Analysis

  • max time kernel
    46s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    10-02-2023 08:55

General

  • Target

    ZAMÓWIENIE_DR-5-33499_pdf.exe

  • Size

    16KB

  • MD5

    de19e80d4eb300de7498fd561a9b7e02

  • SHA1

    d8abc5d5e011a5e27462d26e1a04e824a2c6c6ef

  • SHA256

    c5cb02082fc5df46b664578c2e049882a10fbd6be805ed345f8699e109fa8d1d

  • SHA512

    90b7da873e409602321bac44627db55cd3e35dce6374de5514697127734060527776153d59b28abffd2852545ce829dc2b4deff92508c1456016106d3973ed9b

  • SSDEEP

    96:kyH1vt86ZcAP9G/15ugGkXRVsAmdEL0dkLUdEL0d6Ddhk8v1/zNt:k8/5Pw/15LrX0Ami4CYi4Mn

Malware Config

Extracted

Family

purecrypter

C2

http://45.84.1.117/3477/Ptstngx.bmp

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5846767138:AAHbrIUF1epdWlFQ2_64LCd8vdF121y1XGE/

Signatures

  • AgentTesla

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

  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ZAMÓWIENIE_DR-5-33499_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\ZAMÓWIENIE_DR-5-33499_pdf.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:1652
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1136

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1136-60-0x000000006E350000-0x000000006E8FB000-memory.dmp

    Filesize

    5.7MB

  • memory/1136-61-0x000000006E350000-0x000000006E8FB000-memory.dmp

    Filesize

    5.7MB

  • memory/1136-62-0x000000006E350000-0x000000006E8FB000-memory.dmp

    Filesize

    5.7MB

  • memory/1652-54-0x0000000000920000-0x000000000092A000-memory.dmp

    Filesize

    40KB

  • memory/1652-55-0x00000000757A1000-0x00000000757A3000-memory.dmp

    Filesize

    8KB

  • memory/1652-56-0x0000000005F30000-0x0000000005FE4000-memory.dmp

    Filesize

    720KB

  • memory/1652-57-0x00000000004D0000-0x00000000004EA000-memory.dmp

    Filesize

    104KB

  • memory/1652-63-0x00000000046C0000-0x00000000046F0000-memory.dmp

    Filesize

    192KB