Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d295599e421b418…

MALICIOUS

PDF

35.5 KB Created: 2021-07-06 00:50:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 9080aaa724bfb302f867bc67deef559d SHA-1: cf6797f0d0b87992864f04a8da2b7032c149639a SHA-256: 4d295599e421b418d6e3fac3db0e80d00be0e3952b60995d1e7aaabe7ffabf26
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free currency, directing users to a known malicious redirector. The embedded URLs and the document content suggest a phishing or scam attempt to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure and embedded links indicate a malicious intent to redirect users to malicious infrastructure.

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/406889139/how-to-create-group-in-coin-master-free-spins-game-hack In PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/robux-free-account_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-free-money-on-roblox-meep-city_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-free-bc-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-roblox-2021_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-free-10-000-robux_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-robux-codes-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/simplysarc_GM479516143.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/louka-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-minecraft-printables_GM479516143.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_off000033aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33AA 23032 bytes
SHA-256: 2c2418f978f2ca69bf4caaef116e5df21c4ee63a876f57edee97dfd8caa88819
font_01_sfnt_off0000677f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x677F 18480 bytes
SHA-256: ae0f5ee35ade10f7a62e6d06929c5e0e04e9c689c9567e6b8441a297d9ba33b3

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