Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d0c3d45d0236726…

MALICIOUS

PDF

33.7 KB Created: 2021-06-26 04:23:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d22de1e8ce5dd5f1fc113903c98f82ed SHA-1: 42c7bb59c8702e794d8bbd2ea73d3602f81ad4f2 SHA-256: 3d0c3d45d02367260df78fd393d87775befac6ba6eb82a21e69eddc9b1cc7a33
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector, designed to lure users into downloading potentially unwanted or malicious software disguised as game hacks or free currency generators. The document body and heuristic firings indicate a social engineering tactic to trick users into visiting these links. No scripts were extracted, but the primary attack vector appears to be the embedded malicious URLs.

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-noclip-download-hack-game-hack In PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-spin-link_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/how-get-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-roblox-clothes-codes-2021_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/robux-free-com_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/robuxe-gratuit-site-de-hack-roblox_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/cheat-buddy-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/robux-codes_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/how-to-hack-roblox-2021-august_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/granny-roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-roblox-wp-themes_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-robux-promo-codes-2021_GM431946152.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_off00002e46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E46 21656 bytes
SHA-256: 3d18a2cc9d0677f41a35d2c39b76272a1e4c530603dbe30031bb874499016511
font_01_sfnt_off00005d6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D6B 19456 bytes
SHA-256: 5490cfa1d290e1dff528c114a12c31a3e644220497aba4c7b382bf4cdadf9895

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