badrabbit | 630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da

Analysis

max time kernel
914s
max time network
917s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
04-04-2024 22:33

Sharing

Copy URL

Twitter E-mail

Reason

Machine shutdown

Report Analysis Logs

General

Target

BadRabbit.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

pid	Process
216	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

pid	Process
932	wevtutil.exe
2848	wevtutil.exe
444	wevtutil.exe
1548	wevtutil.exe

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

resource	yara_rule
behavioral1/files/0x000800000001abd3-20.dat	mimikatz

Blocklisted process makes network request 3 IoCs

flow	pid	Process
307	3700	rundll32.exe
363	3700	rundll32.exe
405	3700	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
1732	E36B.tmp

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\infpub.dat	BadRabbit.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\E36B.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/Job

T1053

pid	Process
2460	schtasks.exe
5108	schtasks.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3700	rundll32.exe
3700	rundll32.exe
3700	rundll32.exe
3700	rundll32.exe
1732	E36B.tmp
1732	E36B.tmp
1732	E36B.tmp
1732	E36B.tmp
1732	E36B.tmp
1732	E36B.tmp

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3700	rundll32.exe
Token: SeDebugPrivilege	3700	rundll32.exe
Token: SeTcbPrivilege	3700	rundll32.exe
Token: SeDebugPrivilege	1732	E36B.tmp
Token: SeSecurityPrivilege	932	wevtutil.exe
Token: SeBackupPrivilege	932	wevtutil.exe
Token: SeSecurityPrivilege	2848	wevtutil.exe
Token: SeBackupPrivilege	2848	wevtutil.exe
Token: SeSecurityPrivilege	444	wevtutil.exe
Token: SeBackupPrivilege	444	wevtutil.exe
Token: SeSecurityPrivilege	1548	wevtutil.exe
Token: SeBackupPrivilege	1548	wevtutil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3572	LogonUI.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 3700	4656	BadRabbit.exe	75
PID 4656 wrote to memory of 3700	4656	BadRabbit.exe	75
PID 4656 wrote to memory of 3700	4656	BadRabbit.exe	75
PID 3700 wrote to memory of 4500	3700	rundll32.exe	76
PID 3700 wrote to memory of 4500	3700	rundll32.exe	76
PID 3700 wrote to memory of 4500	3700	rundll32.exe	76
PID 4500 wrote to memory of 3372	4500	cmd.exe	78
PID 4500 wrote to memory of 3372	4500	cmd.exe	78
PID 4500 wrote to memory of 3372	4500	cmd.exe	78
PID 3700 wrote to memory of 4184	3700	rundll32.exe	79
PID 3700 wrote to memory of 4184	3700	rundll32.exe	79
PID 3700 wrote to memory of 4184	3700	rundll32.exe	79
PID 4184 wrote to memory of 5108	4184	cmd.exe	81
PID 4184 wrote to memory of 5108	4184	cmd.exe	81
PID 4184 wrote to memory of 5108	4184	cmd.exe	81
PID 3700 wrote to memory of 1484	3700	rundll32.exe	82
PID 3700 wrote to memory of 1484	3700	rundll32.exe	82
PID 3700 wrote to memory of 1484	3700	rundll32.exe	82
PID 3700 wrote to memory of 1732	3700	rundll32.exe	84
PID 3700 wrote to memory of 1732	3700	rundll32.exe	84
PID 1484 wrote to memory of 2460	1484	cmd.exe	86
PID 1484 wrote to memory of 2460	1484	cmd.exe	86
PID 1484 wrote to memory of 2460	1484	cmd.exe	86
PID 3700 wrote to memory of 3344	3700	rundll32.exe	89
PID 3700 wrote to memory of 3344	3700	rundll32.exe	89
PID 3700 wrote to memory of 3344	3700	rundll32.exe	89
PID 3344 wrote to memory of 932	3344	cmd.exe	91
PID 3344 wrote to memory of 932	3344	cmd.exe	91
PID 3344 wrote to memory of 932	3344	cmd.exe	91
PID 3344 wrote to memory of 2848	3344	cmd.exe	92
PID 3344 wrote to memory of 2848	3344	cmd.exe	92
PID 3344 wrote to memory of 2848	3344	cmd.exe	92
PID 3344 wrote to memory of 444	3344	cmd.exe	93
PID 3344 wrote to memory of 444	3344	cmd.exe	93
PID 3344 wrote to memory of 444	3344	cmd.exe	93
PID 3344 wrote to memory of 1548	3344	cmd.exe	94
PID 3344 wrote to memory of 1548	3344	cmd.exe	94
PID 3344 wrote to memory of 1548	3344	cmd.exe	94
PID 3344 wrote to memory of 216	3344	cmd.exe	95
PID 3344 wrote to memory of 216	3344	cmd.exe	95
PID 3344 wrote to memory of 216	3344	cmd.exe	95
PID 3700 wrote to memory of 2368	3700	rundll32.exe	96
PID 3700 wrote to memory of 2368	3700	rundll32.exe	96
PID 3700 wrote to memory of 2368	3700	rundll32.exe	96
PID 2368 wrote to memory of 4136	2368	cmd.exe	99
PID 2368 wrote to memory of 4136	2368	cmd.exe	99
PID 2368 wrote to memory of 4136	2368	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\BadRabbit.exe
"C:\Users\Admin\AppData\Local\Temp\BadRabbit.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4656
- 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:3700
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4500
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:3372
- - 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 2919438596 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4184
  - - 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 2919438596 && exit"
      4⤵
      Creates scheduled task(s)
      PID:5108
- - 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 22:52:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1484
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 22:52:00
      4⤵
      Creates scheduled task(s)
      PID:2460
- - C:\Windows\E36B.tmp
    "C:\Windows\E36B.tmp" \\.\pipe\{23D0CEDF-418B-4E9F-A6C9-9E405BF5C8E3}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1732
- - 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:3344
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Setup
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:932
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl System
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:2848
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Security
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:444
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Application
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:1548
  - - C:\Windows\SysWOW64\fsutil.exe
      fsutil usn deletejournal /D C:
      4⤵
      Deletes NTFS Change Journal
      PID:216
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN drogon
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2368
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN drogon
      4⤵
      PID:4136

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3af1855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Indicator Removal

T1070

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Data Destruction

T1485

Inhibit System Recovery

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\E36B.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/3700-2-0x0000000004310000-0x0000000004378000-memory.dmp

Filesize
416KB

Download
memory/3700-10-0x0000000004310000-0x0000000004378000-memory.dmp

Filesize
416KB

Download
memory/3700-13-0x0000000004310000-0x0000000004378000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads