Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ccedd58e01f351…

MALICIOUS

PDF

35.3 KB Created: 2021-06-28 21:48:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5b90eaf9b5689d26991c19c13305200f SHA-1: 10c3776a4fcbb72a9061fb88e7dea5d7a8aff67f SHA-256: 80ccedd58e01f351eea073019fb18255d79c0a902b48cb3d22bc315c05e22a70
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically advertising 'free generators' and 'game hacks' for popular games like Roblox. The document body and embedded URLs reinforce this lure, aiming to trick users into visiting the malicious site. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a social engineering attack designed to lead users to potentially harmful 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-make-john-cena-in-roblox-free-game-hack In PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/hack-robux-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/roblox-aot-tshirt-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/hack-para-que-no-te-toqque-en-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/roblox-how-to-get-robux-free-no-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-abilities-for-twisted-murderer-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/hack-roblox-bee-swarm-simulator-apk_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/greenlegocats123-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/roblox-cheats-for-tix_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-roblox-card-codes-unused_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-robux-premium-launcher_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-a-survey_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/roblox-how-to-get-free-stuff-from-catolog_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-vermillion_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-song-codes-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-roblox-new-hood_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_off00003207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3207 22424 bytes
SHA-256: 2160a5c533d61aadf394a63e51e5c7ae0a9ebfa6078cf50b4318ca6384bd9de7
font_01_sfnt_off000063f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F1 19512 bytes
SHA-256: 44d69b15709b8074ca54cc466a91e7e879edad26664dcd53688de76c142ab83b

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