badrabbit | ea8ccb8b5ec36195af831001b3cc46caedfc61a6194e2568901e7685c57ceefa

Analysis

max time kernel
118s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2023, 05:37

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Reason

Machine shutdown

Report Analysis Logs

General

Target

[email protected]
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 2 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023154-154.dat	mimikatz
behavioral2/files/0x0008000000023154-156.dat	mimikatz

Executes dropped EXE 1 IoCs

pid	Process
464	9407.tmp

Loads dropped DLL 1 IoCs

pid	Process
5040	rundll32.exe

Drops desktop.ini file(s) 1 IoCs

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

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\9407.tmp	rundll32.exe
File created	C:\Windows\infpub.dat	[email protected]
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

T1053

pid	Process
3192	schtasks.exe
3356	schtasks.exe

Modifies data under HKEY_USERS 25 IoCs

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\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume\{4cc777a5-0000-0000-0000-d01200000000}	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume\{4cc777a5-0000-0000-0000-d01200000000}\MaxCapacity = "15140"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	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 (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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume	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 (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@%SystemRoot%\system32\shell32.dll,-50176 = "File Operation"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached	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\BitBucket\Volume\{4cc777a5-0000-0000-0000-d01200000000}\NukeOnDelete = "0"	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\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\EnableWindowColorization = "218"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	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 = 0100000000000000393a266d6d6fd901	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\TelemetrySalt = "3"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
464	9407.tmp
464	9407.tmp
464	9407.tmp
464	9407.tmp
464	9407.tmp
464	9407.tmp

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5040	rundll32.exe
Token: SeDebugPrivilege	5040	rundll32.exe
Token: SeTcbPrivilege	5040	rundll32.exe
Token: SeDebugPrivilege	464	9407.tmp
Token: SeShutdownPrivilege	2252	LogonUI.exe
Token: SeCreatePagefilePrivilege	2252	LogonUI.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2252	LogonUI.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 3896 wrote to memory of 5040	3896	[email protected]	80
PID 3896 wrote to memory of 5040	3896	[email protected]	80
PID 3896 wrote to memory of 5040	3896	[email protected]	80
PID 5040 wrote to memory of 4248	5040	rundll32.exe	81
PID 5040 wrote to memory of 4248	5040	rundll32.exe	81
PID 5040 wrote to memory of 4248	5040	rundll32.exe	81
PID 4248 wrote to memory of 940	4248	cmd.exe	83
PID 4248 wrote to memory of 940	4248	cmd.exe	83
PID 4248 wrote to memory of 940	4248	cmd.exe	83
PID 5040 wrote to memory of 1240	5040	rundll32.exe	85
PID 5040 wrote to memory of 1240	5040	rundll32.exe	85
PID 5040 wrote to memory of 1240	5040	rundll32.exe	85
PID 5040 wrote to memory of 4848	5040	rundll32.exe	87
PID 5040 wrote to memory of 4848	5040	rundll32.exe	87
PID 5040 wrote to memory of 4848	5040	rundll32.exe	87
PID 5040 wrote to memory of 464	5040	rundll32.exe	89
PID 5040 wrote to memory of 464	5040	rundll32.exe	89
PID 1240 wrote to memory of 3192	1240	cmd.exe	91
PID 1240 wrote to memory of 3192	1240	cmd.exe	91
PID 1240 wrote to memory of 3192	1240	cmd.exe	91
PID 4848 wrote to memory of 3356	4848	cmd.exe	92
PID 4848 wrote to memory of 3356	4848	cmd.exe	92
PID 4848 wrote to memory of 3356	4848	cmd.exe	92
PID 5040 wrote to memory of 3676	5040	rundll32.exe	109
PID 5040 wrote to memory of 3676	5040	rundll32.exe	109
PID 5040 wrote to memory of 3676	5040	rundll32.exe	109
PID 5040 wrote to memory of 4984	5040	rundll32.exe	111
PID 5040 wrote to memory of 4984	5040	rundll32.exe	111
PID 5040 wrote to memory of 4984	5040	rundll32.exe	111
PID 4984 wrote to memory of 2716	4984	cmd.exe	113
PID 4984 wrote to memory of 2716	4984	cmd.exe	113
PID 4984 wrote to memory of 2716	4984	cmd.exe	113

C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3896
- 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:5040
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4248
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:940
- - 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 3655461062 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1240
  - - 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 3655461062 && exit"
      4⤵
      Creates scheduled task(s)
      PID:3192
- - 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 07:55:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4848
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 07:55:00
      4⤵
      Creates scheduled task(s)
      PID:3356
- - C:\Windows\9407.tmp
    "C:\Windows\9407.tmp" \\.\pipe\{F4DE7630-8D22-49CC-AB2C-838D81084E23}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:464
- - 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:3676
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN drogon
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4984
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN drogon
      4⤵
      PID:2716

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3957055 /state1:0x41c64e6d
1⤵
- Drops desktop.ini file(s)
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2252

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\SystemData\S-1-5-21-1529757233-3489015626-3409890339-1000\ReadOnly\LockScreen_O\LockScreen___1280_0720_notdimmed.jpg

Filesize
210KB

MD5
21e9b3202022e1e3be3cd355907b58f8

SHA1
b105aad0967583b23a2ee4dc30b50f725487cfe8

SHA256
d00711385cd26f52ac343c15d8183d7d607c50b46b9f2f38e30563028a881711

SHA512
30a98beeb66317f5bf80b0f6b77b41bb137a106f54ebec3b944c2a16d4a2cebda794632b380c1e7a211e97cf0f1ae1303dbb4b10e479d2153ed0fcbab2841960

Download Submit
C:\Windows\9407.tmp

Filesize
60KB

MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
C:\Windows\9407.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
401KB

MD5
1d724f95c61f1055f0d02c2154bbccd3

SHA1
79116fe99f2b421c52ef64097f0f39b815b20907

SHA256
579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648

SHA512
f2d7b018d1516df1c97cfff5507957c75c6d9bf8e2ce52ae0052706f4ec62f13eba6d7be17e6ad2b693fdd58e1fd091c37f17bd2b948cdcd9b95b4ad428c0113

Download Submit
memory/5040-136-0x0000000002180000-0x00000000021E8000-memory.dmp

Filesize
416KB

Download
memory/5040-144-0x0000000002180000-0x00000000021E8000-memory.dmp

Filesize
416KB

Download
memory/5040-147-0x0000000002180000-0x00000000021E8000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads