Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ab6c6588f0cec0…

MALICIOUS

PDF

35.2 KB Created: 2021-05-23 23:09:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e8c1db2ab802a864ca8964d7cbc85b82 SHA-1: 18e8ce14dfcc1dd45632fa4428e853b899c69aaa SHA-256: 59ab6c6588f0cec051856b748ccba66749b314cafa50d2c8879728b91491b072
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 0.9508

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.xyz/app/835599320/how-to-get-free-tiktok-followers-without-human-verification-game-hack PDF link annotation
    • https://www.devries-group.de/images/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.devries-group.de/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • https://www.devries-group.de/images/coin-master-hack-mobile_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
stream_002_off00003037.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3037 23900 bytes
SHA-256: 34e4768ae03cc065d592619ade3075f692eaa858b4a9d1d167b7710b7fad2c46
font_01_sfnt_off000066c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66C4 18820 bytes
SHA-256: 79c2bf02bc82707ab9f25b25786afb4a3e11e0d45a314ed7c066e7684dd6d9fe

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