Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f2b5b843ca9be9b…

MALICIOUS

PDF

33.9 KB Created: 2021-06-26 04:58:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 47df697b62de4f640c80887999bdfa2e SHA-1: 69e7a105e281dd1666594391590676fdef1f8417 SHA-256: 6f2b5b843ca9be9b12ceff496791e78d3d9d8a6d02da40c06cc3b826d410a12e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links, including one to a known malicious redirector at http://netcdn.co/app/431946152/roblox-card-codes-hack-game-hack. The document body and heuristics indicate a lure for game-related cheats or currency, designed to trick users into visiting malicious sites. No scripts were extracted, but the embedded URLs and redirector findings strongly suggest a phishing or scam campaign.

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-card-codes-hack-game-hack In PDF document text
    • https://opac.umrah.ac.id/repository/free-game-unlock-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/app-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-ghost-simulator-in-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-robux-on-a-samsung-phone_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-hack-without-verify_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-money-in-bloxburg-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-how-to-pass-human-verify_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/unredeemed-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/tiktok-free-download_GM835599320.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/hack-master-coin_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_off00002deb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DEB 22512 bytes
SHA-256: 82d28d6ac55b0d6aeeb5bf419b40c54c72025326e9abfb6dc9f462e60861113b
font_01_sfnt_off00005ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF3 18828 bytes
SHA-256: b3d03aa81123adbd29b70525f0dab811885d84a17f0f55c9e546745617cbfb42

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