Malicious PDF — malware analysis report

Static analysis result for SHA-256 502fd562697d2d6e…

MALICIOUS

PDF

35.3 KB Created: 2021-06-25 11:42:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 08887add95d2c0f8bb37f41ac94e30a9 SHA-1: aa46c38e91deb17dca297381b5add02513f54a9a SHA-256: 502fd562697d2d6e6de98b4620e3eea026480d4b18d8b6b05a3a7fea5e914571
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to lure users into clicking on what appear to be game-related hacks or generators. The primary link directs to a known malicious redirector infrastructure, suggesting a phishing or scam attempt. The document body and heuristics indicate a focus on popular games like Roblox and Coin Master, aiming to exploit user interest for malicious purposes.

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/free-days-dino-sim-roblox-game-hack In PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-hacker-tycoon_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/equillex-how-to-hack-into-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/robux-cheat-engine-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-hack-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-hack-lumber-tycoon-2-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-hack-in-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hack-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-coins-and-spins_GM406889139.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_off000030d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D9 22976 bytes
SHA-256: 281e30bf7fccb4b1e33e4e341eb255bc8b7db32ca6c46b57ab518f5531c15240
font_01_sfnt_off00006437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6437 19380 bytes
SHA-256: 2550f238e038bf4bebc9260a5e02a0bf7e38fc14e9f4ffe026d41b1d2f4b5011

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