Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0f346d363b77dd4…

MALICIOUS

PDF

33.7 KB Created: 2021-07-09 00:20:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 56ee1e919147f4752b6653e1cb426f32 SHA-1: b045de0c73cd8eb71c03f5b52fe02a60bfe8ca3e SHA-256: c0f346d363b77dd438702230a51aafdb13e198fd6239f601be0692a8d6a7063e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that are identified as malicious redirectors, specifically leading to a 'game hack' lure. The document body and heuristics confirm the intent is to trick users into visiting a URL that likely hosts further malicious content or exploits. No scripts were extracted, but the presence of malicious links and the lure indicate a phishing or social engineering attack.

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.tw/app/479516143/minecraft-cracked-client-game-hack In PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-free-robux-enter-code_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/20-free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/mod-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-make-your-own-game-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-ios-hack-download_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-use-speed-hack-on-roblox-without-kicking_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-coins-and-spins-for-coin-master-game_GM406889139.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_off00003034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3034 22148 bytes
SHA-256: bba7288df9d5bd912328fd5f84b43692b2a2b7173b146a622b33b5e977d44478
font_01_sfnt_off000060fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FC 18272 bytes
SHA-256: 4ddd26612d1b2ce0148d6244bb6367f2af792424c164b22559c36d5fb5f87ca0

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