Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fd6d84f45cf5c50…

MALICIOUS

PDF

34.3 KB Created: 2021-06-27 08:26:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9c9668ca755bc1088e75c3a80f713b91 SHA-1: 733b61e4486c7e090a3303ff005b185a241fad05 SHA-256: 5fd6d84f45cf5c50ad22c17b0b205ef3214614f1365cc37d8a54d117781b7d49
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that lead to known malicious redirector infrastructure, specifically advertising game hacks and cheats. The ML classifier also flagged this document with high confidence. The presence of these links suggests the document is designed to trick users into downloading or visiting malicious sites, likely as part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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-hack-999.999-robux-2021-game-hack In PDF document text
    • http://repository.poliven.ac.id/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/without-pokemon-go-free-incense_GM1094591345.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/mcpe-116_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/robux-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-robux-2m_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_off00002f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F27 21920 bytes
SHA-256: 9e8023e88990552bd774e2a78d48c727e9b1a28ebad05512697887b289315140
font_01_sfnt_off00005f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F97 19428 bytes
SHA-256: 3cbc3384bae6e7026849b7154a1bbbd5b06eb1f6ef4e5e61d56d36196eb471a7

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