15b797f3ae5fcc4badf25544d7f6b9a45ab1bfeb648c6bd7ee0879efd1917e49

Analysis

max time kernel
141s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11/09/2024, 10:28

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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

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral15/memory/1720-3-0x00000000751C0000-0x00000000751CA000-memory.dmp	upx
behavioral15/memory/1720-4-0x00000000751C0000-0x00000000751CA000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1996	1720	WerFault.exe	30

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 11 IoCs

description	pid	Process	procid_target
PID 2024 wrote to memory of 1720	2024	rundll32.exe	30
PID 2024 wrote to memory of 1720	2024	rundll32.exe	30
PID 2024 wrote to memory of 1720	2024	rundll32.exe	30
PID 2024 wrote to memory of 1720	2024	rundll32.exe	30
PID 2024 wrote to memory of 1720	2024	rundll32.exe	30
PID 2024 wrote to memory of 1720	2024	rundll32.exe	30
PID 2024 wrote to memory of 1720	2024	rundll32.exe	30
PID 1720 wrote to memory of 1996	1720	rundll32.exe	31
PID 1720 wrote to memory of 1996	1720	rundll32.exe	31
PID 1720 wrote to memory of 1996	1720	rundll32.exe	31
PID 1720 wrote to memory of 1996	1720	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1720
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 220
    3⤵
    - Program crash
    PID:1996

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/1720-3-0x00000000751C0000-0x00000000751CA000-memory.dmp

Filesize
40KB

Download
memory/1720-2-0x00000000751A0000-0x00000000751AA000-memory.dmp

Filesize
40KB

Download
memory/1720-0-0x00000000751C0000-0x00000000751CA000-memory.dmp

Filesize
40KB

Download
memory/1720-1-0x00000000751B0000-0x00000000751BA000-memory.dmp

Filesize
40KB

Download
memory/1720-4-0x00000000751C0000-0x00000000751CA000-memory.dmp

Filesize
40KB

Download
memory/1720-5-0x00000000751B0000-0x00000000751BA000-memory.dmp

Filesize
40KB

Download
memory/1720-6-0x00000000751A0000-0x00000000751AA000-memory.dmp

Filesize
40KB

Download