Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d2f31aa5ee3720…

MALICIOUS

PDF

46.5 KB Created: 2021-06-07 08:23:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ee4155e2b28d54a9973bc3078ece6ba1 SHA-1: ab7489ac8aae2d8e342c4367582f6fdc70c862e8 SHA-256: f2d2f31aa5ee37201c8a9a75126f9b378462c1c08ca7fd0887369090566ef62d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, masquerading as game hacks and generators. The primary lure, 'free-advertising-on-roblox-game-hack', directs to a suspicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URIs strongly suggest a phishing or scam attempt, likely leading to further malicious downloads or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.tw/app/431946152/free-advertising-on-roblox-game-hack PDF link annotation
    • http://digilib.akperkabpurworejo.ac.id/repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/play-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-robux-master_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/when-was-minecraft-free_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coinmasterfree_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-com_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000055ea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x55EA 26612 bytes
SHA-256: e25dffba93977b94e5bf1b542693af0a5449df2b7abd382a6139d7624e9e1959
font_01_sfnt_off000091b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91B6 18748 bytes
SHA-256: eb1bba28ce577f0742775c69e33a170c88a65541484eab1a7c2f3ec89922b60c

Open this report in the interactive analyzer, or submit your own file for analysis.