905e7a135834baf2f139e57b3ba4e59892684221d3132ff6463ad1902a0b11cd

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
02-06-2024 16:48

Target

91vpn(3.5.4)/91vpn/httpproxy.dll
Size

105KB
MD5

16848d947d10770269512554a0defb7d
SHA1

5299bc40a1944a34537904983af7b61ada6227c3
SHA256

41a8aca7eb8483243676f2473cd98de507d814fdd7db81653c0aee0a69cdaff9
SHA512

5bde5b62b30365ce14f94d7546ffa015f4c07435211078c5e8767886b1438e361763c09d3e9e05193117e3c5e57bda048eda211b5e36132139ac690b5eafefb8
SSDEEP

1536:e8/zU/fGxBhO05YAoEYH7Th4F9dxMbRSPkJsBTAALlkWtOnCEePRQyo:tzU/8hOOxce5+beBTAALJOnCEePCd

Score

7^/10

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid	Process
2376	rundll32.exe

Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\91vpn.log	rundll32.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1744	2376	WerFault.exe	28

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 2932 wrote to memory of 2376	2932	rundll32.exe	28
PID 2932 wrote to memory of 2376	2932	rundll32.exe	28
PID 2932 wrote to memory of 2376	2932	rundll32.exe	28
PID 2932 wrote to memory of 2376	2932	rundll32.exe	28
PID 2932 wrote to memory of 2376	2932	rundll32.exe	28
PID 2932 wrote to memory of 2376	2932	rundll32.exe	28
PID 2932 wrote to memory of 2376	2932	rundll32.exe	28
PID 2376 wrote to memory of 1744	2376	rundll32.exe	29
PID 2376 wrote to memory of 1744	2376	rundll32.exe	29
PID 2376 wrote to memory of 1744	2376	rundll32.exe	29
PID 2376 wrote to memory of 1744	2376	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\91vpn(3.5.4)\91vpn\httpproxy.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\91vpn(3.5.4)\91vpn\httpproxy.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2376
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2376 -s 236
    3⤵
    - Program crash
    PID:1744

\Users\Admin\AppData\Local\Temp\1F92.tmp

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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