badrabbit | 2a45e44be359fba4c85591e7b13d1ec772ed181adc41254d8b00d31b2d15878e

Reason

Machine shutdown: "{\"level\":\"info\",\"time\":\"2024-04-25T18:31:53Z\",\"message\":\"Dirty snapshot: /var/lib/sandbox/hatchvm/win7-20231129-en/instance_31-dirty.qcow2\"}"

General

Target

Bad Rabit.exe
Size

431KB
MD5

fbbdc39af1139aebba4da004475e8839
SHA1

de5c8d858e6e41da715dca1c019df0bfb92d32c0
SHA256

630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da
SHA512

74eca8c01de215b33d5ceea1fda3f3bef96b513f58a750dba04b0de36f7ef4f7846a6431d52879ca0d8641bfd504d4721a9a96fa2e18c6888fd67fa77686af87
SSDEEP

12288:BHNTywFAvN86pLbqWRKHZKfErrZJyZ0yqsGO3XR63:vT56NbqWRwZaEr3yt2O3XR63

Score

10^/10

badrabbit mimikatz evasion ransomware

Malware Config

Signatures

BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
ransomware badrabbit
Deletes NTFS Change Journal 2 TTPs 1 IoCs
The USN change journal is a persistent log of all changes made to local files used by Windows Server systems.
ransomware

Inhibit System Recovery
T1490

Data Destruction
T1485

Processes:

fsutil.exe

pid process

2492 fsutil.exe
Mimikatz
mimikatz is an open source tool to dump credentials on Windows.
mimikatz
Clears Windows event logs 1 TTPs 4 IoCs
evasion ransomware

Indicator Removal
T1070

Processes:

wevtutil.exewevtutil.exewevtutil.exewevtutil.exe

pid process

1824 wevtutil.exe
1584 wevtutil.exe
1660 wevtutil.exe
1704 wevtutil.exe

pid	process
2492	fsutil.exe

pid	process
1824	wevtutil.exe
1584	wevtutil.exe
1660	wevtutil.exe
1704	wevtutil.exe

mimikatz is an open source tool to dump credentials on Windows 1 IoCs

Processes:

resource	yara_rule
C:\Windows\1120.tmp	mimikatz

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

165 2372 rundll32.exe
Executes dropped EXE 1 IoCs

Processes:

1120.tmp

pid process

2304 1120.tmp

flow	pid	process
165	2372	rundll32.exe

pid	process
2304	1120.tmp

Drops file in Windows directory 5 IoCs

Processes:

rundll32.exeBad Rabit.exe

description	ioc	process
File created	C:\Windows\cscc.dat	rundll32.exe
File created	C:\Windows\dispci.exe	rundll32.exe
File opened for modification	C:\Windows\1120.tmp	rundll32.exe
File created	C:\Windows\infpub.dat	Bad Rabit.exe
File opened for modification	C:\Windows\infpub.dat	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/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

2652 schtasks.exe
2576 schtasks.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

rundll32.exe1120.tmp

pid process

2372 rundll32.exe
2372 rundll32.exe
2304 1120.tmp
2304 1120.tmp
2304 1120.tmp
2304 1120.tmp
2304 1120.tmp

pid	process
2652	schtasks.exe
2576	schtasks.exe

pid	process
2372	rundll32.exe
2372	rundll32.exe
2304	1120.tmp
2304	1120.tmp
2304	1120.tmp
2304	1120.tmp
2304	1120.tmp

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

rundll32.exe1120.tmpwevtutil.exewevtutil.exewevtutil.exewevtutil.exe

description	pid	process
Token: SeShutdownPrivilege	2372	rundll32.exe
Token: SeDebugPrivilege	2372	rundll32.exe
Token: SeTcbPrivilege	2372	rundll32.exe
Token: SeDebugPrivilege	2304	1120.tmp
Token: SeSecurityPrivilege	1824	wevtutil.exe
Token: SeBackupPrivilege	1824	wevtutil.exe
Token: SeSecurityPrivilege	1584	wevtutil.exe
Token: SeBackupPrivilege	1584	wevtutil.exe
Token: SeSecurityPrivilege	1660	wevtutil.exe
Token: SeBackupPrivilege	1660	wevtutil.exe
Token: SeSecurityPrivilege	1704	wevtutil.exe
Token: SeBackupPrivilege	1704	wevtutil.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

Bad Rabit.exerundll32.execmd.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 2364 wrote to memory of 2372	2364	Bad Rabit.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	Bad Rabit.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	Bad Rabit.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	Bad Rabit.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	Bad Rabit.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	Bad Rabit.exe	rundll32.exe
PID 2364 wrote to memory of 2372	2364	Bad Rabit.exe	rundll32.exe
PID 2372 wrote to memory of 2540	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2540	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2540	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2540	2372	rundll32.exe	cmd.exe
PID 2540 wrote to memory of 1468	2540	cmd.exe	schtasks.exe
PID 2540 wrote to memory of 1468	2540	cmd.exe	schtasks.exe
PID 2540 wrote to memory of 1468	2540	cmd.exe	schtasks.exe
PID 2540 wrote to memory of 1468	2540	cmd.exe	schtasks.exe
PID 2372 wrote to memory of 2604	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2604	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2604	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2604	2372	rundll32.exe	cmd.exe
PID 2604 wrote to memory of 2652	2604	cmd.exe	schtasks.exe
PID 2604 wrote to memory of 2652	2604	cmd.exe	schtasks.exe
PID 2604 wrote to memory of 2652	2604	cmd.exe	schtasks.exe
PID 2604 wrote to memory of 2652	2604	cmd.exe	schtasks.exe
PID 2372 wrote to memory of 2672	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2672	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2672	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2672	2372	rundll32.exe	cmd.exe
PID 2672 wrote to memory of 2576	2672	cmd.exe	schtasks.exe
PID 2672 wrote to memory of 2576	2672	cmd.exe	schtasks.exe
PID 2672 wrote to memory of 2576	2672	cmd.exe	schtasks.exe
PID 2672 wrote to memory of 2576	2672	cmd.exe	schtasks.exe
PID 2372 wrote to memory of 2304	2372	rundll32.exe	1120.tmp
PID 2372 wrote to memory of 2304	2372	rundll32.exe	1120.tmp
PID 2372 wrote to memory of 2304	2372	rundll32.exe	1120.tmp
PID 2372 wrote to memory of 2304	2372	rundll32.exe	1120.tmp
PID 2372 wrote to memory of 1588	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 1588	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 1588	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 1588	2372	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 1824	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1824	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1824	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1824	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1584	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1584	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1584	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1584	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1660	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1660	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1660	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1660	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1704	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1704	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1704	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 1704	1588	cmd.exe	wevtutil.exe
PID 1588 wrote to memory of 2492	1588	cmd.exe	fsutil.exe
PID 1588 wrote to memory of 2492	1588	cmd.exe	fsutil.exe
PID 1588 wrote to memory of 2492	1588	cmd.exe	fsutil.exe
PID 1588 wrote to memory of 2492	1588	cmd.exe	fsutil.exe
PID 2372 wrote to memory of 2948	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2948	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2948	2372	rundll32.exe	cmd.exe
PID 2372 wrote to memory of 2948	2372	rundll32.exe	cmd.exe
PID 2948 wrote to memory of 2464	2948	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Bad Rabit.exe
"C:\Users\Admin\AppData\Local\Temp\Bad Rabit.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
  2⤵
  - Blocklisted process makes network request
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2540
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:1468
- - 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 491708769 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2604
  - - 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 491708769 && exit"
      4⤵
      Creates scheduled task(s)
      PID:2652
- - 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 18:34:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2672
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 18:34:00
      4⤵
      Creates scheduled task(s)
      PID:2576
- - C:\Windows\1120.tmp
    "C:\Windows\1120.tmp" \\.\pipe\{1F40E963-0433-4E16-873E-4467B7FD410B}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2304
- - C:\Windows\SysWOW64\cmd.exe
    /c wevtutil cl Setup & wevtutil cl System & wevtutil cl Security & wevtutil cl Application & fsutil usn deletejournal /D C:
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1588
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Setup
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:1824
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl System
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:1584
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Security
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:1660
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Application
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:1704
  - - C:\Windows\SysWOW64\fsutil.exe
      fsutil usn deletejournal /D C:
      4⤵
      Deletes NTFS Change Journal
      PID:2492
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN drogon
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2948
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN drogon
      4⤵
      PID:2464

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2636

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Indicator Removal

1

T1070

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Data Destruction

1

T1485

Inhibit System Recovery

1

T1490

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Downloads

C:\Windows\1120.tmp

Filesize
60KB

MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
C:\Windows\infpub.dat

Filesize
401KB

MD5
1d724f95c61f1055f0d02c2154bbccd3

SHA1
79116fe99f2b421c52ef64097f0f39b815b20907

SHA256
579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648

SHA512
f2d7b018d1516df1c97cfff5507957c75c6d9bf8e2ce52ae0052706f4ec62f13eba6d7be17e6ad2b693fdd58e1fd091c37f17bd2b948cdcd9b95b4ad428c0113

Download Submit
memory/936-446-0x0000000002AB0000-0x0000000002AB1000-memory.dmp

Filesize
4KB

Download
memory/2372-2-0x0000000002020000-0x0000000002088000-memory.dmp

Filesize
416KB

Download
memory/2372-10-0x0000000002020000-0x0000000002088000-memory.dmp

Filesize
416KB

Download
memory/2372-13-0x0000000002020000-0x0000000002088000-memory.dmp

Filesize
416KB

Download
memory/2636-445-0x0000000002D90000-0x0000000002D91000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads