Malicious PDF — malware analysis report

Static analysis result for SHA-256 22e3f270fc8fd410…

MALICIOUS

PDF

33.1 KB Created: 2021-07-07 10:09:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8b76497a5fa8b551092d97e25c768c79 SHA-1: 23177f61793e9072460f4f68d018ca17987f27b9 SHA-256: 22e3f270fc8fd4102881a441cb00b52b97db3dd1441d18b9d27a4411e23d73d9
94 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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 http://netcdn.tw/app/406889139/free-hacks-for-coin-master-game-hack PDF link annotation
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-free-spins-5-10-2021_GM406889139.pdfPDF link annotation
    • http://45.115.65.99/__statics/gudangsoal/files/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/robux-hack-no-questions_GM431946152.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/free-kakashi-outfit-roblox_GM431946152.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/free-robux-please_GM431946152.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/why-wont-cheat-engine-work-on-roblox_GM431946152.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/robux-for-offers_GM431946152.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/free-spin-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-free_GM406889139.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/robux-download_GM431946152.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/how-to-hack-pick-a-side-roblox_GM431946152.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://45.115.65.99/__statics/gudangsoal/files/free-spins-coin-master-hack-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_002_off00003159.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3159 22796 bytes
SHA-256: d58712a78640b0be7634fdf2eb0bc361982361e1ffe59e8af0db537d44bbd831
font_01_sfnt_off00006470.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6470 18168 bytes
SHA-256: 1e436942c22cf5f1ddb993b5625de9063034e514cb54256dfb31bec93a9ee0e1

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