Overview

overview

10

Static

static

03e7e9ead5...9e.exe

windows7_x64

10

03e7e9ead5...9e.exe

windows10_x64

10

Analysis

  • max time kernel
    121s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    07/01/2022, 07:58

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General

  • Target
    03e7e9ead519d5a86a03306e6a29119e.exe
  • Size 1.0MB
  • Sample220107-jtvj1acdel
  • SHA256 8754fc94bb3b8faf216ba5698be5f210dbd66869fc295fcf362cd691c483be18
  • MD5 SHA1 SHA512
Score
10/10
arkeidiscoveryspywarestealer

Malware Config

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

    stealerarkei
  • Arkei Stealer Payload 2 IoCs
    stealer
  • Downloads MZ/PE file
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • 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 NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03e7e9ead519d5a86a03306e6a29119e.exe
    "C:\Users\Admin\AppData\Local\Temp\03e7e9ead519d5a86a03306e6a29119e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3824
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\03e7e9ead519d5a86a03306e6a29119e.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4000
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1828

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3824-115-0x0000000001280000-0x0000000001375000-memory.dmp
        Download

        memory/3824-116-0x0000000001280000-0x0000000001375000-memory.dmp
        Download

        memory/3824-117-0x00000000009F0000-0x00000000009F1000-memory.dmp
        Download

        memory/3824-118-0x0000000001280000-0x0000000001375000-memory.dmp
        Download

        memory/3824-119-0x0000000074880000-0x0000000074A42000-memory.dmp
        Download

        memory/3824-120-0x0000000001220000-0x0000000001266000-memory.dmp
        Download