badrabbit | 9c9e87c0c492673453acb1a253c8ae23ee8245531c37d6ef8ead76b6e2d1562e

Reason

Machine shutdown

General

Target

BadRabbit.exe
Size

431KB
MD5

fbbdc39af1139aebba4da004475e8839
SHA1

de5c8d858e6e41da715dca1c019df0bfb92d32c0
SHA256

630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da
SHA512

74eca8c01de215b33d5ceea1fda3f3bef96b513f58a750dba04b0de36f7ef4f7846a6431d52879ca0d8641bfd504d4721a9a96fa2e18c6888fd67fa77686af87
SSDEEP

12288:BHNTywFAvN86pLbqWRKHZKfErrZJyZ0yqsGO3XR63:vT56NbqWRwZaEr3yt2O3XR63

Score

10^/10

badrabbit mimikatz ransomware

Malware Config

Signatures

BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
ransomware badrabbit
Mimikatz
mimikatz is an open source tool to dump credentials on Windows.
mimikatz

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

Processes:

resource	yara_rule
C:\Windows\518B.tmp	mimikatz

Executes dropped EXE 1 IoCs

Processes:

518B.tmp

pid process

4304 518B.tmp
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1588 rundll32.exe
Drops desktop.ini file(s) 1 IoCs

Processes:

LogonUI.exe

description ioc process

File opened for modification C:\$RECYCLE.BIN\S-1-5-18\desktop.ini LogonUI.exe

pid	process
4304	518B.tmp

pid	process
1588	rundll32.exe

description	ioc	process
File opened for modification	C:\$RECYCLE.BIN\S-1-5-18\desktop.ini	LogonUI.exe

Drops file in Windows directory 5 IoCs

Processes:

rundll32.exeBadRabbit.exe

description	ioc	process
File created	C:\Windows\dispci.exe	rundll32.exe
File opened for modification	C:\Windows\518B.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

Processes:

schtasks.exeschtasks.exe

pid process

4604 schtasks.exe
3092 schtasks.exe

pid	process
4604	schtasks.exe
3092	schtasks.exe

Modifies data under HKEY_USERS 25 IoCs

Processes:

LogonUI.exe

description	ioc	process
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\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume\{14f6f45c-0000-0000-0000-d01200000000}	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\Shell Extensions\Cached	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{40DD6E20-7C17-11CE-A804-00AA003CA9F6} {000214FC-0000-0000-C000-000000000046} 0xFFFF = 01000000000000007a7636e32077da01	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume\{14f6f45c-0000-0000-0000-d01200000000}\NukeOnDelete = "0"	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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\TelemetrySalt = "7"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume\{14f6f45c-0000-0000-0000-d01200000000}\MaxCapacity = "14116"	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\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@%SystemRoot%\system32\shell32.dll,-50176 = "File Operation"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	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\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "162"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket	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\ColorizationColor = "3288365271"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

rundll32.exe518B.tmp

pid process

1588 rundll32.exe
1588 rundll32.exe
1588 rundll32.exe
1588 rundll32.exe
4304 518B.tmp
4304 518B.tmp
4304 518B.tmp
4304 518B.tmp
4304 518B.tmp
4304 518B.tmp

pid	process
1588	rundll32.exe
1588	rundll32.exe
1588	rundll32.exe
1588	rundll32.exe
4304	518B.tmp
4304	518B.tmp
4304	518B.tmp
4304	518B.tmp
4304	518B.tmp
4304	518B.tmp

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

rundll32.exe518B.tmpLogonUI.exe

description	pid	process
Token: SeShutdownPrivilege	1588	rundll32.exe
Token: SeDebugPrivilege	1588	rundll32.exe
Token: SeTcbPrivilege	1588	rundll32.exe
Token: SeDebugPrivilege	4304	518B.tmp
Token: SeShutdownPrivilege	4128	LogonUI.exe
Token: SeCreatePagefilePrivilege	4128	LogonUI.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LogonUI.exe

pid process

4128 LogonUI.exe

pid	process
4128	LogonUI.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

BadRabbit.exerundll32.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 4660 wrote to memory of 1588	4660	BadRabbit.exe	rundll32.exe
PID 4660 wrote to memory of 1588	4660	BadRabbit.exe	rundll32.exe
PID 4660 wrote to memory of 1588	4660	BadRabbit.exe	rundll32.exe
PID 1588 wrote to memory of 2660	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 2660	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 2660	1588	rundll32.exe	cmd.exe
PID 2660 wrote to memory of 3976	2660	cmd.exe	schtasks.exe
PID 2660 wrote to memory of 3976	2660	cmd.exe	schtasks.exe
PID 2660 wrote to memory of 3976	2660	cmd.exe	schtasks.exe
PID 1588 wrote to memory of 4416	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 4416	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 4416	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 4824	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 4824	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 4824	1588	rundll32.exe	cmd.exe
PID 4416 wrote to memory of 4604	4416	cmd.exe	schtasks.exe
PID 4416 wrote to memory of 4604	4416	cmd.exe	schtasks.exe
PID 4416 wrote to memory of 4604	4416	cmd.exe	schtasks.exe
PID 1588 wrote to memory of 4304	1588	rundll32.exe	518B.tmp
PID 1588 wrote to memory of 4304	1588	rundll32.exe	518B.tmp
PID 4824 wrote to memory of 3092	4824	cmd.exe	schtasks.exe
PID 4824 wrote to memory of 3092	4824	cmd.exe	schtasks.exe
PID 4824 wrote to memory of 3092	4824	cmd.exe	schtasks.exe
PID 1588 wrote to memory of 1188	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 1188	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 1188	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 1340	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 1340	1588	rundll32.exe	cmd.exe
PID 1588 wrote to memory of 1340	1588	rundll32.exe	cmd.exe
PID 1340 wrote to memory of 1840	1340	cmd.exe	schtasks.exe
PID 1340 wrote to memory of 1840	1340	cmd.exe	schtasks.exe
PID 1340 wrote to memory of 1840	1340	cmd.exe	schtasks.exe

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:4660

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
2⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1588

C:\Windows\SysWOW64\cmd.exe
/c schtasks /Delete /F /TN rhaegal
3⤵
- Suspicious use of WriteProcessMemory
PID:2660

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /F /TN rhaegal
4⤵
PID:3976

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 58934064 && exit"
3⤵
- Suspicious use of WriteProcessMemory
PID:4416

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 58934064 && exit"
4⤵
- Creates scheduled task(s)
PID:4604

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 21:53:00
3⤵
- Suspicious use of WriteProcessMemory
PID:4824

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 21:53:00
4⤵
- Creates scheduled task(s)
PID:3092

C:\Windows\518B.tmp
"C:\Windows\518B.tmp" \\.\pipe\{27787248-D197-413D-AC4E-84DE564A37D0}
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4304

C:\Windows\SysWOW64\cmd.exe
/c wevtutil cl Setup & wevtutil cl System & wevtutil cl Security & wevtutil cl Application & fsutil usn deletejournal /D C:
3⤵
PID:1188

C:\Windows\SysWOW64\cmd.exe
/c schtasks /Delete /F /TN drogon
3⤵
- Suspicious use of WriteProcessMemory
PID:1340

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /F /TN drogon
4⤵
PID:1840

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3944855 /state1:0x41c64e6d
1⤵
- Drops desktop.ini file(s)
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4128

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Windows\SystemData\S-1-5-21-1497073144-2389943819-3385106915-1000\ReadOnly\LockScreen_O\LockScreen___1280_0720_notdimmed.jpg
Filesize
176KB

MD5
9aeaabc0fcd0b4cdaccfe8274b9e6ab4

SHA1
11c683e5b5727158052912cadf55f7ed3b796e96

SHA256
bf2a8ce420440be0bcb4c9aadb76bf391ea43ff266e49f01e4a953a0d345238a

SHA512
aaed72ad365a4128af4559f0c56549856508f9e528574b2a345d2c817ad2ae0b8fc573d9d1f039c65facc9ab45a13c0d307896e56fbbb7af8aa48c7c87665b8d

Download Submit
C:\Windows\518B.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
C:\Windows\infpub.dat
Filesize
321KB

MD5
d559d894d23445470f5daf156e4d5569

SHA1
06f17f28594b46c4dbba3d9a3388a185d00e2604

SHA256
5d12fe570d3dd00c45b93cb241a81a6605bb8994dee888dfc009de0c954a6d42

SHA512
babe2171e585c4387fbd9b65ed9b56d16f56835e1f7d54faa79711a6dc4582ed2464e0ba2941fea994c04b030635ddd1aa067fd9415b024e0692bd511e03ae9f

Download Submit
memory/1588-3-0x0000000002A20000-0x0000000002A88000-memory.dmp

Filesize
416KB

Download
memory/1588-11-0x0000000002A20000-0x0000000002A88000-memory.dmp

Filesize
416KB

Download
memory/1588-14-0x0000000002A20000-0x0000000002A88000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads