Malicious PDF — malware analysis report

Static analysis result for SHA-256 120e8b481f946c6f…

MALICIOUS

PDF

45.0 KB Created: 2021-06-03 12:47:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 3012955f58475037cfaa81dfbd4e2d5e SHA-1: d650d9449b898865a8fc998e9e3affe591a6968f SHA-256: 120e8b481f946c6f4c9e83691848497387ec0f00fdd739b9e0a4596afe75a6e0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/431946152/free-robux-on-phone-game-hack PDF link annotation
    • http://www.perpus.stfm.ac.id/repository/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-spin-daily-bonus_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/pokemon-go-free-dragonite_GM1094591345.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/tiktok-free-jeton_GM835599320.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-gift-card-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
stream_004_off00005191.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5191 25616 bytes
SHA-256: f34794abf50cbf8da1d2fbd6f8f48521dd4678001257b28a4c1e9b94b5de8f16
font_01_sfnt_off00008d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6F 18332 bytes
SHA-256: a8c9403bd24fc6ffbb74b72c8864e8746fc5e9ab0f3a7e731dec7195ce2a3638

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