badrabbit | 2a45e44be359fba4c85591e7b13d1ec772ed181adc41254d8b00d31b2d15878e

Reason

Machine shutdown

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

2004 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

1496 wevtutil.exe
132 wevtutil.exe
1472 wevtutil.exe
1936 wevtutil.exe

pid	process
2004	fsutil.exe

pid	process
1496	wevtutil.exe
132	wevtutil.exe
1472	wevtutil.exe
1936	wevtutil.exe

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

Processes:

resource	yara_rule
C:\Windows\569C.tmp	mimikatz

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

326 3876 rundll32.exe
372 3876 rundll32.exe
Executes dropped EXE 1 IoCs

Processes:

569C.tmp

pid process

720 569C.tmp
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

3876 rundll32.exe

flow	pid	process
326	3876	rundll32.exe
372	3876	rundll32.exe

pid	process
720	569C.tmp

pid	process
3876	rundll32.exe

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\569C.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

1816 schtasks.exe
1036 schtasks.exe

pid	process
1816	schtasks.exe
1036	schtasks.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

LogonUI.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	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\AccentColor = "4292114432"	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 = "198"	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\DWM\ColorizationColor = "3288365268"	LogonUI.exe
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\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\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

rundll32.exe569C.tmp

pid process

3876 rundll32.exe
3876 rundll32.exe
3876 rundll32.exe
3876 rundll32.exe
720 569C.tmp
720 569C.tmp
720 569C.tmp
720 569C.tmp
720 569C.tmp
720 569C.tmp

pid	process
3876	rundll32.exe
3876	rundll32.exe
3876	rundll32.exe
3876	rundll32.exe
720	569C.tmp
720	569C.tmp
720	569C.tmp
720	569C.tmp
720	569C.tmp
720	569C.tmp

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

rundll32.exe569C.tmpwevtutil.exewevtutil.exewevtutil.exewevtutil.exe

description	pid	process
Token: SeShutdownPrivilege	3876	rundll32.exe
Token: SeDebugPrivilege	3876	rundll32.exe
Token: SeTcbPrivilege	3876	rundll32.exe
Token: SeDebugPrivilege	720	569C.tmp
Token: SeSecurityPrivilege	132	wevtutil.exe
Token: SeBackupPrivilege	132	wevtutil.exe
Token: SeSecurityPrivilege	1472	wevtutil.exe
Token: SeBackupPrivilege	1472	wevtutil.exe
Token: SeSecurityPrivilege	1936	wevtutil.exe
Token: SeBackupPrivilege	1936	wevtutil.exe
Token: SeSecurityPrivilege	1496	wevtutil.exe
Token: SeBackupPrivilege	1496	wevtutil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LogonUI.exe

pid process

3504 LogonUI.exe

pid	process
3504	LogonUI.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

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

description	pid	process	target process
PID 4924 wrote to memory of 3876	4924	Bad Rabit.exe	rundll32.exe
PID 4924 wrote to memory of 3876	4924	Bad Rabit.exe	rundll32.exe
PID 4924 wrote to memory of 3876	4924	Bad Rabit.exe	rundll32.exe
PID 3876 wrote to memory of 2784	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 2784	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 2784	3876	rundll32.exe	cmd.exe
PID 2784 wrote to memory of 3476	2784	cmd.exe	schtasks.exe
PID 2784 wrote to memory of 3476	2784	cmd.exe	schtasks.exe
PID 2784 wrote to memory of 3476	2784	cmd.exe	schtasks.exe
PID 3876 wrote to memory of 4264	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 4264	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 4264	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 1964	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 1964	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 1964	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 720	3876	rundll32.exe	569C.tmp
PID 3876 wrote to memory of 720	3876	rundll32.exe	569C.tmp
PID 1964 wrote to memory of 1036	1964	cmd.exe	schtasks.exe
PID 1964 wrote to memory of 1036	1964	cmd.exe	schtasks.exe
PID 1964 wrote to memory of 1036	1964	cmd.exe	schtasks.exe
PID 4264 wrote to memory of 1816	4264	cmd.exe	schtasks.exe
PID 4264 wrote to memory of 1816	4264	cmd.exe	schtasks.exe
PID 4264 wrote to memory of 1816	4264	cmd.exe	schtasks.exe
PID 3876 wrote to memory of 8	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 8	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 8	3876	rundll32.exe	cmd.exe
PID 8 wrote to memory of 132	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 132	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 132	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 1472	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 1472	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 1472	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 1936	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 1936	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 1936	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 1496	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 1496	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 1496	8	cmd.exe	wevtutil.exe
PID 8 wrote to memory of 2004	8	cmd.exe	fsutil.exe
PID 8 wrote to memory of 2004	8	cmd.exe	fsutil.exe
PID 8 wrote to memory of 2004	8	cmd.exe	fsutil.exe
PID 3876 wrote to memory of 2080	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 2080	3876	rundll32.exe	cmd.exe
PID 3876 wrote to memory of 2080	3876	rundll32.exe	cmd.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:4924

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:3876

C:\Windows\SysWOW64\cmd.exe
/c schtasks /Delete /F /TN rhaegal
3⤵
- Suspicious use of WriteProcessMemory
PID:2784

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /F /TN rhaegal
4⤵
PID:3476

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 2231512642 && exit"
3⤵
- Suspicious use of WriteProcessMemory
PID:4264

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 2231512642 && exit"
4⤵
- Creates scheduled task(s)
PID:1816

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 09:10:00
3⤵
- Suspicious use of WriteProcessMemory
PID:1964

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 09:10:00
4⤵
- Creates scheduled task(s)
PID:1036

C:\Windows\569C.tmp
"C:\Windows\569C.tmp" \\.\pipe\{3957EEAA-6831-46C4-BF01-205E2815B051}
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:720

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:8

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl Setup
4⤵
- Clears Windows event logs
- Suspicious use of AdjustPrivilegeToken
PID:132

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl System
4⤵
- Clears Windows event logs
- Suspicious use of AdjustPrivilegeToken
PID:1472

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl Security
4⤵
- Clears Windows event logs
- Suspicious use of AdjustPrivilegeToken
PID:1936

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl Application
4⤵
- Clears Windows event logs
- Suspicious use of AdjustPrivilegeToken
PID:1496

C:\Windows\SysWOW64\fsutil.exe
fsutil usn deletejournal /D C:
4⤵
- Deletes NTFS Change Journal
PID:2004

C:\Windows\SysWOW64\cmd.exe
/c schtasks /Delete /F /TN drogon
3⤵
PID:2080

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39ef855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3504

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\569C.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/3876-4-0x00000000029A0000-0x0000000002A08000-memory.dmp

Filesize
416KB

Download
memory/3876-11-0x00000000029A0000-0x0000000002A08000-memory.dmp

Filesize
416KB

Download
memory/3876-14-0x00000000029A0000-0x0000000002A08000-memory.dmp

Filesize
416KB

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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