Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ca10fb68afd0d54…

MALICIOUS

PDF

34.6 KB Created: 2021-06-19 09:50:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 8f811f12031a418b95b012823966ea21 SHA-1: 6afc0283f25895044e4813ca48b7b87e73aa7c1c SHA-256: 6ca10fb68afd0d5405c59702600ea4c9a39e2adb1058e2132769bb757e97bdfa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links that redirect to malicious infrastructure, masquerading as game hacks and free currency generators. The primary lure is the promise of 'free generator / game hack' content, designed to trick users into clicking the malicious links. No scripts were extracted, but the embedded URLs and the PDF's structure strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.
  • 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-open-cheat-engine-without-roblox-shutting-down-game-hack In PDF document text
    • http://opac.kolejkrim.edu.my/repository/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/cheat-engine-cheats-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/how-to-speed-hack-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/coin-master-hack-fast_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-admin-commands-dll-hack_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/hacks-for-roblox-jailbreak-noclip-18_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/cool-free-roblox-skins_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-coins-and-spins-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-hack-to-get-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/what-games-on-roblox-give-you-free-robux_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_off00002e9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E9D 22364 bytes
SHA-256: 84ec6183843d641625d66d39cf8654085a2d3c606b92505a168df1526542f491
font_01_sfnt_off0000602e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602E 19720 bytes
SHA-256: d111b688bae5074f8cdc12812ab6b6472a73b586e0aed7ec2fb7fba8c77a34ea

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