badrabbit | f1bbcc5c678d174d858ae089f4494e3ea8bcfc418098d61804a15e437f08aff7

Target

[email protected]
Size

396KB
MD5

13f4b868603cf0dd6c32702d1bd858c9
SHA1

a595ab75e134f5616679be5f11deefdfaae1de15
SHA256

cae57a60c4d269cd1ca43ef143aedb8bfc4c09a7e4a689544883d05ce89406e7
SHA512

e0d7a81c9cdd15a4ef7c8a9492fffb2c520b28cebc54a139e1bffa5c523cf17dfb9ffe57188cf8843d74479df402306f4f0ce9fc09d87c7cca92aea287e5ff24

Score

10^/10

badrabbit discovery persistence ransomware

Malware Config

Signatures

BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
ransomware badrabbit

Executes dropped EXE 4 IoCs

pid	Process
2988	Free YouTube Downloader.exe
736	B094.tmp
2200	Box.exe
3260	Box.exe

Modifies extensions of user files 1 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\ClosePing.tiff	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	[email protected]
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Free Youtube Downloader = "C:\\Windows\\Free Youtube Downloader\\Free Youtube Downloader\\Free YouTube Downloader.exe"	[email protected]

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082

Drops file in Windows directory 8 IoCs

description	ioc	Process
File created	C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Uninstall.ini	[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\B094.tmp	rundll32.exe
File opened for modification	C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Free YouTube Downloader.exe	[email protected]
File opened for modification	C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe	[email protected]
File opened for modification	C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Uninstall.exe	[email protected]

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
3596	schtasks.exe
1580	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
64	rundll32.exe
64	rundll32.exe
64	rundll32.exe
64	rundll32.exe
736	B094.tmp
736	B094.tmp
736	B094.tmp
736	B094.tmp
736	B094.tmp
736	B094.tmp
64	rundll32.exe
64	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	64	rundll32.exe
Token: SeDebugPrivilege	64	rundll32.exe
Token: SeTcbPrivilege	64	rundll32.exe
Token: SeDebugPrivilege	736	B094.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2988	Free YouTube Downloader.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2988	Free YouTube Downloader.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 3636 wrote to memory of 2988	3636	[email protected]	75
PID 3636 wrote to memory of 2988	3636	[email protected]	75
PID 3392 wrote to memory of 64	3392	rundll32.exe	81
PID 3392 wrote to memory of 64	3392	rundll32.exe	81
PID 3392 wrote to memory of 64	3392	rundll32.exe	81
PID 64 wrote to memory of 2072	64	rundll32.exe	82
PID 64 wrote to memory of 2072	64	rundll32.exe	82
PID 64 wrote to memory of 2072	64	rundll32.exe	82
PID 2072 wrote to memory of 3812	2072	cmd.exe	84
PID 2072 wrote to memory of 3812	2072	cmd.exe	84
PID 2072 wrote to memory of 3812	2072	cmd.exe	84
PID 64 wrote to memory of 2568	64	rundll32.exe	85
PID 64 wrote to memory of 2568	64	rundll32.exe	85
PID 64 wrote to memory of 2568	64	rundll32.exe	85
PID 64 wrote to memory of 3972	64	rundll32.exe	87
PID 64 wrote to memory of 3972	64	rundll32.exe	87
PID 64 wrote to memory of 3972	64	rundll32.exe	87
PID 64 wrote to memory of 736	64	rundll32.exe	90
PID 64 wrote to memory of 736	64	rundll32.exe	90
PID 2568 wrote to memory of 3596	2568	cmd.exe	88
PID 2568 wrote to memory of 3596	2568	cmd.exe	88
PID 2568 wrote to memory of 3596	2568	cmd.exe	88
PID 3972 wrote to memory of 1580	3972	cmd.exe	92
PID 3972 wrote to memory of 1580	3972	cmd.exe	92
PID 3972 wrote to memory of 1580	3972	cmd.exe	92
PID 2988 wrote to memory of 2200	2988	Free YouTube Downloader.exe	94
PID 2988 wrote to memory of 2200	2988	Free YouTube Downloader.exe	94
PID 2988 wrote to memory of 2200	2988	Free YouTube Downloader.exe	94
PID 2988 wrote to memory of 3260	2988	Free YouTube Downloader.exe	95
PID 2988 wrote to memory of 3260	2988	Free YouTube Downloader.exe	95
PID 2988 wrote to memory of 3260	2988	Free YouTube Downloader.exe	95

C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3636
- C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Free YouTube Downloader.exe
  "C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Free YouTube Downloader.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe
    "C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe"
    3⤵
    - Executes dropped EXE
    PID:2200
- - C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe
    "C:\Windows\Free Youtube Downloader\Free Youtube Downloader\Box.exe"
    3⤵
    - Executes dropped EXE
    PID:3260

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\infpub.dat",#2 15
1⤵
- Suspicious use of WriteProcessMemory
PID:3392
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
  2⤵
  - Modifies extensions of user files
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:64
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2072
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:3812
- - 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 4042766786 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2568
  - - 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 4042766786 && exit"
      4⤵
      Creates scheduled task(s)
      PID:3596
- - 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 13:01:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3972
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 13:01:00
      4⤵
      Creates scheduled task(s)
      PID:1580
- - C:\Windows\B094.tmp
    "C:\Windows\B094.tmp" \\.\pipe\{52CE986F-4B10-49EF-9E03-4BC3E341382A}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/64-11-0x00000000036C0000-0x0000000003728000-memory.dmp

Filesize
416KB

Download
memory/2200-29-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

Filesize
4KB

Download
memory/2200-31-0x0000000005203000-0x0000000005205000-memory.dmp

Filesize
8KB

Download
memory/2200-24-0x0000000073280000-0x000000007396E000-memory.dmp

Filesize
6.9MB

Download
memory/2200-28-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

Filesize
4KB

Download
memory/2200-30-0x0000000005200000-0x0000000005201000-memory.dmp

Filesize
4KB

Download
memory/2200-27-0x0000000005510000-0x0000000005511000-memory.dmp

Filesize
4KB

Download
memory/2200-25-0x0000000000610000-0x0000000000611000-memory.dmp

Filesize
4KB

Download
memory/2988-6-0x000001EF4D100000-0x000001EF4D101000-memory.dmp

Filesize
4KB

Download
memory/2988-8-0x000001EF4EE20000-0x000001EF4EE22000-memory.dmp

Filesize
8KB

Download
memory/2988-9-0x000001EF4EE22000-0x000001EF4EE24000-memory.dmp

Filesize
8KB

Download
memory/2988-5-0x00007FFB8A380000-0x00007FFB8AD6C000-memory.dmp

Filesize
9.9MB

Download
memory/3260-34-0x0000000073280000-0x000000007396E000-memory.dmp

Filesize
6.9MB

Download
memory/3260-40-0x0000000005330000-0x0000000005331000-memory.dmp

Filesize
4KB

Download
memory/3260-41-0x0000000005333000-0x0000000005335000-memory.dmp

Filesize
8KB

Download