Malicious PDF — malware analysis report

Static analysis result for SHA-256 d20f64d77bcfef51…

MALICIOUS

PDF

35.2 KB Created: 2021-06-29 16:54:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9349200f229f3309d4d5a4de6874efb9 SHA-1: 6b5d70a926230067a8237fa65119ce3f90c2d0c2 SHA-256: d20f64d77bcfef51d4824a279e51da855d8883bd17a500fd8d6744a6bead9bdf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/how-to-hack-into-someones-account-on-roblox-game-hack, is identified as a malicious redirector. The document's structure and content strongly suggest it is designed to lead users to potentially malicious websites for further exploitation 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/how-to-hack-into-someones-account-on-roblox-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-minecraft_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-games-for-free-no-sign-up_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-roubux-generator_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/2021-robux-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-items-on-roblox-no-pastebin_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-admin-on-roblox-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pokemon-go-free-pokeballs-code_GM1094591345.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/speed-run-4-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/does-free-r-here-in-roblox-actually-work_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-sin-verificacion-humana_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-get-free-skin-in-cs-go-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-2021-may_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/demon-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/what-happens-if-your-hacking-in-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-clone-cheat_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_off00003129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3129 22716 bytes
SHA-256: 57fbe26e27c3abce754cd4170b36ca503143e0df56f20de4b1a94b9f534d4431
font_01_sfnt_off000063d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D8 19324 bytes
SHA-256: e233dd31a69f5e1ba495398c81bfdd41b7f2126fceaf5c5d276e2b3e8269e004

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