Analysis

  • max time kernel
    140s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 22:19

General

  • Target

    Purchanse_order.exe

  • Size

    772KB

  • MD5

    7d3b4301c9c66c9fdb16dd433cb8caae

  • SHA1

    45788c1bc647a628c3ecf414109ad9702e1e3294

  • SHA256

    b9b823a4a7732af045884bac1c801b2924521291e92157c7e90ed573f1236f54

  • SHA512

    af01c5213d2150531feadf804f80605f6cd5a17bb442d3f3572f27ff861621985ea42fd9c475d502249c0935dfc19bef59f8d3e392e9ae1e90bbbc66e970c274

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.gascuenca.es
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    gasW204@Z7

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.gascuenca.es
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    gasW204@Z7

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchanse_order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchanse_order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2832
    • C:\Users\Admin\AppData\Local\Temp\Purchanse_order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchanse_order.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4836

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchanse_order.exe.log

    Filesize

    1KB

    MD5

    17573558c4e714f606f997e5157afaac

    SHA1

    13e16e9415ceef429aaf124139671ebeca09ed23

    SHA256

    c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

    SHA512

    f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

  • memory/2832-130-0x0000000000880000-0x0000000000948000-memory.dmp

    Filesize

    800KB

  • memory/2832-131-0x00000000052D0000-0x000000000536C000-memory.dmp

    Filesize

    624KB

  • memory/2832-132-0x0000000005920000-0x0000000005EC4000-memory.dmp

    Filesize

    5.6MB

  • memory/2832-133-0x0000000005410000-0x00000000054A2000-memory.dmp

    Filesize

    584KB

  • memory/2832-134-0x0000000005380000-0x000000000538A000-memory.dmp

    Filesize

    40KB

  • memory/2832-135-0x00000000055F0000-0x0000000005646000-memory.dmp

    Filesize

    344KB

  • memory/4836-136-0x0000000000000000-mapping.dmp

  • memory/4836-137-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/4836-139-0x0000000006110000-0x0000000006176000-memory.dmp

    Filesize

    408KB

  • memory/4836-140-0x0000000006690000-0x00000000066E0000-memory.dmp

    Filesize

    320KB