Analysis

  • max time kernel
    142s
  • max time network
    122s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    19-10-2021 07:00

General

  • Target

    Proforma Invoice.pdf.exe

  • Size

    551KB

  • MD5

    4aed86a83d6470edf10d71508c18e3c9

  • SHA1

    871973f1e5c71dc0d7e2b6bcd080be3d58b713f1

  • SHA256

    d83c9b45e97010c3c45988042a6f4e6c6c0945425853fed6f821aa0d28652f68

  • SHA512

    5d55f756f6483c075f2bec2650a8aec221fbe29f45f2425241e4a338c03eca6c01297b08d17da0abb1e2cbb038ac398f893ad25daa7c3e5432afd047830a9713

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.daproviaggi.it
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    vacanz.E43

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
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nFYKtQTxIw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp84DC.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1536
    • C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:64

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/64-134-0x0000000005BF0000-0x0000000005BF1000-memory.dmp

    Filesize

    4KB

  • memory/64-133-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

    Filesize

    4KB

  • memory/64-132-0x0000000004F00000-0x00000000053FE000-memory.dmp

    Filesize

    5.0MB

  • memory/64-126-0x000000000043764E-mapping.dmp

  • memory/64-125-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1536-124-0x0000000000000000-mapping.dmp

  • memory/2196-119-0x00000000074B0000-0x00000000079AE000-memory.dmp

    Filesize

    5.0MB

  • memory/2196-123-0x000000000D4E0000-0x000000000D538000-memory.dmp

    Filesize

    352KB

  • memory/2196-122-0x000000000D440000-0x000000000D441000-memory.dmp

    Filesize

    4KB

  • memory/2196-121-0x0000000007ED0000-0x0000000007ED8000-memory.dmp

    Filesize

    32KB

  • memory/2196-120-0x0000000007500000-0x0000000007501000-memory.dmp

    Filesize

    4KB

  • memory/2196-115-0x0000000000770000-0x0000000000771000-memory.dmp

    Filesize

    4KB

  • memory/2196-118-0x0000000007550000-0x0000000007551000-memory.dmp

    Filesize

    4KB

  • memory/2196-117-0x00000000079B0000-0x00000000079B1000-memory.dmp

    Filesize

    4KB