badrabbit | 630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da

Analysis

max time kernel
906s
max time network
908s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
04-04-2024 22:33

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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
2656	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
1544	wevtutil.exe
3392	wevtutil.exe
5116	wevtutil.exe
1860	wevtutil.exe

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

resource	yara_rule
behavioral3/files/0x000300000002a723-20.dat	mimikatz

Blocklisted process makes network request 5 IoCs

flow	pid	Process
289	1408	rundll32.exe
375	1408	rundll32.exe
416	1408	rundll32.exe
446	1408	rundll32.exe
475	1408	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
2340	5832.tmp

Loads dropped DLL 1 IoCs

pid	Process
1408	rundll32.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\dispci.exe	rundll32.exe
File opened for modification	C:\Windows\5832.tmp	rundll32.exe
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

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
2584	schtasks.exe
1184	schtasks.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4290799360"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292114432"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	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\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00	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\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\DWM\AccentColor = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "156"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1408	rundll32.exe
1408	rundll32.exe
1408	rundll32.exe
1408	rundll32.exe
2340	5832.tmp
2340	5832.tmp
2340	5832.tmp
2340	5832.tmp
2340	5832.tmp
2340	5832.tmp

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1408	rundll32.exe
Token: SeDebugPrivilege	1408	rundll32.exe
Token: SeTcbPrivilege	1408	rundll32.exe
Token: SeDebugPrivilege	2340	5832.tmp
Token: SeSecurityPrivilege	1544	wevtutil.exe
Token: SeBackupPrivilege	1544	wevtutil.exe
Token: SeSecurityPrivilege	3392	wevtutil.exe
Token: SeBackupPrivilege	3392	wevtutil.exe
Token: SeSecurityPrivilege	5116	wevtutil.exe
Token: SeBackupPrivilege	5116	wevtutil.exe
Token: SeSecurityPrivilege	1860	wevtutil.exe
Token: SeBackupPrivilege	1860	wevtutil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
484	LogonUI.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 1408	4932	BadRabbit.exe	78
PID 4932 wrote to memory of 1408	4932	BadRabbit.exe	78
PID 4932 wrote to memory of 1408	4932	BadRabbit.exe	78
PID 1408 wrote to memory of 2908	1408	rundll32.exe	79
PID 1408 wrote to memory of 2908	1408	rundll32.exe	79
PID 1408 wrote to memory of 2908	1408	rundll32.exe	79
PID 2908 wrote to memory of 4836	2908	cmd.exe	81
PID 2908 wrote to memory of 4836	2908	cmd.exe	81
PID 2908 wrote to memory of 4836	2908	cmd.exe	81
PID 1408 wrote to memory of 1848	1408	rundll32.exe	82
PID 1408 wrote to memory of 1848	1408	rundll32.exe	82
PID 1408 wrote to memory of 1848	1408	rundll32.exe	82
PID 1848 wrote to memory of 2584	1848	cmd.exe	84
PID 1848 wrote to memory of 2584	1848	cmd.exe	84
PID 1848 wrote to memory of 2584	1848	cmd.exe	84
PID 1408 wrote to memory of 4820	1408	rundll32.exe	85
PID 1408 wrote to memory of 4820	1408	rundll32.exe	85
PID 1408 wrote to memory of 4820	1408	rundll32.exe	85
PID 1408 wrote to memory of 2340	1408	rundll32.exe	87
PID 1408 wrote to memory of 2340	1408	rundll32.exe	87
PID 4820 wrote to memory of 1184	4820	cmd.exe	89
PID 4820 wrote to memory of 1184	4820	cmd.exe	89
PID 4820 wrote to memory of 1184	4820	cmd.exe	89
PID 1408 wrote to memory of 2500	1408	rundll32.exe	93
PID 1408 wrote to memory of 2500	1408	rundll32.exe	93
PID 1408 wrote to memory of 2500	1408	rundll32.exe	93
PID 2500 wrote to memory of 1544	2500	cmd.exe	95
PID 2500 wrote to memory of 1544	2500	cmd.exe	95
PID 2500 wrote to memory of 1544	2500	cmd.exe	95
PID 2500 wrote to memory of 3392	2500	cmd.exe	96
PID 2500 wrote to memory of 3392	2500	cmd.exe	96
PID 2500 wrote to memory of 3392	2500	cmd.exe	96
PID 2500 wrote to memory of 5116	2500	cmd.exe	97
PID 2500 wrote to memory of 5116	2500	cmd.exe	97
PID 2500 wrote to memory of 5116	2500	cmd.exe	97
PID 2500 wrote to memory of 1860	2500	cmd.exe	98
PID 2500 wrote to memory of 1860	2500	cmd.exe	98
PID 2500 wrote to memory of 1860	2500	cmd.exe	98
PID 2500 wrote to memory of 2656	2500	cmd.exe	99
PID 2500 wrote to memory of 2656	2500	cmd.exe	99
PID 2500 wrote to memory of 2656	2500	cmd.exe	99
PID 1408 wrote to memory of 3040	1408	rundll32.exe	100
PID 1408 wrote to memory of 3040	1408	rundll32.exe	100
PID 1408 wrote to memory of 3040	1408	rundll32.exe	100

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:4932
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1408
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2908
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:4836
- - 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 4188235203 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1848
  - - 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 4188235203 && exit"
      4⤵
      Creates scheduled task(s)
      PID:2584
- - 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:4820
  - - 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:1184
- - C:\Windows\5832.tmp
    "C:\Windows\5832.tmp" \\.\pipe\{66B55A41-B0FA-4F2B-86F3-8F8E85AF0391}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2340
- - 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:2500
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Setup
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:1544
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl System
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:3392
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Security
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:5116
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Application
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:1860
  - - C:\Windows\SysWOW64\fsutil.exe
      fsutil usn deletejournal /D C:
      4⤵
      Deletes NTFS Change Journal
      PID:2656
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN drogon
    3⤵
    PID:3040

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2940

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39e2855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:484

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

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Downloads

C:\Windows\5832.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/1408-3-0x0000000002C50000-0x0000000002CB8000-memory.dmp

Filesize
416KB

Download
memory/1408-11-0x0000000002C50000-0x0000000002CB8000-memory.dmp

Filesize
416KB

Download
memory/1408-14-0x0000000002C50000-0x0000000002CB8000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads