Malicious PDF — malware analysis report

Static analysis result for SHA-256 e45cfdbaac69ee65…

MALICIOUS

PDF

27.6 KB Created: 2021-06-25 15:30:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 6839f30a784ca10f01b9bc65f183dd03 SHA-1: a61572601e313ae548ded12fcd6e5004b3e3da28 SHA-256: e45cfdbaac69ee6564c6afd4fb561725b14027892ea1a55184246289e852b510
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to lure users into clicking on offers for free game-related items, such as Robux or Minecraft hacks. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. The document body and embedded links strongly suggest a social engineering tactic to drive traffic to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 4

  • 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.
  • 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/free-roblox-robux-card-codes-game-hack In PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-hack-roblox-accounts-2021-march_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/mad-city-roblox-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/roblox-how-to-get-dominus-hat-for-free_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-no-human-verification-no-hack_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/minecraft-pe-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-minecraft-com_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-hack-accounts-on-roblox-easy-method_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6B 22044 bytes
SHA-256: c614e3e7ef3b6ae77ab8a97cf1cc28f88b171090766d3ba7f286a180145c2325

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