badrabbit | 137cfbc6611add95e7dd00247098efc9aa4b16771d62c20a5d149f2181da6d6c

Analysis

max time kernel
209s
max time network
191s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
03/04/2025, 02:47

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General

Target

Urgent Contract Action.pdf.exe
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
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
behavioral3/files/0x000800000001da09-20.dat	mimikatz

Executes dropped EXE 3 IoCs

pid	Process
3776	A940.tmp
3932	dispci.exe
852	dispci.exe

Loads dropped DLL 1 IoCs

pid	Process
3972	rundll32.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\infpub.dat	Urgent Contract Action.pdf.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\A940.tmp	rundll32.exe

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dispci.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dispci.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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	cmd.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	Urgent Contract Action.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000_Classes\Local Settings	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
244	NOTEPAD.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
2996	schtasks.exe
2984	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3972	rundll32.exe
3972	rundll32.exe
3972	rundll32.exe
3972	rundll32.exe
3776	A940.tmp
3776	A940.tmp
3776	A940.tmp
3776	A940.tmp
3776	A940.tmp
3776	A940.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3972	rundll32.exe
Token: SeDebugPrivilege	3972	rundll32.exe
Token: SeTcbPrivilege	3972	rundll32.exe
Token: SeDebugPrivilege	3776	A940.tmp

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3932	dispci.exe
3932	dispci.exe
852	dispci.exe
852	dispci.exe
3956	OpenWith.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 3972	2980	Urgent Contract Action.pdf.exe	88
PID 2980 wrote to memory of 3972	2980	Urgent Contract Action.pdf.exe	88
PID 2980 wrote to memory of 3972	2980	Urgent Contract Action.pdf.exe	88
PID 3972 wrote to memory of 4024	3972	rundll32.exe	89
PID 3972 wrote to memory of 4024	3972	rundll32.exe	89
PID 3972 wrote to memory of 4024	3972	rundll32.exe	89
PID 4024 wrote to memory of 2000	4024	cmd.exe	91
PID 4024 wrote to memory of 2000	4024	cmd.exe	91
PID 4024 wrote to memory of 2000	4024	cmd.exe	91
PID 3972 wrote to memory of 3588	3972	rundll32.exe	96
PID 3972 wrote to memory of 3588	3972	rundll32.exe	96
PID 3972 wrote to memory of 3588	3972	rundll32.exe	96
PID 3588 wrote to memory of 2996	3588	cmd.exe	98
PID 3588 wrote to memory of 2996	3588	cmd.exe	98
PID 3588 wrote to memory of 2996	3588	cmd.exe	98
PID 3972 wrote to memory of 2348	3972	rundll32.exe	99
PID 3972 wrote to memory of 2348	3972	rundll32.exe	99
PID 3972 wrote to memory of 2348	3972	rundll32.exe	99
PID 3972 wrote to memory of 3776	3972	rundll32.exe	101
PID 3972 wrote to memory of 3776	3972	rundll32.exe	101
PID 2348 wrote to memory of 2984	2348	cmd.exe	103
PID 2348 wrote to memory of 2984	2348	cmd.exe	103
PID 2348 wrote to memory of 2984	2348	cmd.exe	103
PID 3932 wrote to memory of 5072	3932	dispci.exe	127
PID 3932 wrote to memory of 5072	3932	dispci.exe	127
PID 3932 wrote to memory of 5072	3932	dispci.exe	127
PID 5072 wrote to memory of 2104	5072	cmd.exe	129
PID 5072 wrote to memory of 2104	5072	cmd.exe	129
PID 5072 wrote to memory of 2104	5072	cmd.exe	129
PID 852 wrote to memory of 388	852	dispci.exe	132
PID 852 wrote to memory of 388	852	dispci.exe	132
PID 852 wrote to memory of 388	852	dispci.exe	132
PID 388 wrote to memory of 396	388	cmd.exe	134
PID 388 wrote to memory of 396	388	cmd.exe	134
PID 388 wrote to memory of 396	388	cmd.exe	134

C:\Users\Admin\AppData\Local\Temp\Urgent Contract Action.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Urgent Contract Action.pdf.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2980
- 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:3972
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4024
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      System Location Discovery: System Language Discovery
      PID:2000
- - 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 4206746066 && exit"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3588
  - - 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 4206746066 && exit"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2996
- - 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 03:05:00
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2348
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 03:05:00
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2984
- - C:\Windows\A940.tmp
    "C:\Windows\A940.tmp" \\.\pipe\{129D3813-C41D-4476-B327-BC400081F6ED}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3776

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2724

C:\Windows\dispci.exe
"C:\Windows\dispci.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Windows\SysWOW64\cmd.exe
  /c schtasks /Delete /F /TN rhaegal
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5072
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Delete /F /TN rhaegal
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2104

C:\Windows\dispci.exe
"C:\Windows\dispci.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:852
- C:\Windows\SysWOW64\cmd.exe
  /c schtasks /Delete /F /TN rhaegal
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:388
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Delete /F /TN rhaegal
    3⤵
    - System Location Discovery: System Language Discovery
    PID:396

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Windows\DtcInstall.log
1⤵
- Opens file in notepad (likely ransom note)
PID:244

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:3956

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:\Windows\A940.tmp

Filesize
60KB

MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
C:\Windows\dispci.exe

Filesize
139KB

MD5
b14d8faf7f0cbcfad051cefe5f39645f

SHA1
afeee8b4acff87bc469a6f0364a81ae5d60a2add

SHA256
8ebc97e05c8e1073bda2efb6f4d00ad7e789260afa2c276f0c72740b838a0a93

SHA512
f5dcbf3634aedfe5b8d6255e20015555343add5b1be3801e62a5987e86a3e52495b5ce3156e4f63cf095d0cedfb63939eaf39bea379ccac82a10a4182b8ded22

Download Submit
C:\Windows\infpub.dat

Filesize
401KB

MD5
1d724f95c61f1055f0d02c2154bbccd3

SHA1
79116fe99f2b421c52ef64097f0f39b815b20907

SHA256
579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648

SHA512
f2d7b018d1516df1c97cfff5507957c75c6d9bf8e2ce52ae0052706f4ec62f13eba6d7be17e6ad2b693fdd58e1fd091c37f17bd2b948cdcd9b95b4ad428c0113

Download Submit
memory/3972-4-0x0000000002D60000-0x0000000002DC8000-memory.dmp

Filesize
416KB

Download
memory/3972-11-0x0000000002D60000-0x0000000002DC8000-memory.dmp

Filesize
416KB

Download
memory/3972-14-0x0000000002D60000-0x0000000002DC8000-memory.dmp

Filesize
416KB

Download