Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f960f69c4701186…

MALICIOUS

PDF

42.7 KB Created: 2021-05-16 06:01:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: a3faa606b025c20709b4af2e746c2731 SHA-1: ccc7e93f901dd014ee21694e2e7c9cc464129867 SHA-256: 0f960f69c47011861c6c6cc84ff02332a2766ce248c8018f64d7ebf953bcc2a6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' or game hacks. The primary lure URL is https://netcdn.xyz/app/431946152/free-robux-without-human-verification-real-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering tactic to drive traffic to potentially harmful sites, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/free-robux-without-human-verification-real-game-hack In PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/earn-robux-websites_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/mcpe-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/www-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/rbx-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/how-to-get-free-robux-instantly_GM431946152.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_off00004883.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4883 24796 bytes
SHA-256: 9ef85fc6851776c8da318cea016f959809c08a6bca974353f8fbafa8c7a3a80a
font_01_sfnt_off000081aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81AA 19296 bytes
SHA-256: fcd37aae12381262441149b3f055c838aea0a99c045645b338d4096dcdd54a9c

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