Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e32e58f3c855071…

MALICIOUS

PDF

34.8 KB Created: 2021-06-19 14:14:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19
MD5: d6f1ac70f12fc5d668b43a9d2f438896 SHA-1: a747a1e8bf41da2f93f1c988af690873bcb2c8ee SHA-256: 4e32e58f3c855071e04a5d53b54bd93c658f74ed72af73ba8b1d5af51dc12ab0
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/hacker-roblox-skin-game-hack In PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-speed-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-hack-strucid-roblox_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/youtube-how-to-hack-free-robux-using-pastebin_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-do-you-hack-thrue-walls-roblox-murder-mystery-2_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-hack-into-anybodys-roblox-account-in-5-minutes_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/new-update-roblox-free-2021-explot_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-report-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-roblox-accounts-with-bunnle-gum-sim-pets_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-robux-codes-october-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/counter-blox-roblox-rc7-hack_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-pinewood-points-hack_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-offsale-items-roblox_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-hack-v311-download_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-roblox-hacks-pc_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-speed-hack-in-swordburst-2-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3197 22496 bytes
SHA-256: 47f058b4196371d85399a7559ffbe1b58fcceb2a60ca389adf0941b686838513
font_01_sfnt_off000063c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C5 18776 bytes
SHA-256: ac21b44ac7dfd004a633edbeec15cd6a5b66d2e5435fca6b419e19c6659e3728