8b2c1c503028727000a3c4c10afcde49894d1931b3099a3ab6549d3f7d545276

Analysis

max time kernel
438s
max time network
444s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20250314-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250314-enlocale:en-usos:windows10-ltsc_2021-x64system
submitted
03/04/2025, 09:22

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General

Target

EMV Reader Writer/X1v5/zlib1.dll
Size

105KB
MD5

b8a9e91134e7c89440a0f95470d5e47b
SHA1

3cbcee30fc0a7e9807931bc0dafceb627042bfc9
SHA256

42967a768f341d9ce5174eb38a4d63754c3c41739e7d88f4e39cd7354c1fac71
SHA512

e8583ea94b9d1321889359317e367abc88e90e96d0d9243258244a527ffa2b13ab97d0787693ca328960ceb934ea11eefd14abafd640a654473c26e420d2ec54
SSDEEP

3072:Y15jVjUqf9CtXH/4UghkGTBfmJyqLEC9BRY:Yf81wpTB+Jyqb

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
908	4400	WerFault.exe	84

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 5572 wrote to memory of 4400	5572	rundll32.exe	84
PID 5572 wrote to memory of 4400	5572	rundll32.exe	84
PID 5572 wrote to memory of 4400	5572	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\EMV Reader Writer\X1v5\zlib1.dll",#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5572
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Local\Temp\EMV Reader Writer\X1v5\zlib1.dll",#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4400
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 600
    3⤵
    - Program crash
    PID:908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4400 -ip 4400
1⤵
PID:4516

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/4400-0-0x0000000062E80000-0x0000000062EA2000-memory.dmp

Filesize
136KB

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