Malicious PDF — malware analysis report

Static analysis result for SHA-256 69d8abdd268b6587…

MALICIOUS

PDF

37.4 KB Created: 2021-06-18 06:57:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 295c2402027c515213ffb06351a51bb1 SHA-1: f92be6c677d17595a1bd56b354f5d0b1f7c9cc26 SHA-256: 69d8abdd268b658788090b08b8c482ea0e8744fa2338aed9aad5639e8932e174
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free Robux' and includes a link to a known malicious redirector. The ML classifier also flagged this PDF as malicious. The embedded URL likely serves as a gateway to a phishing site or a download for further malicious content.

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-get-free-robux-on-ipad-2021-easy-game-hack In PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/mad-city-roblox-hack-executor_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/roblox-free-pets_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-by-doing-nothing_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/wizard-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/pubg-20210-uc-price_GM1330123889.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-april_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/microsoft-rewards-roblox_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_off000036d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36D5 22888 bytes
SHA-256: d8d4b70c7ca6ef88038dc23e044c4ae39adb0c74c52c7af0b7c90c5abfa9376e
font_01_sfnt_off00006a67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A67 19916 bytes
SHA-256: 40b880e2c0f73ad8fbeefb011f760f23e020dc08aad11806cdc9f0b607f999e0

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