Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/07/2023, 06:41

General

  • Target

    Fatura n. 24.exe

  • Size

    602KB

  • MD5

    764fe6da2d63d33c57105a7f193de2fe

  • SHA1

    c434951ca63e276b09aa1898575144b3f449939d

  • SHA256

    221d2dd6e3f557fc5706b3fc70b7412993265406831e7816d0732cd3087c023d

  • SHA512

    05ff5a4a10db9e4885b18053bf263833bbceceffe3da6697b3805e1a51eda6dea8b8744fd5ef5b4d89c2d527ec0a304f3a89e09906f8a56814aacc6aa3ce7c2f

  • SSDEEP

    12288:IDp8J0xn/G06CmodxPBJNdUMIP3BxUrDhH6wS4ASI3nevf:lJ0xeUZPNWbUrNH84rff

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.mutuadebasto.pt
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mutua_Fernando123

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 2 IoCs
  • 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
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious behavior: RenamesItself 1 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\Fatura n. 24.exe
    "C:\Users\Admin\AppData\Local\Temp\Fatura n. 24.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1216
    • C:\Users\Admin\AppData\Local\Temp\Fatura n. 24.exe
      "C:\Users\Admin\AppData\Local\Temp\Fatura n. 24.exe"
      2⤵
        PID:4348
      • C:\Users\Admin\AppData\Local\Temp\Fatura n. 24.exe
        "C:\Users\Admin\AppData\Local\Temp\Fatura n. 24.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3484

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Fatura n. 24.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/1216-141-0x0000000008EB0000-0x0000000008F4C000-memory.dmp

      Filesize

      624KB

    • memory/1216-134-0x0000000074F70000-0x0000000075720000-memory.dmp

      Filesize

      7.7MB

    • memory/1216-136-0x0000000005180000-0x0000000005212000-memory.dmp

      Filesize

      584KB

    • memory/1216-137-0x00000000052C0000-0x00000000052D0000-memory.dmp

      Filesize

      64KB

    • memory/1216-138-0x00000000050F0000-0x00000000050FA000-memory.dmp

      Filesize

      40KB

    • memory/1216-139-0x0000000074F70000-0x0000000075720000-memory.dmp

      Filesize

      7.7MB

    • memory/1216-135-0x0000000005690000-0x0000000005C34000-memory.dmp

      Filesize

      5.6MB

    • memory/1216-140-0x00000000052C0000-0x00000000052D0000-memory.dmp

      Filesize

      64KB

    • memory/1216-147-0x0000000074F70000-0x0000000075720000-memory.dmp

      Filesize

      7.7MB

    • memory/1216-133-0x00000000007D0000-0x000000000086C000-memory.dmp

      Filesize

      624KB

    • memory/3484-145-0x0000000074F70000-0x0000000075720000-memory.dmp

      Filesize

      7.7MB

    • memory/3484-142-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/3484-146-0x0000000005240000-0x0000000005250000-memory.dmp

      Filesize

      64KB

    • memory/3484-148-0x0000000006460000-0x0000000006622000-memory.dmp

      Filesize

      1.8MB

    • memory/3484-149-0x0000000074F70000-0x0000000075720000-memory.dmp

      Filesize

      7.7MB

    • memory/3484-150-0x0000000005240000-0x0000000005250000-memory.dmp

      Filesize

      64KB