Overview

overview

10

Static

static

3

d698f4a95e...1f.exe

windows7-x64

10

d698f4a95e...1f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    94s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-05-2024 03:12

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General

  • Target

    d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe

  • Size

    2.0MB

  • MD5

    8122eccc7f6626465aea3665bc561514

  • SHA1

    c2037dd299d568296da48c942ff9bec63332ea5b

  • SHA256

    d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f

  • SHA512

    2faf1534e65673cee0a0d4f9f43050112305bb9f6ba3a1ea3c5af7f9e36250129180d3e89be984fcaa24d2cdf0354a12cf7b84fa783772964a7266ca66c5aaa0

  • SSDEEP

    49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

Score
10/10
stealcvidardiscoveryspywarestealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin
Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

  • Detect Vidar Stealer 8 IoCs
    stealer
  • Stealc

    Stealc is an infostealer written in C++.

    stealerstealc
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

    stealervidar
  • Detect binaries embedding considerable number of MFA browser extension IDs. 4 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 4 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 7 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 4 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 7 IoCs
  • Detects executables containing potential Windows Defender anti-emulation checks 7 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 1 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe
    "C:\Users\Admin\AppData\Local\Temp\d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Users\Admin\AppData\Local\Temp\kat40E1.tmp
      C:\Users\Admin\AppData\Local\Temp\kat40E1.tmp
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:540

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\kat40E1.tmp
    Filesize

    861KB

    MD5

    66064dbdb70a5eb15ebf3bf65aba254b

    SHA1

    0284fd320f99f62aca800fb1251eff4c31ec4ed7

    SHA256

    6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

    SHA512

    b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

    Download Submit
  • memory/540-4-0x0000000000400000-0x0000000000646000-memory.dmp
    Filesize

    2.3MB

    Download
  • memory/540-9-0x0000000000400000-0x0000000000646000-memory.dmp
    Filesize

    2.3MB

    Download
  • memory/540-10-0x0000000000400000-0x0000000000646000-memory.dmp
    Filesize

    2.3MB

    Download
  • memory/540-17-0x0000000000400000-0x0000000000646000-memory.dmp
    Filesize

    2.3MB

    Download
  • memory/540-18-0x0000000000400000-0x0000000000646000-memory.dmp
    Filesize

    2.3MB

    Download
  • memory/540-20-0x000000001DC90000-0x000000001DEEF000-memory.dmp
    Filesize

    2.4MB

    Download
  • memory/540-35-0x0000000000400000-0x0000000000646000-memory.dmp
    Filesize

    2.3MB

    Download
  • memory/540-36-0x0000000000400000-0x0000000000646000-memory.dmp
    Filesize

    2.3MB

    Download
  • memory/2360-0-0x0000000002370000-0x0000000002371000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2360-1-0x0000000004020000-0x0000000004169000-memory.dmp
    Filesize

    1.3MB

    Download
  • memory/2360-6-0x0000000000400000-0x000000000060C000-memory.dmp
    Filesize

    2.0MB

    Download