Malicious PDF — malware analysis report

Static analysis result for SHA-256 be86b1aee768868b…

MALICIOUS

PDF

32.8 KB Created: 2021-06-25 01:51:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 173c26cff23eb9fbef23b8d2616e6d8d SHA-1: 8a18ba75519333cfbd652dcdc6e6da227211de88 SHA-256: be86b1aee768868b1694600fdde91e022bc65b5f54ce716e8130780c819f2489
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the presence of malicious redirectors and the lure content indicate a high likelihood of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-do-you-change-your-roblox-name-for-free-game-hack In PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-support_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/aplicacion-rusa-para-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/roblox-devil_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/real-free-robux-hack-to-buy-anything-kindle_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-com_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/minecraft-free-ios-no-verification_GM479516143.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_off000029c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29C4 21796 bytes
SHA-256: 696184dc4fc103d716f662882318738030ef3dec5c698c86a7054748f82c2a6d
font_01_sfnt_off000059a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A4 19712 bytes
SHA-256: 59e8ae4e55f08f6ef64d16f7e1dc8501c9882e37cf0487d72fb733d1139c74c2

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