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Resubmissions

01/02/2023, 10:11

230201-l774csef8s 7

01/02/2023, 10:09

230201-l67q7sef7y 7

31/01/2023, 09:53

230131-lw4xkahf4z 7

Analysis

  • max time kernel
    145s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/02/2023, 10:11

General

  • Target

    unpacked_payload.exe

  • Size

    165KB

  • MD5

    0868d9608bc629bdc8ee88f608ed307b

  • SHA1

    7a3f3a5cd72a46277cd0f6e4e4467b901b7f4238

  • SHA256

    7f0d201d80f3d5c61c6c3c9c49d4bed8a55a2ca377b007cbb3ae59c94a78ac97

  • SHA512

    299476991ef999880bde2f9464f05eb5c05df23bb7baf565c30a1a77f4308d29935b595d8521b5f032ed13634ba04cd3578479e8adc3cbb9177b32f9b609f876

  • SSDEEP

    3072:Hsz57rzTsEIBOnM0rcTEkIAdEIGeUoyjcYejLPI4N:Hsz99rTBmlp/jLw4

Malware Config

Signatures

  • 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
  • Adds Run key to start application 2 TTPs 1 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.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\unpacked_payload.exe
    "C:\Users\Admin\AppData\Local\Temp\unpacked_payload.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • outlook_office_path
    • outlook_win_path
    PID:4948
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2000

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4948-132-0x0000000000D90000-0x0000000000DC0000-memory.dmp

      Filesize

      192KB

    • memory/4948-133-0x0000000005E10000-0x00000000063B4000-memory.dmp

      Filesize

      5.6MB

    • memory/4948-134-0x0000000005780000-0x00000000057E6000-memory.dmp

      Filesize

      408KB

    • memory/4948-135-0x00000000072C0000-0x0000000007352000-memory.dmp

      Filesize

      584KB

    • memory/4948-136-0x00000000074B0000-0x00000000074BA000-memory.dmp

      Filesize

      40KB

    • memory/4948-137-0x0000000007570000-0x00000000075C0000-memory.dmp

      Filesize

      320KB

    • memory/4948-138-0x00000000077D0000-0x0000000007992000-memory.dmp

      Filesize

      1.8MB