0db4e867b5950b3cacd11da7721cebcfe0f15048872d71b6bdcbb572e46502ef

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 23:12

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General

Target

$PLUGINSDIR/nsArray.dll
Size

6KB
MD5

7b42ce0bb387ae8a452136da404bf6b0
SHA1

1d9a116d55be1beb0089e392d5ae342e2bffa8a4
SHA256

af19101a9303306e7bb8c3ddb7f1174e43b9b8ef969e78b504545ed6afe42fb7
SHA512

c50d4a172af361d2978d4204afb712581ffe558950b775e8f0a9fa29e6e8d2076e603fae5417358dceee30c4d4906d8d2dfb4879028818f0f303b8c21f2f6032
SSDEEP

96:WvGBPJ7s2zb0UTh76o11VzD73H5fA7tfXxLfA2i:oix710A7lv/3ixX22i

Score

7^/10

discovery upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral28/memory/3588-0-0x0000000075440000-0x000000007544A000-memory.dmp	acprotect
behavioral28/memory/3588-1-0x0000000075440000-0x000000007544A000-memory.dmp	acprotect

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral28/memory/3588-0-0x0000000075440000-0x000000007544A000-memory.dmp	upx
behavioral28/memory/3588-1-0x0000000075440000-0x000000007544A000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3568	3588	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4192 wrote to memory of 3588	4192	rundll32.exe	82
PID 4192 wrote to memory of 3588	4192	rundll32.exe	82
PID 4192 wrote to memory of 3588	4192	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4192
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3588
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 604
    3⤵
    - Program crash
    PID:3568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 3588 -ip 3588
1⤵
PID:3928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3588-0-0x0000000075440000-0x000000007544A000-memory.dmp

Filesize
40KB

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memory/3588-1-0x0000000075440000-0x000000007544A000-memory.dmp

Filesize
40KB

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