Analysis

  • max time kernel
    61s
  • max time network
    14s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 19:36

General

  • Target

    REQUEST FOR QUOTATION MV PAVINO TRADER.exe

  • Size

    466KB

  • MD5

    714533814adecf2a707d8292647e4cd7

  • SHA1

    8916de8ce4af1ff7411edaaa446c50e2e537ca84

  • SHA256

    16a372b8bf67ed98f8065274e22b1c36ad0b0a6fbd8a8a4a4afb0e9b07665612

  • SHA512

    68d260f432d53b8208fd8bc18a7b24f7b8898fcf158406d4b8c5b7762a91ed12879749524bba6ddd1f5daf8ded5c69d643e95a9ce35ce1871f4319ef77eb485d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    info.pana@yandex.com
  • Password:
    user@12345

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION MV PAVINO TRADER.exe
    "C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION MV PAVINO TRADER.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zYnKKz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1164
    • C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION MV PAVINO TRADER.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1420
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1632

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpAE9.tmp
      MD5

      f9b140b8214bded65b168ecb95184e62

      SHA1

      2139ee08640558093596248b27a2ec149e11f9c6

      SHA256

      e4d60782d9391f6eb267a742b846e8536d3b8005bc5f41e4cac6cd2913b9f3e2

      SHA512

      cfe262085f06c3eed4fb908ac6027c3aa0caf8cf60e9caa993c0680c69f32fddc66dd5f7a8fcfdc80a3146b7a3a1cfa4f98155bc51f1cf6782c24ae6575f8f91

    • memory/1164-5-0x0000000000000000-mapping.dmp
    • memory/1420-10-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/1420-7-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/1420-8-0x000000000044C7DE-mapping.dmp
    • memory/1420-9-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/1420-11-0x0000000073D40000-0x000000007442E000-memory.dmp
      Filesize

      6.9MB

    • memory/1632-17-0x0000000000000000-mapping.dmp
    • memory/1756-4-0x0000000000CB0000-0x0000000000D03000-memory.dmp
      Filesize

      332KB

    • memory/1756-3-0x0000000000540000-0x0000000000543000-memory.dmp
      Filesize

      12KB

    • memory/1756-1-0x0000000001300000-0x0000000001301000-memory.dmp
      Filesize

      4KB

    • memory/1756-0-0x0000000073D40000-0x000000007442E000-memory.dmp
      Filesize

      6.9MB

    • memory/1756-13-0x0000000000910000-0x0000000000940000-memory.dmp
      Filesize

      192KB