badrabbit | f1bbcc5c678d174d858ae089f4494e3ea8bcfc418098d61804a15e437f08aff7

Target

Endermanch@CleanThis.exe
Size

618KB
MD5

a50fc0da1d2b3c4aa8a6adaccf69a5de
SHA1

e001f4043ab4be644ea10e0d65303d6e57b31ffe
SHA256

cf6eb8377789e316629c0396a2dbb53c69b5fd67bbd0e7163b8d305aaa756e90
SHA512

4bbc7676391ed4085f628d1f4e1f0af16f5cd6fd9efb8c61176bccdb6ee03b06896c6ddfba9fcf363b133ade3a8a1b8cd17ef92d8eb9adeec247f9bd41dbec2b

Score

10^/10

badrabbit bootkit evasion persistence 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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

Endermanch@CleanThis.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\gog.exe"	Endermanch@CleanThis.exe

Clears Windows event logs 1 TTPs
evasion ransomware

Indicator Removal on Host
T1070
Blacklisted process makes network request 7 IoCs

Processes:

rundll32.exe

flow pid process

219 4244 rundll32.exe
232 4244 rundll32.exe
244 4244 rundll32.exe
255 4244 rundll32.exe
447 4244 rundll32.exe
463 4244 rundll32.exe
474 4244 rundll32.exe
Executes dropped EXE 1 IoCs

Processes:

DB04.tmp

pid process

968 DB04.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
219	4244	rundll32.exe
232	4244	rundll32.exe
244	4244	rundll32.exe
255	4244	rundll32.exe
447	4244	rundll32.exe
463	4244	rundll32.exe
474	4244	rundll32.exe

pid	process
968	DB04.tmp

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

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Endermanch@CleanThis.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	Endermanch@CleanThis.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	Endermanch@CleanThis.exe

Drops file in Windows directory 4 IoCs

Processes:

rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\DB04.tmp	rundll32.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

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

648 schtasks.exe
1376 schtasks.exe

pid	process
648	schtasks.exe
1376	schtasks.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

LogonUI.exe

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 = "4288567808"	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 (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\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	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\CurrentVersion\Themes\History\AutoColor = "0"	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\EnableWindowColorization = "1"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 14742 IoCs

Processes:

Endermanch@CleanThis.exe

pid	process
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe
4708	Endermanch@CleanThis.exe

Suspicious use of AdjustPrivilegeToken 13 IoCs

Processes:

Endermanch@CleanThis.exerundll32.exeDB04.tmpwevtutil.exewevtutil.exewevtutil.exewevtutil.exe

description	pid	process
Token: SeShutdownPrivilege	4708	Endermanch@CleanThis.exe
Token: SeShutdownPrivilege	4244	rundll32.exe
Token: SeDebugPrivilege	4244	rundll32.exe
Token: SeTcbPrivilege	4244	rundll32.exe
Token: SeDebugPrivilege	968	DB04.tmp
Token: SeSecurityPrivilege	4532	wevtutil.exe
Token: SeBackupPrivilege	4532	wevtutil.exe
Token: SeSecurityPrivilege	3928	wevtutil.exe
Token: SeBackupPrivilege	3928	wevtutil.exe
Token: SeSecurityPrivilege	3788	wevtutil.exe
Token: SeBackupPrivilege	3788	wevtutil.exe
Token: SeSecurityPrivilege	2688	wevtutil.exe
Token: SeBackupPrivilege	2688	wevtutil.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

Endermanch@CleanThis.exeLogonUI.exe

pid process

4708 Endermanch@CleanThis.exe
4708 Endermanch@CleanThis.exe
4372 LogonUI.exe

Suspicious use of WriteProcessMemory 47 IoCs

Processes:

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

description	pid	process	target process
PID 4252 wrote to memory of 4244	4252	rundll32.exe	rundll32.exe
PID 4252 wrote to memory of 4244	4252	rundll32.exe	rundll32.exe
PID 4252 wrote to memory of 4244	4252	rundll32.exe	rundll32.exe
PID 4244 wrote to memory of 1864	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 1864	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 1864	4244	rundll32.exe	cmd.exe
PID 1864 wrote to memory of 3280	1864	cmd.exe	schtasks.exe
PID 1864 wrote to memory of 3280	1864	cmd.exe	schtasks.exe
PID 1864 wrote to memory of 3280	1864	cmd.exe	schtasks.exe
PID 4244 wrote to memory of 536	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 536	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 536	4244	rundll32.exe	cmd.exe
PID 536 wrote to memory of 648	536	cmd.exe	schtasks.exe
PID 536 wrote to memory of 648	536	cmd.exe	schtasks.exe
PID 536 wrote to memory of 648	536	cmd.exe	schtasks.exe
PID 4244 wrote to memory of 808	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 808	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 808	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 968	4244	rundll32.exe	DB04.tmp
PID 4244 wrote to memory of 968	4244	rundll32.exe	DB04.tmp
PID 808 wrote to memory of 1376	808	cmd.exe	schtasks.exe
PID 808 wrote to memory of 1376	808	cmd.exe	schtasks.exe
PID 808 wrote to memory of 1376	808	cmd.exe	schtasks.exe
PID 4244 wrote to memory of 2944	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 2944	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 2944	4244	rundll32.exe	cmd.exe
PID 2944 wrote to memory of 4532	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 4532	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 4532	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 3928	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 3928	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 3928	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 3788	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 3788	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 3788	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 2688	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 2688	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 2688	2944	cmd.exe	wevtutil.exe
PID 2944 wrote to memory of 2696	2944	cmd.exe	fsutil.exe
PID 2944 wrote to memory of 2696	2944	cmd.exe	fsutil.exe
PID 2944 wrote to memory of 2696	2944	cmd.exe	fsutil.exe
PID 4244 wrote to memory of 4648	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 4648	4244	rundll32.exe	cmd.exe
PID 4244 wrote to memory of 4648	4244	rundll32.exe	cmd.exe
PID 4648 wrote to memory of 2884	4648	cmd.exe	schtasks.exe
PID 4648 wrote to memory of 2884	4648	cmd.exe	schtasks.exe
PID 4648 wrote to memory of 2884	4648	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Endermanch@CleanThis.exe
"C:\Users\Admin\AppData\Local\Temp\Endermanch@CleanThis.exe"
1⤵
- Modifies WinLogon for persistence
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4708

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\infpub.dat",#2 15
1⤵
- Suspicious use of WriteProcessMemory
PID:4252

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 use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4244

C:\Windows\SysWOW64\cmd.exe
/c schtasks /Delete /F /TN rhaegal
3⤵
- Suspicious use of WriteProcessMemory
PID:1864

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /F /TN rhaegal
4⤵
PID:3280

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 3587941686 && exit"
3⤵
- Suspicious use of WriteProcessMemory
PID:536

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 3587941686 && exit"
4⤵
- Creates scheduled task(s)
PID:648

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:808

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:1376

C:\Windows\DB04.tmp
"C:\Windows\DB04.tmp" \\.\pipe\{DD5C21E4-8A05-4C54-ADE7-6DBAF41D3B8F}
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:968

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:2944

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl Setup
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4532

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl System
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3928

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl Security
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3788

C:\Windows\SysWOW64\wevtutil.exe
wevtutil cl Application
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2688

C:\Windows\SysWOW64\fsutil.exe
fsutil usn deletejournal /D C:
4⤵
PID:2696

C:\Windows\SysWOW64\cmd.exe
/c schtasks /Delete /F /TN drogon
3⤵
- Suspicious use of WriteProcessMemory
PID:4648

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /F /TN drogon
4⤵
PID:2884

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:4372

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

Modify Registry

T1112

Indicator Removal on Host

T1070

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

T1490

Data Destruction

T1485

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Downloads

C:\Windows\DB04.tmp
MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
C:\Windows\DB04.tmp
MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
memory/536-4-0x0000000000000000-mapping.dmp

Download
memory/648-5-0x0000000000000000-mapping.dmp

Download
memory/808-6-0x0000000000000000-mapping.dmp

Download
memory/968-7-0x0000000000000000-mapping.dmp

Download
memory/1376-10-0x0000000000000000-mapping.dmp

Download
memory/1864-2-0x0000000000000000-mapping.dmp

Download
memory/2688-15-0x0000000000000000-mapping.dmp

Download
memory/2696-16-0x0000000000000000-mapping.dmp

Download
memory/2884-18-0x0000000000000000-mapping.dmp

Download
memory/2944-11-0x0000000000000000-mapping.dmp

Download
memory/3280-3-0x0000000000000000-mapping.dmp

Download
memory/3788-14-0x0000000000000000-mapping.dmp

Download
memory/3928-13-0x0000000000000000-mapping.dmp

Download
memory/4244-1-0x0000000003480000-0x00000000034E8000-memory.dmp

Filesize
416KB

Download
memory/4244-0-0x0000000000000000-mapping.dmp

Download
memory/4532-12-0x0000000000000000-mapping.dmp

Download
memory/4648-17-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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