11c50f2f12ce77d8f1d6098733ba9e3e4e08e81e54ac613df2b006d53f08efc2 | Triage

Analysis

max time kernel
143s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04-02-2024 10:54

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General

Target

$PLUGINSDIR/nsArray.dll
Size

6KB
MD5

7fc4723bb0a4118e5f91047021d1aacd
SHA1

092a321a21d802045105ecc8cd3c9d7d2c6da923
SHA256

8f9bfeebfa3b070b116de61a63271b6c25af0dbb4bbfb4ae73e334d1f8517efd
SHA512

1fe86533987ff1c4d446b231dc1ff2c3bbce224ae91b73ffead539f08740bfb06d2f40f1aedf0571106dc4e12eec27aa32018c2bf5361b7488c07b4d90800f02
SSDEEP

192:EaNHOZqWdn+/a4YZkv1uULW1C4w2X2bM:EQudRQaYAU6hX

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

resource	yara_rule
behavioral20/memory/3400-0-0x0000000075580000-0x000000007558A000-memory.dmp	upx
behavioral20/memory/3400-1-0x0000000075580000-0x000000007558A000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4676	3400	WerFault.exe	84

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 3400	2108	rundll32.exe	84
PID 2108 wrote to memory of 3400	2108	rundll32.exe	84
PID 2108 wrote to memory of 3400	2108	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
  2⤵
  PID:3400
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3400 -s 600
    3⤵
    - Program crash
    PID:4676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3400 -ip 3400
1⤵
PID:1344

Network

MITRE ATT&CK Matrix

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Downloads

memory/3400-0-0x0000000075580000-0x000000007558A000-memory.dmp

Filesize
40KB

Download
memory/3400-1-0x0000000075580000-0x000000007558A000-memory.dmp

Filesize
40KB

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