Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed4540038fedb092…

MALICIOUS

PDF

35.9 KB Created: 2021-07-03 10:54:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: ca98f5d05ac7020296d45062f856b867 SHA-1: 836c128eb7e2e6efc3cf8d2e92742a6bc848ecbd SHA-256: ed4540038fedb092c3d994a3962866a17ba1a3f1ddc42ba1bde85c9e9a4c99b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a free game hack or generator. The primary link redirects to malicious infrastructure, indicating a phishing or scam attempt. The document body and embedded URLs suggest a focus on popular games like Minecraft and Roblox, aiming to exploit user interest in obtaining in-game advantages. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/479516143/minecraft-java-edition-redeem-code-free-2021-game-hack In PDF document text
    • http://library.fk.upnvj.ac.id/repository/wurst-client-download_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/use-cheat-engine-for-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/robux-get-free_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/village-3-coin-master_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-robux-kazok_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/hack-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-unredemeed-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-how-to-hack-kohls-admin-house_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/assassin-roblox-hack-aimbot_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-level-7-exploit-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-roblox-accounts-with-cheat-engine-62-2021_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-best-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/copy-and-paste-for-free-gears-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-item-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/mathep_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/hack-robux_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_off0000355d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x355D 22476 bytes
SHA-256: 920eb567d046ecdadc445aedeedc44775e602c76f702ec79f80b451eb391815f
font_01_sfnt_off0000670f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670F 19116 bytes
SHA-256: a2b86775a090322cefa709cc1fcca9712d09ee5c8c945508c2446f9382ffb316

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