badrabbit | 3b04f8d10e7847cffa2e610e299733af239ea28e8709659a992965dce1e8b9c4

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01-02-2024 09:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe
Size

431KB
MD5

5d5ae8c9b7a2af62fcdf385a203bf7b5
SHA1

b1863b977696682532ac3c3f4345ee52888558fa
SHA256

3b04f8d10e7847cffa2e610e299733af239ea28e8709659a992965dce1e8b9c4
SHA512

1e50c9101739ddd95ed28bc3946da1e5a720f20a83a6267eff2cc12d2032a3f1728b9ec93a89ef44b0bd12090884d3fbf702b2324f89b8988c25dcea3b5d93a7
SSDEEP

12288:BHNTywFAvN86pLbqWRKHZKfErrZJyZ0yqsGO3XR6V:vT56NbqWRwZaEr3yt2O3XR6V

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

Detects executables containing anti-forensic artifacts of deleting USN change journal. Observed in ransomware 4 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012281-1.dat	INDICATOR_SUSPICIOUS_USNDeleteJournal
behavioral1/memory/2712-10-0x0000000000950000-0x00000000009B8000-memory.dmp	INDICATOR_SUSPICIOUS_USNDeleteJournal
behavioral1/memory/2712-2-0x0000000000950000-0x00000000009B8000-memory.dmp	INDICATOR_SUSPICIOUS_USNDeleteJournal
behavioral1/memory/2712-13-0x0000000000950000-0x00000000009B8000-memory.dmp	INDICATOR_SUSPICIOUS_USNDeleteJournal

mimikatz is an open source tool to dump credentials on Windows 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000016d6c-23.dat	mimikatz

Executes dropped EXE 1 IoCs

pid	Process
2688	6DEF.tmp

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\6DEF.tmp	rundll32.exe
File created	C:\Windows\infpub.dat	2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe
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

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
2532	schtasks.exe
2660	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2712	rundll32.exe
2712	rundll32.exe
2688	6DEF.tmp
2688	6DEF.tmp
2688	6DEF.tmp
2688	6DEF.tmp
2688	6DEF.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2712	rundll32.exe
Token: SeDebugPrivilege	2712	rundll32.exe
Token: SeTcbPrivilege	2712	rundll32.exe
Token: SeDebugPrivilege	2688	6DEF.tmp

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 2712	2060	2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe	29
PID 2060 wrote to memory of 2712	2060	2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe	29
PID 2060 wrote to memory of 2712	2060	2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe	29
PID 2060 wrote to memory of 2712	2060	2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe	29
PID 2060 wrote to memory of 2712	2060	2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe	29
PID 2060 wrote to memory of 2712	2060	2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe	29
PID 2060 wrote to memory of 2712	2060	2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe	29
PID 2712 wrote to memory of 2652	2712	rundll32.exe	31
PID 2712 wrote to memory of 2652	2712	rundll32.exe	31
PID 2712 wrote to memory of 2652	2712	rundll32.exe	31
PID 2712 wrote to memory of 2652	2712	rundll32.exe	31
PID 2652 wrote to memory of 2736	2652	cmd.exe	32
PID 2652 wrote to memory of 2736	2652	cmd.exe	32
PID 2652 wrote to memory of 2736	2652	cmd.exe	32
PID 2652 wrote to memory of 2736	2652	cmd.exe	32
PID 2712 wrote to memory of 2656	2712	rundll32.exe	33
PID 2712 wrote to memory of 2656	2712	rundll32.exe	33
PID 2712 wrote to memory of 2656	2712	rundll32.exe	33
PID 2712 wrote to memory of 2656	2712	rundll32.exe	33
PID 2656 wrote to memory of 2532	2656	cmd.exe	35
PID 2656 wrote to memory of 2532	2656	cmd.exe	35
PID 2656 wrote to memory of 2532	2656	cmd.exe	35
PID 2656 wrote to memory of 2532	2656	cmd.exe	35
PID 2712 wrote to memory of 2708	2712	rundll32.exe	36
PID 2712 wrote to memory of 2708	2712	rundll32.exe	36
PID 2712 wrote to memory of 2708	2712	rundll32.exe	36
PID 2712 wrote to memory of 2708	2712	rundll32.exe	36
PID 2708 wrote to memory of 2660	2708	cmd.exe	38
PID 2708 wrote to memory of 2660	2708	cmd.exe	38
PID 2708 wrote to memory of 2660	2708	cmd.exe	38
PID 2708 wrote to memory of 2660	2708	cmd.exe	38
PID 2712 wrote to memory of 2688	2712	rundll32.exe	39
PID 2712 wrote to memory of 2688	2712	rundll32.exe	39
PID 2712 wrote to memory of 2688	2712	rundll32.exe	39
PID 2712 wrote to memory of 2688	2712	rundll32.exe	39

C:\Users\Admin\AppData\Local\Temp\2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_5d5ae8c9b7a2af62fcdf385a203bf7b5_bad-rabbit.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2060
- 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:2712
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2652
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:2736
- - 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 339712932 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2656
  - - 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 339712932 && exit"
      4⤵
      Creates scheduled task(s)
      PID:2532
- - 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 09:23:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2708
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 09:23:00
      4⤵
      Creates scheduled task(s)
      PID:2660
- - C:\Windows\6DEF.tmp
    "C:\Windows\6DEF.tmp" \\.\pipe\{8E210380-CD6B-4813-8313-1A07BEB48210}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2688

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\6DEF.tmp

Filesize
60KB

MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
C:\Windows\infpub.dat

Filesize
161KB

MD5
fed44fc8aaa8966207cd255ba0256069

SHA1
42eeff70f18bb1ef043215d7b852b138c7518f78

SHA256
e23a6a1edfa712506eea36ca8d4a48900ef2c9dd0e9f7a2d8a136539e5d2c6a1

SHA512
61be29125b6677afe8616c240b8c3678d0f4fc28a1ae04b5318eea2e74eabb5625461adcad5bbfb2edcaf8e7c2cb9bcf58c20eac49d6c0e306e1bf9fc0206694

Download Submit
memory/2712-10-0x0000000000950000-0x00000000009B8000-memory.dmp

Filesize
416KB

Download
memory/2712-2-0x0000000000950000-0x00000000009B8000-memory.dmp

Filesize
416KB

Download
memory/2712-13-0x0000000000950000-0x00000000009B8000-memory.dmp

Filesize
416KB

Download