Malicious PDF — malware analysis report

Static analysis result for SHA-256 96905451cc9f53d4…

MALICIOUS

PDF

43.4 KB Created: 2021-05-14 23:09:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 5295e99271410dd5364e39c496e109df SHA-1: e5ff5a470b29bb3da0d7eb2dd60209d10d4497cd SHA-256: 96905451cc9f53d4385c64e5cacb1204d85bbfcc1aae17fdcb8b2222cf256cb0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The primary link directs users to 'https://netcdn.xyz/app/406889139/coin-master-mod-version-free-download-ios-game-hack', which is likely intended to lead to malware or a further phishing page. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/406889139/coin-master-mod-version-free-download-ios-game-hack In PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/spin-coin-master_GM406889139.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/free-robux-script_GM431946152.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/weird-roblox_GM431946152.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/robux-only_GM431946152.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/coin-master-free-spins--coins-2021_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
stream_003_off00004a07.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A07 26608 bytes
SHA-256: b99039f1a9e9a7bc7d6d84cc76d6ecf610831bffb971c45dc60814c564ece695
font_01_sfnt_off000086db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DB 18424 bytes
SHA-256: e21c1a46e414e08f32ecd5b141a565b40ef5ebf0a551a42677bec20a6ad54cab

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