badrabbit | ea8ccb8b5ec36195af831001b3cc46caedfc61a6194e2568901e7685c57ceefa

Analysis

max time kernel
65s
max time network
67s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
31-08-2024 20:41

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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 discovery 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

resource	yara_rule
behavioral1/files/0x000300000002aad2-20.dat	mimikatz

Executes dropped EXE 1 IoCs

pid	Process
3716	BF39.tmp

Loads dropped DLL 3 IoCs

pid	Process
1800	rundll32.exe
3040	rundll32.exe
1576	rundll32.exe

Drops file in Windows directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\infpub.dat	rundll32.exe
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\infpub.dat	rundll32.exe
File opened for modification	C:\Windows\BF39.tmp	rundll32.exe
File created	C:\Windows\infpub.dat	[email protected]
File created	C:\Windows\infpub.dat	[email protected]

System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	[email protected]
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	[email protected]
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	[email protected]
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Modifies data under HKEY_USERS 15 IoCs

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\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "225"	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\Explorer\Accent	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4290799360"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268"	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 = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3156	schtasks.exe
4836	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1136	vlc.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1800	rundll32.exe
1800	rundll32.exe
1800	rundll32.exe
1800	rundll32.exe
3716	BF39.tmp
3716	BF39.tmp
3716	BF39.tmp
3716	BF39.tmp
3716	BF39.tmp
3716	BF39.tmp
3040	rundll32.exe
3040	rundll32.exe
1576	rundll32.exe
1576	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1136	vlc.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1800	rundll32.exe
Token: SeDebugPrivilege	1800	rundll32.exe
Token: SeTcbPrivilege	1800	rundll32.exe
Token: SeDebugPrivilege	3716	BF39.tmp
Token: SeShutdownPrivilege	3040	rundll32.exe
Token: SeDebugPrivilege	3040	rundll32.exe
Token: SeTcbPrivilege	3040	rundll32.exe
Token: SeShutdownPrivilege	1576	rundll32.exe
Token: SeDebugPrivilege	1576	rundll32.exe
Token: SeTcbPrivilege	1576	rundll32.exe
Token: SeShutdownPrivilege	1860	LogonUI.exe
Token: SeCreatePagefilePrivilege	1860	LogonUI.exe

Suspicious use of FindShellTrayWindow 9 IoCs

pid	Process
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe

Suspicious use of SendNotifyMessage 8 IoCs

pid	Process
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe
1136	vlc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1136	vlc.exe
1860	LogonUI.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 3160 wrote to memory of 1800	3160	[email protected]	83
PID 3160 wrote to memory of 1800	3160	[email protected]	83
PID 3160 wrote to memory of 1800	3160	[email protected]	83
PID 1800 wrote to memory of 244	1800	rundll32.exe	84
PID 1800 wrote to memory of 244	1800	rundll32.exe	84
PID 1800 wrote to memory of 244	1800	rundll32.exe	84
PID 244 wrote to memory of 4580	244	cmd.exe	86
PID 244 wrote to memory of 4580	244	cmd.exe	86
PID 244 wrote to memory of 4580	244	cmd.exe	86
PID 1800 wrote to memory of 1340	1800	rundll32.exe	87
PID 1800 wrote to memory of 1340	1800	rundll32.exe	87
PID 1800 wrote to memory of 1340	1800	rundll32.exe	87
PID 1340 wrote to memory of 3156	1340	cmd.exe	89
PID 1340 wrote to memory of 3156	1340	cmd.exe	89
PID 1340 wrote to memory of 3156	1340	cmd.exe	89
PID 1800 wrote to memory of 4464	1800	rundll32.exe	90
PID 1800 wrote to memory of 4464	1800	rundll32.exe	90
PID 1800 wrote to memory of 4464	1800	rundll32.exe	90
PID 1800 wrote to memory of 3716	1800	rundll32.exe	91
PID 1800 wrote to memory of 3716	1800	rundll32.exe	91
PID 4464 wrote to memory of 4836	4464	cmd.exe	94
PID 4464 wrote to memory of 4836	4464	cmd.exe	94
PID 4464 wrote to memory of 4836	4464	cmd.exe	94
PID 1120 wrote to memory of 3040	1120	[email protected]	103
PID 1120 wrote to memory of 3040	1120	[email protected]	103
PID 1120 wrote to memory of 3040	1120	[email protected]	103
PID 1888 wrote to memory of 1576	1888	[email protected]	106
PID 1888 wrote to memory of 1576	1888	[email protected]	106
PID 1888 wrote to memory of 1576	1888	[email protected]	106
PID 1800 wrote to memory of 4824	1800	rundll32.exe	110
PID 1800 wrote to memory of 4824	1800	rundll32.exe	110
PID 1800 wrote to memory of 4824	1800	rundll32.exe	110
PID 1800 wrote to memory of 3104	1800	rundll32.exe	112
PID 1800 wrote to memory of 3104	1800	rundll32.exe	112
PID 1800 wrote to memory of 3104	1800	rundll32.exe	112
PID 3104 wrote to memory of 3380	3104	cmd.exe	114
PID 3104 wrote to memory of 3380	3104	cmd.exe	114
PID 3104 wrote to memory of 3380	3104	cmd.exe	114

C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3160
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1800
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:244
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      System Location Discovery: System Language Discovery
      PID:4580
- - 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 3842220131 && exit"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1340
  - - 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 3842220131 && exit"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:3156
- - 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 20:59:00
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4464
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 20:59:00
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4836
- - C:\Windows\BF39.tmp
    "C:\Windows\BF39.tmp" \\.\pipe\{BB6EF4E4-D9DD-4546-A3A2-9A786D5FFB14}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3716
- - 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:4824
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN drogon
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3104
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN drogon
      4⤵
      System Location Discovery: System Language Discovery
      PID:3380

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:5000

C:\Users\Admin\Desktop\[email protected]
"C:\Users\Admin\Desktop\[email protected]"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1120
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3040

C:\Users\Admin\Desktop\[email protected]
"C:\Users\Admin\Desktop\[email protected]"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1888
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1576

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\RestartRename.3g2"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1136

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a2c855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\SystemData\S-1-5-21-3007475212-2160282277-2943627620-1000\ReadOnly\LockScreen_Z\LockScreen___1280_0720_notdimmed.jpg

Filesize
62KB

MD5
6cb7e9f13c79d1dd975a8aa005ab0256

SHA1
eac7fc28cc13ac1e9c85f828215cd61f0c698ae3

SHA256
af2537d470fddbeda270c965b8dbdf7e9ccf480ed2f525012e2f1035112a6d67

SHA512
3a40359d8e4cc8792be78a022dc04daed5c1cc55d78fe9cf3e061ea5587baa15023ce2152238f5be5cc5124cd468f220cf9dab54344d93edd3dfcd400b24469d

Download Submit
C:\Windows\BF39.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
memory/1136-74-0x00007FFCEF120000-0x00007FFCEF154000-memory.dmp

Filesize
208KB

Download
memory/1136-76-0x00007FFCDC420000-0x00007FFCDD4D0000-memory.dmp

Filesize
16.7MB

Download
memory/1136-75-0x00007FFCDDEC0000-0x00007FFCDE176000-memory.dmp

Filesize
2.7MB

Download
memory/1136-73-0x00007FF7E81F0000-0x00007FF7E82E8000-memory.dmp

Filesize
992KB

Download
memory/1576-53-0x0000000002840000-0x00000000028A8000-memory.dmp

Filesize
416KB

Download
memory/1576-60-0x0000000002840000-0x00000000028A8000-memory.dmp

Filesize
416KB

Download
memory/1800-14-0x0000000002B00000-0x0000000002B68000-memory.dmp

Filesize
416KB

Download
memory/1800-11-0x0000000002B00000-0x0000000002B68000-memory.dmp

Filesize
416KB

Download
memory/1800-3-0x0000000002B00000-0x0000000002B68000-memory.dmp

Filesize
416KB

Download
memory/3040-48-0x0000000000A40000-0x0000000000AA8000-memory.dmp

Filesize
416KB

Download
memory/3040-40-0x0000000000A40000-0x0000000000AA8000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads