badrabbit | ea8ccb8b5ec36195af831001b3cc46caedfc61a6194e2568901e7685c57ceefa

Resubmissions

19/10/2023, 00:24

231019-ap68kacg5x 10

19/10/2023, 00:10

231019-af9bkaea78 10

Analysis

max time kernel
916s
max time network
922s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
19/10/2023, 00:10

Sharing

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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 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 1 IoCs

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

pid	Process
4504	fsutil.exe

Mimikatz
mimikatz is an open source tool to dump credentials on Windows.
mimikatz

Clears Windows event logs 1 TTPs 4 IoCs

evasion ransomware

Indicator Removal

T1070

pid	Process
3220	wevtutil.exe
408	wevtutil.exe
1956	wevtutil.exe
1516	wevtutil.exe

mimikatz is an open source tool to dump credentials on Windows 2 IoCs

resource	yara_rule
behavioral2/files/0x0003000000022888-22.dat	mimikatz
behavioral2/files/0x0003000000022888-23.dat	mimikatz

Blocklisted process makes network request 4 IoCs

flow	pid	Process
347	4548	rundll32.exe
387	4548	rundll32.exe
428	4548	rundll32.exe
470	4548	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
3240	7D1F.tmp

Loads dropped DLL 1 IoCs

pid	Process
4548	rundll32.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\infpub.dat	[email protected]
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\7D1F.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/Job

T1053

pid	Process
4432	schtasks.exe
2016	schtasks.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
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 (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\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	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\ColorizationGlassAttribute = "1"	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 = "137"	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\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
3240	7D1F.tmp
3240	7D1F.tmp
3240	7D1F.tmp
3240	7D1F.tmp
3240	7D1F.tmp
3240	7D1F.tmp

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4548	rundll32.exe
Token: SeDebugPrivilege	4548	rundll32.exe
Token: SeTcbPrivilege	4548	rundll32.exe
Token: SeDebugPrivilege	3240	7D1F.tmp
Token: SeSecurityPrivilege	3220	wevtutil.exe
Token: SeBackupPrivilege	3220	wevtutil.exe
Token: SeSecurityPrivilege	408	wevtutil.exe
Token: SeBackupPrivilege	408	wevtutil.exe
Token: SeSecurityPrivilege	1956	wevtutil.exe
Token: SeBackupPrivilege	1956	wevtutil.exe
Token: SeSecurityPrivilege	1516	wevtutil.exe
Token: SeBackupPrivilege	1516	wevtutil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4320	LogonUI.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 4548	1056	[email protected]	83
PID 1056 wrote to memory of 4548	1056	[email protected]	83
PID 1056 wrote to memory of 4548	1056	[email protected]	83
PID 4548 wrote to memory of 3180	4548	rundll32.exe	85
PID 4548 wrote to memory of 3180	4548	rundll32.exe	85
PID 4548 wrote to memory of 3180	4548	rundll32.exe	85
PID 3180 wrote to memory of 2784	3180	cmd.exe	87
PID 3180 wrote to memory of 2784	3180	cmd.exe	87
PID 3180 wrote to memory of 2784	3180	cmd.exe	87
PID 4548 wrote to memory of 3008	4548	rundll32.exe	88
PID 4548 wrote to memory of 3008	4548	rundll32.exe	88
PID 4548 wrote to memory of 3008	4548	rundll32.exe	88
PID 3008 wrote to memory of 4432	3008	cmd.exe	90
PID 3008 wrote to memory of 4432	3008	cmd.exe	90
PID 3008 wrote to memory of 4432	3008	cmd.exe	90
PID 4548 wrote to memory of 1640	4548	rundll32.exe	91
PID 4548 wrote to memory of 1640	4548	rundll32.exe	91
PID 4548 wrote to memory of 1640	4548	rundll32.exe	91
PID 4548 wrote to memory of 3240	4548	rundll32.exe	93
PID 4548 wrote to memory of 3240	4548	rundll32.exe	93
PID 1640 wrote to memory of 2016	1640	cmd.exe	95
PID 1640 wrote to memory of 2016	1640	cmd.exe	95
PID 1640 wrote to memory of 2016	1640	cmd.exe	95
PID 4548 wrote to memory of 3880	4548	rundll32.exe	107
PID 4548 wrote to memory of 3880	4548	rundll32.exe	107
PID 4548 wrote to memory of 3880	4548	rundll32.exe	107
PID 3880 wrote to memory of 3220	3880	cmd.exe	109
PID 3880 wrote to memory of 3220	3880	cmd.exe	109
PID 3880 wrote to memory of 3220	3880	cmd.exe	109
PID 3880 wrote to memory of 408	3880	cmd.exe	110
PID 3880 wrote to memory of 408	3880	cmd.exe	110
PID 3880 wrote to memory of 408	3880	cmd.exe	110
PID 3880 wrote to memory of 1956	3880	cmd.exe	111
PID 3880 wrote to memory of 1956	3880	cmd.exe	111
PID 3880 wrote to memory of 1956	3880	cmd.exe	111
PID 3880 wrote to memory of 1516	3880	cmd.exe	112
PID 3880 wrote to memory of 1516	3880	cmd.exe	112
PID 3880 wrote to memory of 1516	3880	cmd.exe	112
PID 3880 wrote to memory of 4504	3880	cmd.exe	113
PID 3880 wrote to memory of 4504	3880	cmd.exe	113
PID 3880 wrote to memory of 4504	3880	cmd.exe	113
PID 4548 wrote to memory of 4844	4548	rundll32.exe	114
PID 4548 wrote to memory of 4844	4548	rundll32.exe	114
PID 4548 wrote to memory of 4844	4548	rundll32.exe	114
PID 4844 wrote to memory of 2560	4844	cmd.exe	117
PID 4844 wrote to memory of 2560	4844	cmd.exe	117
PID 4844 wrote to memory of 2560	4844	cmd.exe	117

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:1056
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4548
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3180
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:2784
- - 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 2121168094 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3008
  - - 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 2121168094 && exit"
      4⤵
      Creates scheduled task(s)
      PID:4432
- - 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 00:28:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1640
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 00:28:00
      4⤵
      Creates scheduled task(s)
      PID:2016
- - C:\Windows\7D1F.tmp
    "C:\Windows\7D1F.tmp" \\.\pipe\{E3502B42-D1FE-4C49-BADF-5955E0F76FAD}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3240
- - 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:3880
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Setup
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:3220
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl System
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:408
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Security
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:1956
  - - C:\Windows\SysWOW64\wevtutil.exe
      wevtutil cl Application
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:1516
  - - C:\Windows\SysWOW64\fsutil.exe
      fsutil usn deletejournal /D C:
      4⤵
      Deletes NTFS Change Journal
      PID:4504
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN drogon
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4844
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN drogon
      4⤵
      PID:2560

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3973855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Indicator Removal

T1070

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Data Destruction

T1485

Inhibit System Recovery

T1490

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Downloads

C:\Windows\7D1F.tmp

Filesize
60KB

MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
C:\Windows\7D1F.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/4548-3-0x0000000002C70000-0x0000000002CD8000-memory.dmp

Filesize
416KB

Download
memory/4548-11-0x0000000002C70000-0x0000000002CD8000-memory.dmp

Filesize
416KB

Download
memory/4548-14-0x0000000002C70000-0x0000000002CD8000-memory.dmp

Filesize
416KB

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads