Malicious PDF — malware analysis report

Static analysis result for SHA-256 11ad07492356f418…

MALICIOUS

PDF

34.3 KB Created: 2021-06-25 07:13:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 336d573a5536a5847492c1a2e621be5c SHA-1: 93211aa988a517668bbd19e9f2a959ee00cbe387 SHA-256: 11ad07492356f418c120ba0a3abb1e74fa2eb5f7d94b33e39ddeffdb832b65dd
160 Risk Score

Malware Insights

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

The PDF contains multiple links to a redirector hosted on 'netcdn.co', which is flagged as malicious infrastructure. The document body and embedded URLs suggest a lure for game-related cheats or currency, likely to trick users into downloading further malware or visiting malicious sites. The ML classifier also strongly indicated maliciousness.

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/logiciel-de-cheat-roblox-game-hack In PDF document text
    • http://lib.untad.ac.id/repository/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-fly-hack-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/facebook-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-free-face-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-robux-please_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-future-tycoon-money-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-free-robux-2021-youtube_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-free-item-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/sript-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/comment-avir-des-robux-sans-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-obby-by-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/fre-robux-today_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-roblox-protosmasher-whitlist-code-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-hack-pubg-mobile-unlimited-uc-without-human-verification_GM1330123889.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/easy-way-to-get-free-robux_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_off00002ea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA7 22680 bytes
SHA-256: f88dfcaf5794e4f621505dd2cb6ec65a1ab37829a56bdf5d3c61e8429bc00100
font_01_sfnt_off000060ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FF 19044 bytes
SHA-256: 5b066f302e9026d141c44b1f2664f75a55f0a9970d7070063de6ddc8109bacf8

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