a41bf6f21339ac6f3b633af32fa60008b91305e5cf5a0c391fba0d38c7340e75

Analysis

max time kernel
140s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 08:35

Target

a41bf6f21339ac6f3b633af32fa60008b91305e5cf5a0c391fba0d38c7340e75.dll
Size

223KB
MD5

2bee69925eb3807ac438ccd807150d33
SHA1

99de6a677fd383666c13b888217971396dd3354f
SHA256

a41bf6f21339ac6f3b633af32fa60008b91305e5cf5a0c391fba0d38c7340e75
SHA512

31a507e0237c7dbfb145d09f3ae01ab17229eb97a31e0d69cec7be4fbc083b8ddd3aa6b983b899c8d6c4b795c87c1f08bea073ee7b831fe34fe8ff08f40a7b1b
SSDEEP

3072:6huf5AUWGIcvnJvK2agufj/ZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKm:ZBAUWGBVagufj4LIBV+UdvrEFp7hKm

Score

7^/10

upx

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000a000000015c52-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2512	rundll32.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

resource	yara_rule
behavioral1/files/0x000a000000015c52-1.dat	upx
behavioral1/memory/2512-3-0x0000000000650000-0x0000000000680000-memory.dmp	upx
behavioral1/memory/2512-6-0x0000000000650000-0x0000000000680000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2268	2512	WerFault.exe	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2512	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 2512	2960	rundll32.exe	28
PID 2960 wrote to memory of 2512	2960	rundll32.exe	28
PID 2960 wrote to memory of 2512	2960	rundll32.exe	28
PID 2960 wrote to memory of 2512	2960	rundll32.exe	28
PID 2960 wrote to memory of 2512	2960	rundll32.exe	28
PID 2960 wrote to memory of 2512	2960	rundll32.exe	28
PID 2960 wrote to memory of 2512	2960	rundll32.exe	28
PID 2512 wrote to memory of 2268	2512	rundll32.exe	29
PID 2512 wrote to memory of 2268	2512	rundll32.exe	29
PID 2512 wrote to memory of 2268	2512	rundll32.exe	29
PID 2512 wrote to memory of 2268	2512	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a41bf6f21339ac6f3b633af32fa60008b91305e5cf5a0c391fba0d38c7340e75.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a41bf6f21339ac6f3b633af32fa60008b91305e5cf5a0c391fba0d38c7340e75.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2512
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2512 -s 328
    3⤵
    - Program crash
    PID:2268

\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2512-3-0x0000000000650000-0x0000000000680000-memory.dmp

Filesize
192KB

Download
memory/2512-5-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download
memory/2512-6-0x0000000000650000-0x0000000000680000-memory.dmp

Filesize
192KB

Download