f4c12b145b29080af85a99957f5b9c75a06f32a438538fe6c6b4bec262280d9c

Analysis

max time kernel
149s
max time network
138s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
19/05/2026, 11:48

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General

Target
client.exe
Size 1.5MB
Sample260519-nyefssa14x
SHA256 f4c12b145b29080af85a99957f5b9c75a06f32a438538fe6c6b4bec262280d9c
MD5 750ad3855b941ac16cfa607b86dac86d
SHA1 f1a95741cccab42b9157e5e016d925a4bfc3dd29
SHA512 8b7ddba5928f05780682130eb00ecbd42f7aecc614064d9a386d5395e6e653cab18816be92e9a011eaca90b85a6c01250be46f0a956c6ed7754bbf2853392e3b
SSDEEP 24576:dYUgpLH4Ag9q8uTB638kVyM2KZUIaLkFa7hTproljTe/CoGbdsKztWvy7F/geThy:tgC9V38kgxKZTEh/la7ZThVVQk6aGpEC
TLSH
T1BF755D11E651D03BF9E300FAC7FA05BDAE24AA30134524D793C47CD9AB668E57D3292B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery persistence spyware stealer

Malware Config

Signatures

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-226940941-599731907-2645636698-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsHelper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\client.exe"	client.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	api.ipify.org
3	api.ipify.org

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 3 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	client.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5464	timeout.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 1792	1260	client.exe	83
PID 1792 wrote to memory of 5464	1792	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\client.exe
"C:\Users\Admin\AppData\Local\Temp\client.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\destroy.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1792
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 2 /nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5464

C:\Users\Admin\AppData\Local\Temp\client.exe
C:\Users\Admin\AppData\Local\Temp\client.exe
1⤵
PID:6012

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

destroy.bat

Path C:\Users\Admin\AppData\Local\Temp\destroy.bat
Size 231B
SHA256 583d08a0f3268ffe9eaa3033cfc21b5b3b25bf9218b5c44ddccdfaae60dda55e
MD5 8336130583a321567abaf7715fa13d9d
SHA1 51ff36a76b3e118290cc54fc262b117a9da88bac
SHA512 68e006d1785d72dc203ecdabd14823760f27ae1014b626dce35811f15d684e244dbce98cf17cf111eecd714c520b803733aa84170810f3a15173fb197c3009c5
TLSH
T16AD0A701518787A9040070774ABF61CCB07808292F8577624661C02D65C741FB7E77C1
MD5 SHA1 SHA512 TLSH

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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