Malicious PDF — malware analysis report

Static analysis result for SHA-256 db7246caf1d7d6b9…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 19:18:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5798635dbeef53159ac3e0edc23ddcbc SHA-1: 48f4e5454b49be65efebb6085c34f3382c8c650c SHA-256: db7246caf1d7d6b9dae4a2c38743b9e0c44bbf019fd908cc2c2448849ca2993b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically advertising 'free generators' and 'game hacks' for popular games. The primary malicious URL identified is http://netcdn.tw/app/431946152/robuxmatchcon-game-hack, which is flagged as a known malicious redirector. The document body and embedded URLs suggest a social engineering lure to trick users into visiting potentially harmful sites.

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.tw/app/431946152/robuxmatchcon-game-hack In PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/roblox-been-hacked_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/robux-online_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/como-tener-mas-dinero-en-adopt-me-roblox-con-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/coin-master-freebies_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/how-to-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/snippet-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/roblox-lumber-tycoon-2-free-vip-server_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/vip-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/coin-master-daily-free-spin-and-coin-link-haktuts_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_off00002e88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E88 21780 bytes
SHA-256: fea0eb09ba426bda77ac7e0f06376841e5ccb16334794d76f03d802d65a8b842
font_01_sfnt_off00005e78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E78 19084 bytes
SHA-256: 22fb853357d700a883506443e03244379ebe89dfe763389f41fb0df375e68649

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