Analysis

  • max time kernel
    117s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    09-07-2020 08:38

General

  • Target

    RFQ_Section_III_Returnable Bidding Forms - IUS-UWS-SAN -0112.exe

  • Size

    515KB

  • MD5

    b338d235f56a4e4d560dc5984531d02e

  • SHA1

    a12ce76f69be3397ac2636e3e2b06fd82715bf2e

  • SHA256

    c13a9fe750e9c765f6e9b8d5ac7de574ee533743261bd070c32054cd197bdf41

  • SHA512

    1673aba3e1921f93f9066803143ad32257b5942209040c95ef8b0705a9e2aec7f64f3bd47d5f933f014b128ee51c0b63a2a30c9ec6e5a3e8583913ba89fdd98d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chukwudi123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ_Section_III_Returnable Bidding Forms - IUS-UWS-SAN -0112.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ_Section_III_Returnable Bidding Forms - IUS-UWS-SAN -0112.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Users\Admin\AppData\Local\Temp\RFQ_Section_III_Returnable Bidding Forms - IUS-UWS-SAN -0112.exe
      "{path}"
      2⤵
        PID:336
      • C:\Users\Admin\AppData\Local\Temp\RFQ_Section_III_Returnable Bidding Forms - IUS-UWS-SAN -0112.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:736

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/736-2-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/736-3-0x0000000000449E3E-mapping.dmp

    • memory/736-4-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/736-5-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/1464-1-0x0000000000000000-0x0000000000000000-disk.dmp