bb4865430c79f45441c4c12728ac4a43b4ef5f4f61542ddc550e6097c9f5d348

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/04/2024, 01:35

Target

bb4865430c79f45441c4c12728ac4a43b4ef5f4f61542ddc550e6097c9f5d348.dll
Size

292KB
MD5

6daeb3d42098a84b5a44e6b16d9f6231
SHA1

d4f012fcb61b0aa5344bfa8c942e7ee7ec90ec07
SHA256

bb4865430c79f45441c4c12728ac4a43b4ef5f4f61542ddc550e6097c9f5d348
SHA512

1827b8454a34931c439150a95814501db66a7877da8ea2a98749872e878c1f8e0d9a94c809ca8e68df06ba947b96dfa801def30150ff8154ba2b0206b976ab2a
SSDEEP

6144:TsKFrMaCNoD5NNreJb0/FkBV+UdvrEFp7hKpGI:lKX+5NX/FkBjvrEH7GGI

Score

9^/10

upx

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013a7c-1.dat	UPX
behavioral1/memory/2584-3-0x0000000000220000-0x0000000000250000-memory.dmp	UPX
behavioral1/memory/2584-4-0x0000000000220000-0x0000000000250000-memory.dmp	UPX

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c000000013a7c-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2584	rundll32.exe

UPX packed file 3 IoCs

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

resource	yara_rule
behavioral1/files/0x000c000000013a7c-1.dat	upx
behavioral1/memory/2584-3-0x0000000000220000-0x0000000000250000-memory.dmp	upx
behavioral1/memory/2584-4-0x0000000000220000-0x0000000000250000-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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2584	2252	rundll32.exe	28
PID 2252 wrote to memory of 2584	2252	rundll32.exe	28
PID 2252 wrote to memory of 2584	2252	rundll32.exe	28
PID 2252 wrote to memory of 2584	2252	rundll32.exe	28
PID 2252 wrote to memory of 2584	2252	rundll32.exe	28
PID 2252 wrote to memory of 2584	2252	rundll32.exe	28
PID 2252 wrote to memory of 2584	2252	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb4865430c79f45441c4c12728ac4a43b4ef5f4f61542ddc550e6097c9f5d348.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb4865430c79f45441c4c12728ac4a43b4ef5f4f61542ddc550e6097c9f5d348.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  PID:2584

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2584-3-0x0000000000220000-0x0000000000250000-memory.dmp

Filesize
192KB

Download
memory/2584-4-0x0000000000220000-0x0000000000250000-memory.dmp

Filesize
192KB

Download