Malicious PDF — malware analysis report

Static analysis result for SHA-256 d22d7726e57212ae…

MALICIOUS

PDF

44.1 KB Created: 2021-06-11 10:28:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ebc34fd42eb2c0f876b88fd71b305235 SHA-1: a2f29f67bc43a463a9d43c19b10a1b40f2ece2f7 SHA-256: d22d7726e57212aef1821affbe2f5f851ecac42d3a08a0fb303b3860e4abb8f6
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to lure users into clicking on what appear to be game hacks or free generators. The primary link redirects to a malicious website, indicating a phishing or scam attempt. The document's structure and embedded links suggest it is part of a link farm intended to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.tw/app/479516143/can-you-play-minecraft-for-free-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id//repository/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-generator-that-works_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.youtIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050df.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50DF 25496 bytes
SHA-256: be0724c9a11eead3157ddff124f9ff41154465a081ba9df74d74c856ef7bbee1
font_01_sfnt_off00008972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8972 18420 bytes
SHA-256: 81bede04d90c080fa29d20db124f1531358f39ee91ce610139dedd08dc3401fc