Analysis

  • max time kernel
    122s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    21-10-2021 20:58

General

  • Target

    Payment Copy.exe

  • Size

    504KB

  • MD5

    76b7a306c697aab9e1a5a152094c9b00

  • SHA1

    caf45c939526b48b6d822fc6bec1a4bf8a62a677

  • SHA256

    7e0eddc6744c2acde5fcc3a9dc3f6f1e7e1c1b85a1033ae93a0fd53489c71c4f

  • SHA512

    f8eb408f40fa5e10e57448a1913d0bd027c4404b83eff75f06057eae6fcb2e8bf0576447218e2ec504936c249be6f97030a5fb3f09238a5998bf0775b7d90955

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.croatiahunt.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    VilaVrgade852

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3744
    • C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
      2⤵
        PID:2840
      • C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
        "C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3312

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      MD5

      0c2899d7c6746f42d5bbe088c777f94c

      SHA1

      622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

      SHA256

      5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

      SHA512

      ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

    • memory/3312-124-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/3312-133-0x0000000006520000-0x0000000006521000-memory.dmp

      Filesize

      4KB

    • memory/3312-132-0x0000000005C50000-0x0000000005C51000-memory.dmp

      Filesize

      4KB

    • memory/3312-131-0x00000000057C0000-0x0000000005CBE000-memory.dmp

      Filesize

      5.0MB

    • memory/3312-125-0x000000000043766E-mapping.dmp

    • memory/3744-119-0x0000000004F50000-0x0000000004F51000-memory.dmp

      Filesize

      4KB

    • memory/3744-123-0x0000000005DA0000-0x0000000005DF8000-memory.dmp

      Filesize

      352KB

    • memory/3744-122-0x0000000005D00000-0x0000000005D01000-memory.dmp

      Filesize

      4KB

    • memory/3744-121-0x0000000005060000-0x000000000555E000-memory.dmp

      Filesize

      5.0MB

    • memory/3744-120-0x0000000005120000-0x0000000005127000-memory.dmp

      Filesize

      28KB

    • memory/3744-115-0x00000000006A0000-0x00000000006A1000-memory.dmp

      Filesize

      4KB

    • memory/3744-118-0x0000000004F80000-0x0000000004F81000-memory.dmp

      Filesize

      4KB

    • memory/3744-117-0x0000000005560000-0x0000000005561000-memory.dmp

      Filesize

      4KB