Malicious PDF — malware analysis report

Static analysis result for SHA-256 551967e4ce480fab…

MALICIOUS

PDF

32.3 KB Created: 2021-06-18 02:21:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 984ded7fcfd5f05531b4c902e2da1c4d SHA-1: 39da8afdb76a2c5c201fed2854ed32c492826b2a SHA-256: 551967e4ce480fabcc9c0b31730d4586321fe58ff37ffa2e169d09240f4947e1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure for game cheats and generators, directing users to a known malicious redirector. The document body contains multiple embedded URLs that likely serve as part of the redirection chain or as alternative download locations for malicious content. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-game-cheats-game-hack.

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/roblox-game-cheats-game-hack In PDF document text
    • http://elib.acls-indonesia.com/repository/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/cheats-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/how-to-get-50-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-gift-card-pin_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/roblox-lumber-tycoon-2-money-hack-deutsch_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/fly-hack-roblox-cheatgg_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A05 21816 bytes
SHA-256: f714a51a218bff87cee29895d1dd8ba4950c820331facb442aa8d2e2fde1b1a0
font_01_sfnt_off000059fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59FB 18828 bytes
SHA-256: edf23c3c2d54af82947c6bc498c07cfdef10d3eef16b305089df73258df05549

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