Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ff4dbcb06583a33…

MALICIOUS

PDF

34.0 KB Created: 2021-06-26 22:57:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: d57a675553a51d40445577c04ef5bfda SHA-1: dffc76865efc7e4d52e247ea89de2c44e862dc70 SHA-256: 6ff4dbcb06583a3399ca3d6bff56fbda38d010c91e46abbaf82803619c7febbe
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to known malicious infrastructure, specifically targeting users interested in game hacks and currency. The document body and extracted URLs suggest a phishing lure for in-game items, likely leading to malware download or credential harvesting. No scripts were extracted, but the presence of malicious redirector links and the ML classifier output strongly indicate malicious intent.

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/cache-http-robuxian.com-how-to-get-free-robux-v8-game-hack In PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/fearless-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/when-was-minecraft-free_GM479516143.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-roblox-script-executor_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-hack-into-anyones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/hoodie-t-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-free-robux-working-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/girl-hair-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-roblox-exploits-mobile_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/spins-coin-master_GM406889139.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_off00002d9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9C 21592 bytes
SHA-256: 52993f0e861622bca7949372fd2b2008a6a8499a73a322e99ccbf14cc712a29b
font_01_sfnt_off00005d0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0C 19964 bytes
SHA-256: 5fd725d01025066dc6f3c44eb9f56cbfd23fe7a8c75704e9d936560bd32dff5d

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