badrabbit | ea8ccb8b5ec36195af831001b3cc46caedfc61a6194e2568901e7685c57ceefa

Analysis

max time kernel
104s
max time network
107s
platform
windows10-1703_x64
resource
win10-20231215-en
resource tags

arch:x64arch:x86image:win10-20231215-enlocale:en-usos:windows10-1703-x64system
submitted
15-01-2024 19:22

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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 1 IoCs

resource	yara_rule
behavioral1/files/0x000700000001abbc-22.dat	mimikatz

Executes dropped EXE 1 IoCs

pid	Process
5000	7ADD.tmp

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\7ADD.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/Job

T1053

pid	Process
1912	schtasks.exe
1868	schtasks.exe

Modifies data under HKEY_USERS 43 IoCs

description	ioc	Process
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\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}	LogonUI.exe
Key deleted	\REGISTRY\USER\.DEFAULT\SOFTWARE\MICROSOFT\CTF\SORTORDER\ASSEMBLYITEM\0X00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000\KeyboardLayout = "67699721"	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\ColorizationAfterglow = "3288365271"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\HiddenDummyLayouts	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\en-US\0409:00000409 = "1"	LogonUI.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\Language\00000000 = "00000409"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\ShowCasing = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\TIP	LogonUI.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Keyboard Layout\Preload\1 = "00000409"	LogonUI.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000\Profile = "{00000000-0000-0000-0000-000000000000}"	LogonUI.exe
Key deleted	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000	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
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
Key created	\REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\en-US	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\ColorizationColorBalance = "89"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\Languages = 65006e002d00550053000000	LogonUI.exe
Key deleted	\REGISTRY\USER\.DEFAULT\SOFTWARE\MICROSOFT\CTF\SORTORDER\LANGUAGE	LogonUI.exe
Key deleted	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\Language	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	LogonUI.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\en-US\CachedLanguageName = "@Winlangdb.dll,-1121"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\ShowShiftLock = "1"	LogonUI.exe
Key deleted	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Keyboard Layout\Preload	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Keyboard Layout\Substitutes	LogonUI.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000\CLSID = "{00000000-0000-0000-0000-000000000000}"	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\ColorizationAfterglowBalance = "10"	LogonUI.exe
Key deleted	\REGISTRY\USER\.DEFAULT\SOFTWARE\MICROSOFT\CTF\SORTORDER\ASSEMBLYITEM\0X00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3376	rundll32.exe
3376	rundll32.exe
3376	rundll32.exe
3376	rundll32.exe
5000	7ADD.tmp
5000	7ADD.tmp
5000	7ADD.tmp
5000	7ADD.tmp
5000	7ADD.tmp
5000	7ADD.tmp

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3376	rundll32.exe
Token: SeDebugPrivilege	3376	rundll32.exe
Token: SeTcbPrivilege	3376	rundll32.exe
Token: SeDebugPrivilege	5000	7ADD.tmp
Token: SeShutdownPrivilege	1260	LogonUI.exe
Token: SeCreatePagefilePrivilege	1260	LogonUI.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1260	LogonUI.exe
1260	LogonUI.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5108 wrote to memory of 3376	5108	[email protected]	20
PID 5108 wrote to memory of 3376	5108	[email protected]	20
PID 5108 wrote to memory of 3376	5108	[email protected]	20
PID 3376 wrote to memory of 3568	3376	rundll32.exe	27
PID 3376 wrote to memory of 3568	3376	rundll32.exe	27
PID 3376 wrote to memory of 3568	3376	rundll32.exe	27
PID 3568 wrote to memory of 4544	3568	cmd.exe	25
PID 3568 wrote to memory of 4544	3568	cmd.exe	25
PID 3568 wrote to memory of 4544	3568	cmd.exe	25
PID 3376 wrote to memory of 2968	3376	rundll32.exe	79
PID 3376 wrote to memory of 2968	3376	rundll32.exe	79
PID 3376 wrote to memory of 2968	3376	rundll32.exe	79
PID 3376 wrote to memory of 3520	3376	rundll32.exe	81
PID 3376 wrote to memory of 3520	3376	rundll32.exe	81
PID 3376 wrote to memory of 3520	3376	rundll32.exe	81
PID 3376 wrote to memory of 5000	3376	rundll32.exe	85
PID 3376 wrote to memory of 5000	3376	rundll32.exe	85
PID 2968 wrote to memory of 1868	2968	cmd.exe	83
PID 2968 wrote to memory of 1868	2968	cmd.exe	83
PID 2968 wrote to memory of 1868	2968	cmd.exe	83
PID 3520 wrote to memory of 1912	3520	cmd.exe	82
PID 3520 wrote to memory of 1912	3520	cmd.exe	82
PID 3520 wrote to memory of 1912	3520	cmd.exe	82

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

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:5108
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3376
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3568
- - 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 1361022916 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2968
  - - 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 1361022916 && exit"
      4⤵
      Creates scheduled task(s)
      PID:1868
- - 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 19:41:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3520
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 19:41:00
      4⤵
      Creates scheduled task(s)
      PID:1912
- - C:\Windows\7ADD.tmp
    "C:\Windows\7ADD.tmp" \\.\pipe\{EBC513A2-ABF5-4ED2-8FFC-D6E96A82F1A4}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5000

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /F /TN rhaegal
1⤵
PID:4544

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4896

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3af3055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1260

C:\Windows\System32\LockAppHost.exe
C:\Windows\System32\LockAppHost.exe -Embedding
1⤵
PID:3876

\??\c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s RmSvc
1⤵
PID:2456

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

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\7ADD.tmp

Filesize
60KB

MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
C:\Windows\infpub.dat

Filesize
401KB

MD5
c29d6253d89ee9c0c872dd377a7a8454

SHA1
46be3800684f6b208e0a8c7b120ef8614c22c4b0

SHA256
03f4198a279ea4c36a62cd271d3b2d796547013548666006fbef45e20bb920cb

SHA512
50141de5e0a827688251161353932b677c85e0d6e6831293c9a0044543e541fe8bd4e62fa403abc06df9d220fd843aa58ff9cc37abf46be3e06ae14905c24a5e

Download Submit
memory/3376-2-0x0000000003000000-0x0000000003068000-memory.dmp

Filesize
416KB

Download
memory/3376-10-0x0000000003000000-0x0000000003068000-memory.dmp

Filesize
416KB

Download
memory/3376-13-0x0000000003000000-0x0000000003068000-memory.dmp

Filesize
416KB

Download