02b2807a96708694d9b8f2f229b4d36bb1d6bbce35e910c82f87e65a4e5b08b0

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 17:59

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General

Target
$PLUGINSDIR/nsArray.dll
Size 12KB
Sample240309-wkpcvaeb57
SHA256 072086de8c1d354733b4f3555482656728e0a26be715e76b90c3a71faac7f8f6
MD5 6c41b7846fccb6edbbeba7ae13abbce2
SHA1 eebf8ef6bc529262ed9b0b38f21e49af243b8d75
SHA512 8189f41c564cb330c0f4c4b73c53f41c924a54914a62e80885451643d8ed7a3d7c5b6f7cd4b2a88a83a2ef1b6f063184812c53dda398eabd3508dd0ea02044de
SSDEEP 192:OaNHOZqWdn+/a4YZkv1uULW1C4w2X2bMsj/nYe+PjPArJUxVl+vlJar9ZCspE+Tf:OQudRQaYAU6hXUnYPLWUHWteMu/
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 2 IoCs

resource	yara_rule
behavioral23/memory/2384-1-0x0000000074F50000-0x0000000074F5A000-memory.dmp	UPX
behavioral23/memory/2384-2-0x0000000074F50000-0x0000000074F5A000-memory.dmp	UPX

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral23/memory/2384-1-0x0000000074F50000-0x0000000074F5A000-memory.dmp	upx
behavioral23/memory/2384-2-0x0000000074F50000-0x0000000074F5A000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3044	2384	WerFault.exe	28

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2384	2416	rundll32.exe	28
PID 2416 wrote to memory of 2384	2416	rundll32.exe	28
PID 2416 wrote to memory of 2384	2416	rundll32.exe	28
PID 2416 wrote to memory of 2384	2416	rundll32.exe	28
PID 2416 wrote to memory of 2384	2416	rundll32.exe	28
PID 2416 wrote to memory of 2384	2416	rundll32.exe	28
PID 2416 wrote to memory of 2384	2416	rundll32.exe	28
PID 2384 wrote to memory of 3044	2384	rundll32.exe	29
PID 2384 wrote to memory of 3044	2384	rundll32.exe	29
PID 2384 wrote to memory of 3044	2384	rundll32.exe	29
PID 2384 wrote to memory of 3044	2384	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 220
    3⤵
    - Program crash
    PID:3044

Network

MITRE ATT&CK Matrix

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Downloads

memory/2384-0-0x0000000074F60000-0x0000000074F6A000-memory.dmp

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memory/2384-1-0x0000000074F50000-0x0000000074F5A000-memory.dmp

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memory/2384-2-0x0000000074F50000-0x0000000074F5A000-memory.dmp

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memory/2384-5-0x0000000074F60000-0x0000000074F6A000-memory.dmp

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memory/2384-6-0x0000000074F60000-0x0000000074F6A000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads