7270d05e8d42a82634ee2ac52b7256557612b22e7e60fc56a05cb5961a9c2f02

Analysis

max time kernel
137s
max time network
140s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
11/08/2026, 10:48

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General

Target
pdfCORE8.dll
Size 3.8MB
Sample260811-mv5cdacp7x
SHA256 7270d05e8d42a82634ee2ac52b7256557612b22e7e60fc56a05cb5961a9c2f02
MD5 4b13512473492fc5ca0d60cef3c5421f
SHA1 a84b1bb79b88e4af51d5c6e1f55aa6b849c82f22
SHA512 abb20574225f3b760cf830c60dc5932e4906faa073865b090d31f2a83e5265ca99a353e43d46c1d23851901d5c2e78a1de607afc828ba8be5dd743712fa25b65
SSDEEP 98304:i4LMLEOsQahsGtiIwu5JCSM1UAFZY7lYSzPyi60q:ihjIfCSM1xFSYsa
TLSH
T1F206CF13354880FBD16B127A9519B6A5F3BDF4700BE50CD76BD8B60C2D33C82B6296A7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4146128427-3460078792-3629963422-1000\Control Panel\International\Geo\Nation	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 1940	3396	rundll32.exe	83
PID 1940 wrote to memory of 4728	1940	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\pdfCORE8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\pdfCORE8.dll,#1
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4728

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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