Malicious PDF — malware analysis report

Static analysis result for SHA-256 876c1b3b4aae1fe1…

MALICIOUS

PDF

33.2 KB Created: 2021-06-18 11:45:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fffb10c0d6e312b10d85ef6eb723ad45 SHA-1: 78eb3a13302fb50feb43d631df0a6aeb79694aef SHA-256: 876c1b3b4aae1fe12aeebdecf5efca9eb1b63a963da00738bc6d0077062b8ec0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple embedded URLs that are designed to lure users into clicking on links promising game hacks and free currency for popular games like Roblox. The heuristic firings strongly indicate a malicious redirector and a game hack lure. The document body and extracted URLs suggest the primary goal is to drive traffic to potentially malicious websites that may host further malware or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-booga-booga-noob-vs-pro-vs-hacker-game-hack PDF link annotation
    • http://library.stiks-tarakanita.ac.id/repository/hack-robux_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/rbxi-club-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/coin-spin-link_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/free-tiktok-accounts_GM835599320.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/robux-hack_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/hack-one-piece-millenium-roblox_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/how-to-hack-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/cheat-files-roblox_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/free-robux-app-real_GM431946152.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
font_00_sfnt_off00002dff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DFF 21408 bytes
SHA-256: 0dab2fe719ddff0157855c644192482e05bde22e906fdf86f62d27e83cec54dd
font_01_sfnt_off00005cfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFE 18944 bytes
SHA-256: 45e92972f820b7af6392bdb985045ac26a922484f12f4be53b2850687bfc1ec3

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