Malicious PDF — malware analysis report

Static analysis result for SHA-256 f97240b0fe8c7f3d…

MALICIOUS

PDF

35.0 KB Created: 2021-06-19 15:59:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 650f1240381b7881d7b580808200bc01 SHA-1: dfb1e5b5850a173ae4a7d9134fdc5899299599e3 SHA-256: f97240b0fe8c7f3d54f2e3d76b9642e52c703ad26c99a60d486bab4cc727de90
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure, that promise free game currency or hacks. The document body explicitly mentions 'Roblox Hack 2021 Free Robux Generator' and includes a URL pointing to such a lure. This indicates a phishing or scam attempt designed to redirect users to potentially malicious 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/roblox-hack-2021-free-robux-generator-game-hack In PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-roblox-accocunt_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/make-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-to-hack-a-person-roblox_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/groups-give-free-roblox_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/robux-get-com_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-spin-link-free_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-generator-2021_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_off00002fdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDB 22680 bytes
SHA-256: dec3356f678b24fa559d359e22a861384c1283504316da7899698e07c5f98b0c
font_01_sfnt_off00006296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6296 19468 bytes
SHA-256: d0d71cee0b44cbfa3d9d3fc2c2af14095ef06f50e0708db6f9adce3b0adff640

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