09171c9dac4c7e0106d83653baded7108fa6ce7f218be6e2e93c41e8efc3ca59

Analysis

max time kernel
51s
max time network
52s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12/06/2024, 18:28

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General

Target
2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe
Size 1.3MB
Sample240612-w4ac2avepe
SHA256 09171c9dac4c7e0106d83653baded7108fa6ce7f218be6e2e93c41e8efc3ca59
MD5 183f1b1f3e62361c9d3b6f7b8d0c0ac0
SHA1 38413d1f260884387308b1f5c79fb1525e06e679
SHA512 3872d07614bf4d67c9b8514329c61e350009a36833135a24fa58fa66e5824f6a0db037f8391c3b638a0b113d82a946e2c996fb427b0d69be19a34c689a68d889
SSDEEP 24576:7rKqlGCPcJKwybUDwEZZODYmR9G+gnbkk6XRJfe3DqYO/KpLwFfngWX4VmJPakZ:7rKo4ZwCOnYjVmJPai
MD5 SHA1 SHA512 SSDEEP

Score

5^/10

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 624 set thread context of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1264	4704	WerFault.exe	80
1912	4704	WerFault.exe	80

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4704	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe
4704	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe
4704	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe
4704	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe
4704	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 624 wrote to memory of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80
PID 624 wrote to memory of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80
PID 624 wrote to memory of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80
PID 624 wrote to memory of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80
PID 624 wrote to memory of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80
PID 624 wrote to memory of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80
PID 624 wrote to memory of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80
PID 624 wrote to memory of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80
PID 624 wrote to memory of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80
PID 624 wrote to memory of 4704	624	2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe	80

C:\Users\Admin\AppData\Local\Temp\2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:624
- C:\Users\Admin\AppData\Local\Temp\2024-06-12_183f1b1f3e62361c9d3b6f7b8d0c0ac0_bkransomware_buzus.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:4704
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1928
    3⤵
    - Program crash
    PID:1912
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1964
    3⤵
    - Program crash
    PID:1264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4704 -ip 4704
1⤵
PID:3632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4704 -ip 4704
1⤵
PID:4612

Network

MITRE ATT&CK Matrix

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Downloads

memory/4704-0-0x0000000000400000-0x00000000004D9000-memory.dmp

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memory/4704-1-0x0000000000400000-0x00000000004D9000-memory.dmp

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memory/4704-2-0x0000000000400000-0x00000000004D9000-memory.dmp

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memory/4704-4-0x0000000000400000-0x00000000004D9000-memory.dmp

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memory/4704-3-0x0000000000400000-0x00000000004D9000-memory.dmp

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memory/4704-5-0x0000000000400000-0x00000000004D9000-memory.dmp

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memory/4704-6-0x0000000000400000-0x00000000004D9000-memory.dmp

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memory/4704-10-0x0000000000400000-0x00000000004D9000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads