Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe9e4a8846d7d5d2…

MALICIOUS

PDF

43.0 KB Created: 2021-05-13 04:00:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: cd0a64ee22105885542e978d38d63946 SHA-1: 571ef2aa0a90c91a8b36d77142c334a77cd79751 SHA-256: fe9e4a8846d7d5d271e68b4fe782ee0d2cd31185f2dd337b55db136f414dafc6
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, masquerading as a "Minecraft Handbook" to trick users into clicking malicious links. It contains a large number of links to other PDF documents, likely part of a link farm or SEO manipulation scheme, and a primary redirector URL that leads to game hack content. The document's structure and embedded links strongly suggest a phishing or scamming attempt, likely using a spearphishing attachment vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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
  • 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/479516143/minecraft-handbook-game-hack In PDF document text
    • http://behsanroshd.com/images/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/daily-coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/60-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-coin-master-spins-for-today_GM406889139.pdfIn 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_003_off00004c09.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C09 25204 bytes
SHA-256: 11984ee1c3a06f0a10704321e8b48b31edbad8e71aed4aafeb4c37575967db71
font_01_sfnt_off000085da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85DA 18212 bytes
SHA-256: 1a627f895fd71f0db6204a4e6c898bcc91a8697ac5cc959001a8208a768574ba

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