Analysis

  • max time kernel
    134s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/05/2024, 14:06

General

  • Target

    SWF0550.exe

  • Size

    668KB

  • MD5

    7e23d3e78d1785fee81947b0f3785074

  • SHA1

    bc7c31eb0b915a373627e0b53d30d2c9ba01ea47

  • SHA256

    e3b946919fbd0a093a79bc59072379151391a6f4fef88aa86d56a3af7e82a51e

  • SHA512

    745b091d8bbdc29dfb949c74b02abd1e6555f9444bc77dd1e8f7f0f2fa03aa151414d873768bdbd6db64817b6adfb2cfaa9d23cd3cd0466830a2c7037c7cc1d8

  • SSDEEP

    12288:GPCCVS8VB57yc5QztiX7taQj+EWrUf0b4PKTYBtnbmcyqmsgU:Gf5BZyyUtuaef0byEmmRs5

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    aYl@txL3

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SWF0550.exe
    "C:\Users\Admin\AppData\Local\Temp\SWF0550.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3980
    • C:\Users\Admin\AppData\Local\Temp\SWF0550.exe
      "C:\Users\Admin\AppData\Local\Temp\SWF0550.exe"
      2⤵
        PID:1448
      • C:\Users\Admin\AppData\Local\Temp\SWF0550.exe
        "C:\Users\Admin\AppData\Local\Temp\SWF0550.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2204
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=1748,i,4686244434963378549,11462511444150484980,262144 --variations-seed-version --mojo-platform-channel-handle=4148 /prefetch:8
      1⤵
        PID:4108

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SWF0550.exe.log

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      • memory/2204-11-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2204-19-0x0000000074F90000-0x0000000075740000-memory.dmp

        Filesize

        7.7MB

      • memory/2204-18-0x0000000006380000-0x00000000063D0000-memory.dmp

        Filesize

        320KB

      • memory/2204-17-0x0000000005440000-0x00000000054A6000-memory.dmp

        Filesize

        408KB

      • memory/2204-16-0x0000000074F90000-0x0000000075740000-memory.dmp

        Filesize

        7.7MB

      • memory/2204-14-0x0000000074F90000-0x0000000075740000-memory.dmp

        Filesize

        7.7MB

      • memory/3980-4-0x0000000074F90000-0x0000000075740000-memory.dmp

        Filesize

        7.7MB

      • memory/3980-8-0x0000000005D00000-0x0000000005D10000-memory.dmp

        Filesize

        64KB

      • memory/3980-9-0x0000000005D70000-0x0000000005DF2000-memory.dmp

        Filesize

        520KB

      • memory/3980-10-0x0000000008510000-0x00000000085AC000-memory.dmp

        Filesize

        624KB

      • memory/3980-7-0x0000000005CF0000-0x0000000005CFC000-memory.dmp

        Filesize

        48KB

      • memory/3980-6-0x0000000004D50000-0x0000000004D66000-memory.dmp

        Filesize

        88KB

      • memory/3980-5-0x0000000004C90000-0x0000000004C9A000-memory.dmp

        Filesize

        40KB

      • memory/3980-15-0x0000000074F90000-0x0000000075740000-memory.dmp

        Filesize

        7.7MB

      • memory/3980-0-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

        Filesize

        4KB

      • memory/3980-3-0x0000000004AD0000-0x0000000004B62000-memory.dmp

        Filesize

        584KB

      • memory/3980-2-0x0000000005130000-0x00000000056D4000-memory.dmp

        Filesize

        5.6MB

      • memory/3980-1-0x0000000000050000-0x00000000000FC000-memory.dmp

        Filesize

        688KB