badrabbit | a1c59d7113ceea1763c5cb50bd9ae1e8722b7ced475fd438dd5f30d3a78eb66a

General

Target

2025-04-04_998b11a97693c14be76951f9630c0021_bad-rabbit_eternalpetya.exe
Size

431KB
MD5

998b11a97693c14be76951f9630c0021
SHA1

a14fe179e690149f76ebc8072d2e530ae77e64b6
SHA256

a1c59d7113ceea1763c5cb50bd9ae1e8722b7ced475fd438dd5f30d3a78eb66a
SHA512

7970a23ea4ec81052798f60554e7372711c4429c7294154a060eabba08721b97c86296aed1e7fd04c53328a15137d415376693554dd263965f40742b6eed5f29
SSDEEP

12288:BHNTywFAvN86pLbqWRKHZKfErrZJyZ0yqsGO3XR6M:vT56NbqWRwZaEr3yt2O3XR6M

Score

10^/10

badrabbit mimikatz discovery ransomware

Malware Config

Signatures

BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
ransomware badrabbit
Badrabbit family
badrabbit
Mimikatz
mimikatz is an open source tool to dump credentials on Windows.
mimikatz
Mimikatz family
mimikatz

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

resource	yara_rule
behavioral1/files/0x000b000000024141-20.dat	mimikatz

Executes dropped EXE 1 IoCs

pid	Process
4344	784D.tmp

Loads dropped DLL 1 IoCs

pid	Process
336	rundll32.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\infpub.dat	2025-04-04_998b11a97693c14be76951f9630c0021_bad-rabbit_eternalpetya.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
File opened for modification	C:\Windows\784D.tmp	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	rundll32.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-04-04_998b11a97693c14be76951f9630c0021_bad-rabbit_eternalpetya.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	cmd.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
4768	schtasks.exe
4692	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
336	rundll32.exe
336	rundll32.exe
336	rundll32.exe
336	rundll32.exe
4344	784D.tmp
4344	784D.tmp
4344	784D.tmp
4344	784D.tmp
4344	784D.tmp
4344	784D.tmp
4344	784D.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	336	rundll32.exe
Token: SeDebugPrivilege	336	rundll32.exe
Token: SeTcbPrivilege	336	rundll32.exe
Token: SeDebugPrivilege	4344	784D.tmp

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5244 wrote to memory of 336	5244	2025-04-04_998b11a97693c14be76951f9630c0021_bad-rabbit_eternalpetya.exe	87
PID 5244 wrote to memory of 336	5244	2025-04-04_998b11a97693c14be76951f9630c0021_bad-rabbit_eternalpetya.exe	87
PID 5244 wrote to memory of 336	5244	2025-04-04_998b11a97693c14be76951f9630c0021_bad-rabbit_eternalpetya.exe	87
PID 336 wrote to memory of 2656	336	rundll32.exe	88
PID 336 wrote to memory of 2656	336	rundll32.exe	88
PID 336 wrote to memory of 2656	336	rundll32.exe	88
PID 2656 wrote to memory of 5236	2656	cmd.exe	90
PID 2656 wrote to memory of 5236	2656	cmd.exe	90
PID 2656 wrote to memory of 5236	2656	cmd.exe	90
PID 336 wrote to memory of 4616	336	rundll32.exe	95
PID 336 wrote to memory of 4616	336	rundll32.exe	95
PID 336 wrote to memory of 4616	336	rundll32.exe	95
PID 336 wrote to memory of 4856	336	rundll32.exe	97
PID 336 wrote to memory of 4856	336	rundll32.exe	97
PID 336 wrote to memory of 4856	336	rundll32.exe	97
PID 4616 wrote to memory of 4768	4616	cmd.exe	98
PID 4616 wrote to memory of 4768	4616	cmd.exe	98
PID 4616 wrote to memory of 4768	4616	cmd.exe	98
PID 336 wrote to memory of 4344	336	rundll32.exe	99
PID 336 wrote to memory of 4344	336	rundll32.exe	99
PID 4856 wrote to memory of 4692	4856	cmd.exe	102
PID 4856 wrote to memory of 4692	4856	cmd.exe	102
PID 4856 wrote to memory of 4692	4856	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-04-04_998b11a97693c14be76951f9630c0021_bad-rabbit_eternalpetya.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-04_998b11a97693c14be76951f9630c0021_bad-rabbit_eternalpetya.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5244
- 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:336
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2656
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      System Location Discovery: System Language Discovery
      PID:5236
- - 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 4216331338 && exit"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4616
  - - 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 4216331338 && exit"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4768
- - 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 06:12:00
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4856
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 06:12:00
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4692
- - C:\Windows\784D.tmp
    "C:\Windows\784D.tmp" \\.\pipe\{E45559DB-694B-44BD-97FC-4C0295EBB4A6}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\784D.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/336-3-0x0000000002900000-0x0000000002968000-memory.dmp

Filesize
416KB

Download
memory/336-11-0x0000000002900000-0x0000000002968000-memory.dmp

Filesize
416KB

Download
memory/336-14-0x0000000002900000-0x0000000002968000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads