wrote to memory of 200	4040	rundll32.exe	80
PID 4040 wrote to memory of 200	4040	rundll32.exe	80
PID 200 wrote to memory of 3120	200	cmd.exe	82
PID 200 wrote to memory of 3120	200	cmd.exe	82
PID 200 wrote to memory of 3120	200	cmd.exe	82
PID 4040 wrote to memory of 3840	4040	rundll32.exe	83
PID 4040 wrote to memory of 3840	4040	rundll32.exe	83
PID 4040 wrote to memory of 3840	4040	rundll32.exe	83
PID 4040 wrote to memory of 2640	4040	rundll32.exe	85
PID 4040 wrote to memory of 2640	4040	rundll32.exe	85
PID 3840 wrote to memory of 1172	3840	cmd.exe	87
PID 3840 wrote to memory of 1172	3840	cmd.exe	87
PID 3840 wrote to memory of 1172	3840	cmd.exe	87

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:636
- 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:4040
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3728
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:3712
- - 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 365958471 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:200
  - - 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 365958471 && exit"
      4⤵
      Creates scheduled task(s)
      PID:3120
- - 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 04:50:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3840
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 04:50:00
      4⤵
      Creates scheduled task(s)
      PID:1172
- - C:\Windows\7843.tmp
    "C:\Windows\7843.tmp" \\.\pipe\{11B9693A-CBBE-4D5E-ADD3-146148832D41}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4040-2-0x0000000000BB0000-0x0000000000C18000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads