Malicious PDF — malware analysis report

Static analysis result for SHA-256 db0702d2b57aa2b2…

MALICIOUS

PDF

41.4 KB Created: 2021-05-12 23:00:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: a4d84869fb3e82bfb3e0ade3a3d80710 SHA-1: e008d02b3ded5f1526a08f0e0bd4df40ea692f1d SHA-256: db0702d2b57aa2b28355f9e04a9c74034c65f81c0e478ab86d1ae8777e58dc31
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game-related cheats and currency, with a primary link identified as a known malicious redirector. The document body and embedded URLs strongly suggest a lure for users seeking in-game advantages, which is a common social engineering tactic. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.xyz/app/406889139/coin-master-free-spins-and-coins-group-game-hack In PDF document text
    • http://ordineavvocatitempio.it/images/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/freespinandcoin_GM406889139.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/how-do-you-get-robux-on-roblox_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_off00004a10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A10 24312 bytes
SHA-256: fbeaaaae247d082fe76b2e584ea56d0808806ea3205a053615ed06cc4ed6a346
font_01_sfnt_off00007f98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F98 18200 bytes
SHA-256: 54fd5b3cea3424e44b8aa3e0b36c372e6f6c7ec27c44e60f8f157f6f0e83aa54

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