a8d9e78e7377d989847172a510ff43129cdded068e6727b7cbeff83237c12e60

Analysis

max time kernel
146s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
11/01/2024, 11:34

Target

a8d9e78e7377d989847172a510ff43129cdded068e6727b7cbeff83237c12e60.dll
Size

2.0MB
MD5

4b43e2c19253905817b395d9343b7eda
SHA1

555c1ea0ed0680d2479071f46c1a68c1f8c8389a
SHA256

a8d9e78e7377d989847172a510ff43129cdded068e6727b7cbeff83237c12e60
SHA512

897798ea137d0a65ef180f15b9475992b7f7c18a78978b5d618b630cba5a30f01d776a767174c37bc23f6a3e6923aeb4db156cd9271d9a228b7e685d4326b8b0
SSDEEP

49152:YbR9b0sn90JHxac0DswNZopwECn8zGkHJOQUZF66:e9b0s90JHxsDswZoe/nyGkHJPUt

Score

7^/10

upx

Loads dropped DLL 1 IoCs

pid	Process
1924	rundll32.exe

UPX packed file 2 IoCs

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

resource	yara_rule
behavioral2/memory/1924-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1924-7-0x0000000010000000-0x0000000010030000-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 2 IoCs

pid	pid_target	Process	procid_target
4496	1924	WerFault.exe	14
520	1924	WerFault.exe	14

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 1924	4352	rundll32.exe	14
PID 4352 wrote to memory of 1924	4352	rundll32.exe	14
PID 4352 wrote to memory of 1924	4352	rundll32.exe	14

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8d9e78e7377d989847172a510ff43129cdded068e6727b7cbeff83237c12e60.dll,#1
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
PID:1924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 544
  2⤵
  - Program crash
  PID:4496
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 640
  2⤵
  - Program crash
  PID:520

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8d9e78e7377d989847172a510ff43129cdded068e6727b7cbeff83237c12e60.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 1924 -ip 1924
1⤵
PID:4724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1924 -ip 1924
1⤵
PID:4168

memory/1924-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1924-5-0x0000000074A60000-0x0000000074C4B000-memory.dmp

Filesize
1.9MB

Download
memory/1924-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download