Malicious PDF — malware analysis report

Static analysis result for SHA-256 165601f4882320dc…

MALICIOUS

PDF

40.4 KB Created: 2021-05-14 15:41:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 01a6e488b8d9e2e1424898d3f1146086 SHA-1: 4ea69d572e6f9bc979c0d3846e499a6e2693c18a SHA-256: 165601f4882320dc0da6781c7050c0a5d1a9a9ebcf52dd5a55ae63f6f91782a8
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/coin-master-pc-hack-game-hack PDF link annotation
    • http://promotion.si/images/coin-master-hack-apk-no-survey_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/coin-master-free-spins-daily-1-ga_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/spin-link_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/free-spins-on-coin-master_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_off000046d3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46D3 24144 bytes
SHA-256: 3b25489ab4b4a7fc7f493356e408ecfecbc5b0dd4eecaff4fbc44a2b51425307
font_01_sfnt_off00007cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC5 17868 bytes
SHA-256: 2afdedecde820afe22901ca35ab1de7d9bd06462c55bbc4b8ddd703c94e78653

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