Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7f02ac6f02636f2…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 12:10:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c14a46a64e753683ceae8e1d4b0cc733 SHA-1: a948df63835fc5c1d5a17613c639ed8fb93e1ab2 SHA-256: d7f02ac6f02636f2630df5dd2b3153c917decb0335f2367eafb0a09a2bb6acd6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and generators, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and the presence of these lures indicates an attempt to trick users into visiting potentially harmful sites. No scripts were extracted, but the document's structure and embedded links suggest it's part of a phishing campaign.

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.tw/app/479516143/free-minecraft-hosting-24-7-game-hack PDF link annotation
    • http://lib3tell.stptrisakti.net/repository/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/free-robux-master_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/apocalypes-rising-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/pubg-uc-free-in-pakistan_GM1330123889.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/how-to-get-tiktok-free-fans_GM835599320.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/free-coin-spin_GM406889139.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_off0000321c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x321C 22116 bytes
SHA-256: 4106efbe7a109b94d706e8ddf03528e5b6dd4cd2eb686ae70576efd1b30894db
font_01_sfnt_off0000628d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628D 18240 bytes
SHA-256: a1d0dda2a20c23c2f6b5d38f821eb00881ee16adc5cb924d70fa236c90a36e37

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