Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db79152665bf85b…

MALICIOUS

PDF

33.8 KB Created: 2021-06-20 13:00:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3eb4471450566bc5cced909f77c257c4 SHA-1: 02c364cd7c2b15cf660fd845eb546525ad7e02b9 SHA-256: 7db79152665bf85b81fd9c999f1c53f299ec0df7f54322d008c4d54045482fbe
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for free game hacks and directs users to a malicious redirector URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-adidas-free-game-hack In PDF document text
    • http://library.imz.or.id/repository/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/tiktok-free-6-months_GM835599320.pdfIn PDF document text
    • http://library.imz.or.id/repository/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/can-any-codes-give-u-free-robux-2021-working_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/rbx-hut_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/best-free-robux-websites_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-spin-link-in-coin-master-game_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0A 22432 bytes
SHA-256: 792ae3d593dffbc5d95e99fd9963ad71b677425e380bc58f6f113317a5da4b83
font_01_sfnt_off00005f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3B 18944 bytes
SHA-256: 7d348486530badd8968d2d4bcbf80ffce46f787b4c8f0cfce1b9d635d829a33b

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