Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b083e38737c382d…

MALICIOUS

PDF

41.4 KB Created: 2021-05-12 13:34:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 925261fb7704309541510ea1c907afea SHA-1: 4addfb11a57fc6357e8cc35fff4d8f6f63c519cd SHA-256: 1b083e38737c382d4da6453a03e93dc95640d44475394bf20307e5bc6184c375
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 0.9971

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/406889139/how-to-gain-more-spins-on-coin-master-for-free-game-hack PDF link annotation
    • http://tecnodue.com/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://tecnodue.com/images/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://tecnodue.com/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tecnodue.com/images/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://tecnodue.com/images/coinmasterfree_GM406889139.pdfIn PDF document text
    • http://tecnodue.com/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://tecnodue.com/images/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://tecnodue.com/images/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://tecnodue.com/images/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://tecnodue.com/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://tecnodue.com/images/what-is-coin-master_GM406889139.pdfIn PDF document text
    • http://tecnodue.com/images/free-robux-games_GM431946152.pdfIn PDF document text
    • http://tecnodue.com/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://tecnodue.com/images/coin-spin_GM406889139.pdfIn PDF document text
    • http://tecnodue.com/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://tecnodue.com/images/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://tecnodue.com/images/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
    • http://tecnodue.com/images/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://tecnodue.com/images/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
    • http://tecnodue.com/images/coin-master-hack-without-human-verification-2021_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_003_off00004912.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4912 24080 bytes
SHA-256: e7515052dbfa2d780e776da5b72fcf723c9b5613bbf7315bc59ce8eea42056eb
font_01_sfnt_off0000802c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x802C 18052 bytes
SHA-256: 2b6154c27660532d98da4aa74bd690eac4d1a1d381f6590d3335daf198931aa6

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