badrabbit | f1bbcc5c678d174d858ae089f4494e3ea8bcfc418098d61804a15e437f08aff7

Target

Endermanch@BadRabbit.exe
Size

431KB
MD5

fbbdc39af1139aebba4da004475e8839
SHA1

de5c8d858e6e41da715dca1c019df0bfb92d32c0
SHA256

630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da
SHA512

74eca8c01de215b33d5ceea1fda3f3bef96b513f58a750dba04b0de36f7ef4f7846a6431d52879ca0d8641bfd504d4721a9a96fa2e18c6888fd67fa77686af87

Score

10^/10

badrabbit bootkit 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
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
Clears Windows event logs 1 TTPs
evasion ransomware

Indicator Removal on Host
T1070
Blacklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

295 2664 rundll32.exe
308 2664 rundll32.exe
Executes dropped EXE 1 IoCs

Processes:

9B0D.tmp

pid process

1312 9B0D.tmp
Modifies WinLogon to allow AutoLogon 2 TTPs 1 IoCs
Enables rebooting of the machine without requiring login credentials.
ransomware bootkit

Winlogon Helper DLL
T1004

Modify Registry
T1112

Processes:

LogonUI.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoLogonChecked LogonUI.exe

flow	pid	process
295	2664	rundll32.exe
308	2664	rundll32.exe

pid	process
1312	9B0D.tmp

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoLogonChecked	LogonUI.exe

Drops file in Windows directory 5 IoCs

Processes:

rundll32.exeEndermanch@BadRabbit.exe

description	ioc	process
File created	C:\Windows\dispci.exe	rundll32.exe
File opened for modification	C:\Windows\9B0D.tmp	rundll32.exe
File created	C:\Windows\infpub.dat	Endermanch@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
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1124 schtasks.exe
2728 schtasks.exe

pid	process
1124	schtasks.exe
2728	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\DWM\EnableWindowColorization = "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\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	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\ColorizationColor = "3288365271"	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\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

rundll32.exe9B0D.tmp

pid process

2664 rundll32.exe
2664 rundll32.exe
2664 rundll32.exe
2664 rundll32.exe
1312 9B0D.tmp
1312 9B0D.tmp
1312 9B0D.tmp
1312 9B0D.tmp
1312 9B0D.tmp
1312 9B0D.tmp

pid	process
2664	rundll32.exe
2664	rundll32.exe
2664	rundll32.exe
2664	rundll32.exe
1312	9B0D.tmp
1312	9B0D.tmp
1312	9B0D.tmp
1312	9B0D.tmp
1312	9B0D.tmp
1312	9B0D.tmp

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

rundll32.exe9B0D.tmpwevtutil.exewevtutil.exewevtutil.exewevtutil.exe

description	pid	process
Token: SeShutdownPrivilege	2664	rundll32.exe
Token: SeDebugPrivilege	2664	rundll32.exe
Token: SeTcbPrivilege	2664	rundll32.exe
Token: SeDebugPrivilege	1312	9B0D.tmp
Token: SeSecurityPrivilege	3320	wevtutil.exe
Token: SeBackupPrivilege	3320	wevtutil.exe
Token: SeSecurityPrivilege	1404	wevtutil.exe
Token: SeBackupPrivilege	1404	wevtutil.exe
Token: SeSecurityPrivilege	3100	wevtutil.exe
Token: SeBackupPrivilege	3100	wevtutil.exe
Token: SeSecurityPrivilege	3880	wevtutil.exe
Token: SeBackupPrivilege	3880	wevtutil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LogonUI.exe

pid process

3508 LogonUI.exe

pid	process
3508	LogonUI.exe

Suspicious use of WriteProcessMemory 47 IoCs

Processes:

Endermanch@BadRabbit.exerundll32.execmd.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1152 wrote to memory of 2664	1152	Endermanch@BadRabbit.exe	rundll32.exe
PID 1152 wrote to memory of 2664	1152	Endermanch@BadRabbit.exe	rundll32.exe
PID 1152 wrote to memory of 2664	1152	Endermanch@BadRabbit.exe	rundll32.exe
PID 2664 wrote to memory of 1028	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 1028	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 1028	2664	rundll32.exe	cmd.exe
PID 1028 wrote to memory of 3412	1028	cmd.exe	schtasks.exe
PID 1028 wrote to memory of 3412	1028	cmd.exe	schtasks.exe
PID 1028 wrote to memory of 3412	1028	cmd.exe	schtasks.exe
PID 2664 wrote to memory of 1956	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 1956	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 1956	2664	rundll32.exe	cmd.exe
PID 1956 wrote to memory of 2728	1956	cmd.exe	schtasks.exe
PID 1956 wrote to memory of 2728	1956	cmd.exe	schtasks.exe
PID 1956 wrote to memory of 2728	1956	cmd.exe	schtasks.exe
PID 2664 wrote to memory of 4076	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 4076	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 4076	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 1312	2664	rundll32.exe	9B0D.tmp
PID 2664 wrote to memory of 1312	2664	rundll32.exe	9B0D.tmp
PID 4076 wrote to memory of 1124	4076	cmd.exe	schtasks.exe
PID 4076 wrote to memory of 1124	4076	cmd.exe	schtasks.exe
PID 4076 wrote to memory of 1124	4076	cmd.exe	schtasks.exe
PID 2664 wrote to memory of 4032	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 4032	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 4032	2664	rundll32.exe	cmd.exe
PID 4032 wrote to memory of 3320	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 3320	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 3320	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 1404	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 1404	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 1404	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 3100	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 3100	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 3100	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 3880	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 3880	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 3880	4032	cmd.exe	wevtutil.exe
PID 4032 wrote to memory of 4040	4032	cmd.exe	fsutil.exe
PID 4032 wrote to memory of 4040	4032	cmd.exe	fsutil.exe
PID 4032 wrote to memory of 4040	4032	cmd.exe	fsutil.exe
PID 2664 wrote to memory of 3756	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 3756	2664	rundll32.exe	cmd.exe
PID 2664 wrote to memory of 3756	2664	rundll32.exe	cmd.exe
PID 3756 wrote to memory of 696	3756	cmd.exe	schtasks.exe
PID 3756 wrote to memory of 696	3756	cmd.exe	schtasks.exe
PID 3756 wrote to memory of 696	3756	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Endermanch@BadRabbit.exe
"C:\Users\Admin\AppData\Local\Temp\Endermanch@BadRabbit.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
2⤵
- Blacklisted process makes network request
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2664

C:\Windows\SysWOW64\cmd.exe
/c schtasks /Delete /F /TN rhaegal
3⤵
- Suspicious use of WriteProcessMemory
PID:1028

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /F /TN rhaegal
4⤵
PID:3412

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 3648423931 && exit"
3⤵
- Suspicious use of WriteProcessMemory
PID:1956

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 3648423931 && exit"
4⤵
- Creates scheduled task(s)
PID:2728

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 06:59:00
3⤵
- Suspicious use of WriteProcessMemory
PID:4076

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 06:59:00
4⤵
- Creates scheduled task(s)
PID:1124

C:\Windows\9B0D.tmp
"C:\Windows\9B0D.tmp" \\.\pipe\{38E23F7D-634F-42C4-845E-BD602073FE9F}
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1312

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:4032

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl Setup
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3320

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl System
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1404

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl Security
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3100

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl Application
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3880

C:\Windows\SysWOW64\fsutil.exe
fsutil usn deletejournal /D C:
4⤵
PID:4040

C:\Windows\SysWOW64\cmd.exe
/c schtasks /Delete /F /TN drogon
3⤵
- Suspicious use of WriteProcessMemory
PID:3756

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /F /TN drogon
4⤵
PID:696

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3ad4055 /state1:0x41c64e6d
1⤵
- Modifies WinLogon to allow AutoLogon
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3508

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Winlogon Helper DLL

T1004

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Indicator Removal on Host

T1070

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

T1490

Data Destruction

T1485

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Downloads

C:\Windows\9B0D.tmp
MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
C:\Windows\9B0D.tmp
MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
C:\Windows\infpub.dat
MD5
1d724f95c61f1055f0d02c2154bbccd3

SHA1
79116fe99f2b421c52ef64097f0f39b815b20907

SHA256
579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648

SHA512
f2d7b018d1516df1c97cfff5507957c75c6d9bf8e2ce52ae0052706f4ec62f13eba6d7be17e6ad2b693fdd58e1fd091c37f17bd2b948cdcd9b95b4ad428c0113

Download Submit
memory/696-19-0x0000000000000000-mapping.dmp

Download
memory/1028-3-0x0000000000000000-mapping.dmp

Download
memory/1124-11-0x0000000000000000-mapping.dmp

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memory/1312-8-0x0000000000000000-mapping.dmp

Download
memory/1404-14-0x0000000000000000-mapping.dmp

Download
memory/1956-5-0x0000000000000000-mapping.dmp

Download
memory/2664-0-0x0000000000000000-mapping.dmp

Download
memory/2664-2-0x0000000004930000-0x0000000004998000-memory.dmp

Filesize
416KB

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memory/2728-6-0x0000000000000000-mapping.dmp

Download
memory/3100-15-0x0000000000000000-mapping.dmp

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memory/3320-13-0x0000000000000000-mapping.dmp

Download
memory/3412-4-0x0000000000000000-mapping.dmp

Download
memory/3756-18-0x0000000000000000-mapping.dmp

Download
memory/3880-16-0x0000000000000000-mapping.dmp

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memory/4032-12-0x0000000000000000-mapping.dmp

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memory/4040-17-0x0000000000000000-mapping.dmp

Download
memory/4076-7-0x0000000000000000-mapping.dmp

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Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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