Analysis

  • max time kernel
    142s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 02:27

General

  • Target

    8e1168d2a5b92eecae7005aaff5ed4dde8c6cabc09924c3f14665c4242350ef8.exe

  • Size

    616KB

  • MD5

    60e2a19ea1cc79ea2f638338300b13ce

  • SHA1

    d636c535ad6d6c61e3b45c0b1a7b6463fd56721e

  • SHA256

    8e1168d2a5b92eecae7005aaff5ed4dde8c6cabc09924c3f14665c4242350ef8

  • SHA512

    de0961e003cb4cb29cd5aa571d8b17e15cddabd21a387a19ea69689fb719aec9fc227b6d4a0f2b8580e6ce04c2badd749c5427e0aa49f9c492ae0e0f37f38cd5

  • SSDEEP

    12288:Swa5WI/FrAT5/GrSJ30GxTZ1iZJ4eCFjBnr8H+28qC9AG:SQer6/x10G0ZChJhAH8qC1

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.yurel.com.tr
  • Port:
    587
  • Username:
    import@yurel.com.tr
  • Password:
    ;9RuYcVv2lyB

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.yurel.com.tr
  • Port:
    587
  • Username:
    import@yurel.com.tr
  • Password:
    ;9RuYcVv2lyB
  • Email To:
    dnlchns@proton.me

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e1168d2a5b92eecae7005aaff5ed4dde8c6cabc09924c3f14665c4242350ef8.exe
    "C:\Users\Admin\AppData\Local\Temp\8e1168d2a5b92eecae7005aaff5ed4dde8c6cabc09924c3f14665c4242350ef8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Users\Admin\AppData\Local\Temp\8e1168d2a5b92eecae7005aaff5ed4dde8c6cabc09924c3f14665c4242350ef8.exe
      "C:\Users\Admin\AppData\Local\Temp\8e1168d2a5b92eecae7005aaff5ed4dde8c6cabc09924c3f14665c4242350ef8.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3164
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3704 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:624

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3012-8-0x0000000005840000-0x00000000058C4000-memory.dmp
      Filesize

      528KB

    • memory/3012-2-0x00000000050C0000-0x0000000005664000-memory.dmp
      Filesize

      5.6MB

    • memory/3012-9-0x0000000007DF0000-0x0000000007E8C000-memory.dmp
      Filesize

      624KB

    • memory/3012-0-0x0000000074DD0000-0x0000000075580000-memory.dmp
      Filesize

      7.7MB

    • memory/3012-4-0x0000000004BA0000-0x0000000004BB0000-memory.dmp
      Filesize

      64KB

    • memory/3012-5-0x0000000004BB0000-0x0000000004BBA000-memory.dmp
      Filesize

      40KB

    • memory/3012-6-0x0000000004B90000-0x0000000004BA2000-memory.dmp
      Filesize

      72KB

    • memory/3012-7-0x0000000004BC0000-0x0000000004BCC000-memory.dmp
      Filesize

      48KB

    • memory/3012-13-0x0000000074DD0000-0x0000000075580000-memory.dmp
      Filesize

      7.7MB

    • memory/3012-1-0x0000000000100000-0x00000000001A0000-memory.dmp
      Filesize

      640KB

    • memory/3012-3-0x0000000004BF0000-0x0000000004C82000-memory.dmp
      Filesize

      584KB

    • memory/3164-12-0x0000000074DD0000-0x0000000075580000-memory.dmp
      Filesize

      7.7MB

    • memory/3164-18-0x0000000005730000-0x0000000005740000-memory.dmp
      Filesize

      64KB

    • memory/3164-15-0x00000000055E0000-0x0000000005646000-memory.dmp
      Filesize

      408KB

    • memory/3164-14-0x0000000005730000-0x0000000005740000-memory.dmp
      Filesize

      64KB

    • memory/3164-16-0x0000000006D10000-0x0000000006D60000-memory.dmp
      Filesize

      320KB

    • memory/3164-17-0x0000000074DD0000-0x0000000075580000-memory.dmp
      Filesize

      7.7MB

    • memory/3164-10-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB