badrabbit | f1bbcc5c678d174d858ae089f4494e3ea8bcfc418098d61804a15e437f08aff7

Target

[email protected]
Size

239KB
MD5

2f8f6e90ca211d7ef5f6cf3c995a40e7
SHA1

f8940f280c81273b11a20d4bfb43715155f6e122
SHA256

1f5a26f24a2bfdd301008f0cc51a6c3762f41b926f974c814f1ecaa4cb28e5e6
SHA512

2b38475550edee5519e33bd18fea510ad73345a27c20f6457710498d34e3d0cf05b0f96f32d018e7dc154a6f2232ea7e3145fd0ed5fb498f9e4702a4be1bb9c8

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

Executes dropped EXE 1 IoCs

Processes:

9CF3.tmp

pid	Process
2288	9CF3.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

Modifies extensions of user files 1 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

rundll32.exe

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\DenyRevoke.tiff	rundll32.exe

Drops file in Windows directory 4 IoCs

Processes:

rundll32.exe

description	ioc	Process
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\9CF3.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

T1053

Processes:

schtasks.exeschtasks.exe

pid	Process
1784	schtasks.exe
3908	schtasks.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

LogonUI.exe

description	ioc	Process
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\ColorizationColorBalance = "89"	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\ColorizationAfterglow = "3288365271"	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\ColorizationBlurBalance = "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\Explorer\Accent\StartColorMenu = "4288567808"	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\ColorizationColor = "3288365271"	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\Themes\History\AutoColor = "0"	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

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

rundll32.exe9CF3.tmp

pid	Process
2612	rundll32.exe
2612	rundll32.exe
2612	rundll32.exe
2612	rundll32.exe
2288	9CF3.tmp
2288	9CF3.tmp
2288	9CF3.tmp
2288	9CF3.tmp
2288	9CF3.tmp
2288	9CF3.tmp
2612	rundll32.exe
2612	rundll32.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

rundll32.exe9CF3.tmpwevtutil.exewevtutil.exewevtutil.exewevtutil.exe

description	pid	Process
Token: SeShutdownPrivilege	2612	rundll32.exe
Token: SeDebugPrivilege	2612	rundll32.exe
Token: SeTcbPrivilege	2612	rundll32.exe
Token: SeDebugPrivilege	2288	9CF3.tmp
Token: SeSecurityPrivilege	3580	wevtutil.exe
Token: SeBackupPrivilege	3580	wevtutil.exe
Token: SeSecurityPrivilege	3500	wevtutil.exe
Token: SeBackupPrivilege	3500	wevtutil.exe
Token: SeSecurityPrivilege	2196	wevtutil.exe
Token: SeBackupPrivilege	2196	wevtutil.exe
Token: SeSecurityPrivilege	2844	wevtutil.exe
Token: SeBackupPrivilege	2844	wevtutil.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

[email protected]

pid	Process
984	[email protected]

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LogonUI.exe

pid	Process
1056	LogonUI.exe

Suspicious use of WriteProcessMemory 47 IoCs

Processes:

rundll32.exerundll32.execmd.execmd.execmd.execmd.execmd.exe

description	pid	Process	procid_target
PID 3076 wrote to memory of 2612	3076	rundll32.exe	79
PID 3076 wrote to memory of 2612	3076	rundll32.exe	79
PID 3076 wrote to memory of 2612	3076	rundll32.exe	79
PID 2612 wrote to memory of 1468	2612	rundll32.exe	80
PID 2612 wrote to memory of 1468	2612	rundll32.exe	80
PID 2612 wrote to memory of 1468	2612	rundll32.exe	80
PID 1468 wrote to memory of 1060	1468	cmd.exe	82
PID 1468 wrote to memory of 1060	1468	cmd.exe	82
PID 1468 wrote to memory of 1060	1468	cmd.exe	82
PID 2612 wrote to memory of 2132	2612	rundll32.exe	83
PID 2612 wrote to memory of 2132	2612	rundll32.exe	83
PID 2612 wrote to memory of 2132	2612	rundll32.exe	83
PID 2132 wrote to memory of 1784	2132	cmd.exe	85
PID 2132 wrote to memory of 1784	2132	cmd.exe	85
PID 2132 wrote to memory of 1784	2132	cmd.exe	85
PID 2612 wrote to memory of 988	2612	rundll32.exe	86
PID 2612 wrote to memory of 988	2612	rundll32.exe	86
PID 2612 wrote to memory of 988	2612	rundll32.exe	86
PID 2612 wrote to memory of 2288	2612	rundll32.exe	87
PID 2612 wrote to memory of 2288	2612	rundll32.exe	87
PID 988 wrote to memory of 3908	988	cmd.exe	90
PID 988 wrote to memory of 3908	988	cmd.exe	90
PID 988 wrote to memory of 3908	988	cmd.exe	90
PID 2612 wrote to memory of 1372	2612	rundll32.exe	92
PID 2612 wrote to memory of 1372	2612	rundll32.exe	92
PID 2612 wrote to memory of 1372	2612	rundll32.exe	92
PID 1372 wrote to memory of 3580	1372	cmd.exe	94
PID 1372 wrote to memory of 3580	1372	cmd.exe	94
PID 1372 wrote to memory of 3580	1372	cmd.exe	94
PID 1372 wrote to memory of 3500	1372	cmd.exe	95
PID 1372 wrote to memory of 3500	1372	cmd.exe	95
PID 1372 wrote to memory of 3500	1372	cmd.exe	95
PID 1372 wrote to memory of 2196	1372	cmd.exe	96
PID 1372 wrote to memory of 2196	1372	cmd.exe	96
PID 1372 wrote to memory of 2196	1372	cmd.exe	96
PID 1372 wrote to memory of 2844	1372	cmd.exe	97
PID 1372 wrote to memory of 2844	1372	cmd.exe	97
PID 1372 wrote to memory of 2844	1372	cmd.exe	97
PID 1372 wrote to memory of 4052	1372	cmd.exe	98
PID 1372 wrote to memory of 4052	1372	cmd.exe	98
PID 1372 wrote to memory of 4052	1372	cmd.exe	98
PID 2612 wrote to memory of 264	2612	rundll32.exe	99
PID 2612 wrote to memory of 264	2612	rundll32.exe	99
PID 2612 wrote to memory of 264	2612	rundll32.exe	99
PID 264 wrote to memory of 576	264	cmd.exe	102
PID 264 wrote to memory of 576	264	cmd.exe	102
PID 264 wrote to memory of 576	264	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
1⤵
- Suspicious use of FindShellTrayWindow
PID:984

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\infpub.dat",#2 15
1⤵
- Suspicious use of WriteProcessMemory
PID:3076
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
  2⤵
  - Modifies extensions of user files
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2612
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1468
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:1060
- - 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 528020228 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2132
  - - 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 528020228 && exit"
      4⤵
      Creates scheduled task(s)
      PID:1784
- - 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 07:02:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:988
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 07:02:00
      4⤵
      Creates scheduled task(s)
      PID:3908
- - C:\Windows\9CF3.tmp
    "C:\Windows\9CF3.tmp" \\.\pipe\{69CB9C6A-65B5-4E04-8908-AA5584CD1544}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2288
- - 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:1372
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Setup
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:3580
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl System
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:3500
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Security
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2196
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Application
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2844
  - - C:\Windows\SysWOW64\fsutil.exe
      fsutil usn deletejournal /D C:
      4⤵
      PID:4052
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN drogon
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:264
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN drogon
      4⤵
      PID:576

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3ad2855 /state1:0x41c64e6d
1⤵
- Modifies WinLogon to allow AutoLogon
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1056

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Winlogon Helper DLL

T1004

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Indicator Removal on Host

T1070

Modify Registry

T1112

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\9CF3.tmp

MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
C:\Windows\9CF3.tmp

MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
memory/264-17-0x0000000000000000-mapping.dmp

Download
memory/576-18-0x0000000000000000-mapping.dmp

Download
memory/988-6-0x0000000000000000-mapping.dmp

Download
memory/1060-3-0x0000000000000000-mapping.dmp

Download
memory/1372-11-0x0000000000000000-mapping.dmp

Download
memory/1468-2-0x0000000000000000-mapping.dmp

Download
memory/1784-5-0x0000000000000000-mapping.dmp

Download
memory/2132-4-0x0000000000000000-mapping.dmp

Download
memory/2196-14-0x0000000000000000-mapping.dmp

Download
memory/2288-7-0x0000000000000000-mapping.dmp

Download
memory/2612-0-0x0000000000000000-mapping.dmp

Download
memory/2612-1-0x0000000000E10000-0x0000000000E78000-memory.dmp

Filesize
416KB

Download
memory/2844-15-0x0000000000000000-mapping.dmp

Download
memory/3500-13-0x0000000000000000-mapping.dmp

Download
memory/3580-12-0x0000000000000000-mapping.dmp

Download
memory/3908-10-0x0000000000000000-mapping.dmp

Download
memory/4052-16-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads