Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9488a66b1637e87…

MALICIOUS

PDF

34.0 KB Created: 2021-06-27 20:56:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 174a758d3bd7a82a46c65da30fdd18d2 SHA-1: 148e276cd7ef4a86eaee3e21a0ad6ab852cdcdb1 SHA-256: f9488a66b1637e87a99b3303e21ef71df97c9f9b6acf0186fc2b67d496a33152
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The primary lure URL is http://netcdn.co/app/431946152/how-to-get-gamepasses-for-free-on-roblox-2021-game-hack, which is part of a network of redirectors identified by heuristics. The document body and embedded URLs reinforce this lure, aiming to trick users into visiting potentially harmful sites.

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-get-gamepasses-for-free-on-roblox-2021-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-sued_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-ios-cheats_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robuxfree-con_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-promo-card-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/wheel-decide-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/piere-ware-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-zephplays_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/original-roblox_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_off00002f49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F49 21240 bytes
SHA-256: adb39889c31718d2e14e16857fcc3efede5f2574f82d53c317b5c6212903f2cc
font_01_sfnt_off00005d80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D80 19756 bytes
SHA-256: b2fa6401f5cf0ddd90b50805199ddff3ea1a32fbcd6df07132af0450d8d565aa

Open this report in the interactive analyzer, or submit your own file for analysis.