Malicious PDF — malware analysis report

Static analysis result for SHA-256 dec361fdf8faa73a…

MALICIOUS

PDF

33.7 KB Created: 2021-06-25 08:46:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d32f6c82ab543a9729ee900a99d27da6 SHA-1: 1982a2dcde74d2467111f91b0938bfcdc1eb90b7 SHA-256: dec361fdf8faa73aee46bd95715b460f6a42543f089699823b36e76cd506d9c0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and cheats, specifically mentioning 'Escape The Supermarket In Roblox'. It contains multiple embedded URLs that redirect to malicious infrastructure, including the primary URL http://netcdn.co/app/431946152/escape-the-supermarket-in-roblox-cheats-game-hack. The presence of a download button lure and the ML classifier's high confidence score further support its malicious nature. No scripts were extracted, but the document's structure and embedded links indicate a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/escape-the-supermarket-in-roblox-cheats-game-hack In PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/robux-cheat-net_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-accessories-alfheim-online-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-no-bc_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-game-hunter_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-be-a-real-hacker-in-roblox_GM431946152.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/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-star-wars-first-order-cheat-engine_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-for-nintendo-switch_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spins-and-coins-for-coin-master-game_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_off00002aec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AEC 22764 bytes
SHA-256: b851c015fb6f6da018014fa9dc927b9b3d95dc9e87ef8567072e5018c6019c0c
font_01_sfnt_off00005dba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBA 19500 bytes
SHA-256: c789d0e15b494c0f787cae9805777703ce6d99ef9e34e51103247dac72bf2ac0

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