129f1dd1b0870fda07f5170d6f3ef1b87274726fe9c827c0e95ae8dd73ad2502

Analysis

max time kernel
140s
max time network
128s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
05-11-2023 09:39

Target

NEAS.4d193948c5cdfb61a1402ab0970a7450_JC.dll
Size

275KB
MD5

4d193948c5cdfb61a1402ab0970a7450
SHA1

0eca18b346e5064b562f838188e2d1ad43a6e2a4
SHA256

129f1dd1b0870fda07f5170d6f3ef1b87274726fe9c827c0e95ae8dd73ad2502
SHA512

e6d34f0f5f8ed609d712d72fb24ab3c0935b87fba2af38554d8e7ca55bfc591ef5f4f91e2689abc6b24e0476029a7e59794e3d7fe7af01d0c622a006834c0956
SSDEEP

6144:sZRmNHCiKNjMMCuTBB/vOKBNoNBV+UdvrEFp7hKR:sZRMCicuuT7KNBjvrEH7i

Score

7^/10

upx

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0008000000012024-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2140	rundll32.exe

UPX packed file 3 IoCs

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

resource	yara_rule
behavioral1/files/0x0008000000012024-1.dat	upx
behavioral1/memory/2140-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2140-6-0x0000000010000000-0x0000000010030000-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
2356	2140	WerFault.exe	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2140	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2140	2516	rundll32.exe	28
PID 2516 wrote to memory of 2140	2516	rundll32.exe	28
PID 2516 wrote to memory of 2140	2516	rundll32.exe	28
PID 2516 wrote to memory of 2140	2516	rundll32.exe	28
PID 2516 wrote to memory of 2140	2516	rundll32.exe	28
PID 2516 wrote to memory of 2140	2516	rundll32.exe	28
PID 2516 wrote to memory of 2140	2516	rundll32.exe	28
PID 2140 wrote to memory of 2356	2140	rundll32.exe	29
PID 2140 wrote to memory of 2356	2140	rundll32.exe	29
PID 2140 wrote to memory of 2356	2140	rundll32.exe	29
PID 2140 wrote to memory of 2356	2140	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.4d193948c5cdfb61a1402ab0970a7450_JC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.4d193948c5cdfb61a1402ab0970a7450_JC.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2140
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2140 -s 336
    3⤵
    - Program crash
    PID:2356

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2140-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2140-4-0x0000000074CB0000-0x0000000074CE3000-memory.dmp

Filesize
204KB

Download
memory/2140-6-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download