Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6fd21088e7b43bc…

MALICIOUS

PDF

33.9 KB Created: 2021-06-29 21:42:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: cadabd2b82f9314931e8496f1fd82c39 SHA-1: ac8f17ef962fa504b4e42f532e50bbf3424bbdd5 SHA-256: d6fd21088e7b43bc87b364a29344ae054a5b51bdaf10785e3c5457ee02e8f297
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to lure users into clicking on them by promising free game currency or accounts. The primary link, http://netcdn.co/app/431946152/how-to-get-free-robux-2021-link-game-hack, is identified as a malicious redirector. The document body and embedded links suggest a scam related to popular online games like Roblox and Coin Master. No scripts were extracted, but the overall structure and embedded links indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-free-robux-2021-link-game-hack In PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-accounts-with-robux-2021-october_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-emotes-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-daily-free-spins-link-today-2021-free_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-for-roblox-cheats-and-guide-download-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-groupe_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-flower-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-jailbreak-hack-no-virus_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-promo-codes-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-hack-strucid-aimbot-undetectable_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-meep-city-plus-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-gen-no-survey_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-groups-that-give-free-robux-2021_GM431946152.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
font_00_sfnt_off00002dac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DAC 21860 bytes
SHA-256: 29919e889d25fe7d5da481c167e34cf823b4c1658729e46dbeaa802f6cf6c110
font_01_sfnt_off00005d99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D99 19676 bytes
SHA-256: b4468029984e76c85e81dcd91bd5ea6f51e179cbd05b2345aad1bb30b3cf86dd

Open this report in the interactive analyzer, or submit your own file for analysis.