b4e71c56d0b0d3be945d960623b4206d591d27c4e5d0b24757d7a43756f77fc0

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 13:58

Target

b4e71c56d0b0d3be945d960623b4206d591d27c4e5d0b24757d7a43756f77fc0.dll
Size

247KB
MD5

6149fecd64f55ef8c102c2a48ee34298
SHA1

6d127ffd03f0e4128804fe7f6c72482e12119936
SHA256

b4e71c56d0b0d3be945d960623b4206d591d27c4e5d0b24757d7a43756f77fc0
SHA512

9291451a30158de16e6b4f2510f9577733a75cd496eba12aedee9b57195a481ee56a7360cb26bf910bb5d3f7ef7d6b31725e7aedf4cf65029a0d100fa3ebab4f
SSDEEP

3072:WYnM9A5UEPeA2ggz/3ezHkta1D+ThXn/n9SGeMt2lQBV+UdE+rECWp7hKcb+:TMrzz/wEtZlf9xBV+UdvrEFp7hKJ

Score

7^/10

upx

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c00000001224c-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2944	rundll32.exe

UPX packed file 3 IoCs

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

resource	yara_rule
behavioral1/files/0x000c00000001224c-1.dat	upx
behavioral1/memory/2944-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2944-6-0x0000000010000000-0x0000000010030000-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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2944	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 2944	1952	rundll32.exe	28
PID 1952 wrote to memory of 2944	1952	rundll32.exe	28
PID 1952 wrote to memory of 2944	1952	rundll32.exe	28
PID 1952 wrote to memory of 2944	1952	rundll32.exe	28
PID 1952 wrote to memory of 2944	1952	rundll32.exe	28
PID 1952 wrote to memory of 2944	1952	rundll32.exe	28
PID 1952 wrote to memory of 2944	1952	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4e71c56d0b0d3be945d960623b4206d591d27c4e5d0b24757d7a43756f77fc0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4e71c56d0b0d3be945d960623b4206d591d27c4e5d0b24757d7a43756f77fc0.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2944

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2944-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2944-4-0x0000000075000000-0x000000007502C000-memory.dmp

Filesize
176KB

Download
memory/2944-5-0x0000000075000000-0x000000007502C000-memory.dmp

Filesize
176KB

Download
memory/2944-6-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download