Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f590b22424afad9…

MALICIOUS

PDF

42.5 KB Created: 2021-05-13 06:05:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cd8bd15966de24d3b90b56102433c0cd SHA-1: 8a2c4727ac19c37f8587fed560916a3f8f5928ed SHA-256: 7f590b22424afad92413bc9050319869e3ffdb39b70651c4560456fdaea998ab
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as free game hacks and generators. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/479516143/free-printable-minecraft-coloring-pages-game-hack In PDF document text
    • http://laboraltoledo.com/images/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://laboraltoledo.com/images/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/coin-master-map_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://laboraltoledo.com/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/robloxhacks_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://laboraltoledo.com/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://laboraltoledo.com/images/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/free-spin-coin-master-ios_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_off00004b74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B74 24832 bytes
SHA-256: f3b39cc4441407cdb200851fb02c139c1fafe181775c0da5c6cbd4b229af7c9e
font_01_sfnt_off00008367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8367 18384 bytes
SHA-256: b54cebd8b2bbc40deba01da3a93219bb66384243215780ac353a5f98c97c66c1

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