Malicious PDF — malware analysis report

Static analysis result for SHA-256 193814da7e66d4a1…

MALICIOUS

PDF

34.3 KB Created: 2021-06-28 19:38:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: a395a91385a217ce181aa3c995cabf7e SHA-1: d57b267fff5a9a950b38c6f413638621a8ebe963 SHA-256: 193814da7e66d4a1c6928c9404d68aa3eef9f002489a4d49231ebb52f4a1a151
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency, directing users to a malicious redirector. The document body and heuristics indicate a clear intent to trick users into visiting potentially harmful sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

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/roblox-tricks-cheats-game-hack In PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/roblox-hack-for-life-in-psridise_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-get-free-robux-east-on-anithing_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-roblox-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/robux-hack-github_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/roblox-free-codes-for-items_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/roblox-hack-extreme-nijecotr_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-admin-commands-roblox-script_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-robux-hack-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/lol-this-guy-tryed-to-hack-me-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/get-free-robux-by-doing-surveys_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-open-cheat-engine-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-cheat-in-roblox-paint-n-guess_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-catalogs-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-robux-for-lg-phone_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00003180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3180 21648 bytes
SHA-256: 756ddb025a223df76fa56aebe0f1133bb0a4a47a1b6bbacbbc820249c73d63cd
font_01_sfnt_off0000610b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610B 19044 bytes
SHA-256: 5006c0522350bce3870abc7e2776ede3944365aa8b4e715491d0245e68fed554

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