Analysis

  • max time kernel
    114s
  • max time network
    133s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    07-07-2020 09:09

General

  • Target

    RFQ NO#772020_pdf.scr

  • Size

    868KB

  • MD5

    c998ca0af99e7849f3d3e869dbf7e6b8

  • SHA1

    77fd85e5e95c08c5c2c0e9385c684e71aeddbeae

  • SHA256

    56eede61d2d4522f0364d57abe131f1067498d3a7df2cf341dffb7993c662b3a

  • SHA512

    463048f373a31a74afac83ba59d152b43d626ae9e7d79c68637901313452dd58d2516fb26cf9e3986e7c7589af418b8779ab4edb0ab36ee864811b5c3a78d3d0

Malware Config

Signatures

  • AgentTesla

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

  • 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.

  • 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 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ NO#772020_pdf.scr
    "C:\Users\Admin\AppData\Local\Temp\RFQ NO#772020_pdf.scr" /S
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IYJaUsaI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9F14.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3748

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9F14.tmp

    MD5

    bdd868966cb7fbe798b9eef1830cf3a9

    SHA1

    aa44a4697f6cb47d310aa170e7139b230097318c

    SHA256

    0e7f90912544fb65e0e2dd65fecac48c8d11667a942071a0cb78fbbee5c6f213

    SHA512

    ecd70aceabc9ee053713f29943c1d1576225513f495a9c104dd757bf186f4dad1a79f8b8f8684520d94b616c32c0853af2ea096945558661c85675875e07d022

  • memory/3748-0-0x0000000000000000-mapping.dmp