Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7dc5836caf5d9cd…

MALICIOUS

PDF

45.4 KB Created: 2021-05-13 04:05:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 45f2ae6e571d538acbc64208d2f2321c SHA-1: 094f0c2ae14cd53e7b335a5feeb9815503305352 SHA-256: c7dc5836caf5d9cdf6987c5c345d6422c954ef479abc2434e79ca92f31637b3b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The primary malicious URL identified is https://netcdn.xyz/app/406889139/how-to-get-stuff-that-cost-coins-free-mcpe-master-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites, likely for further malware delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/how-to-get-stuff-that-cost-coins-free-mcpe-master-game-hack In PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/cmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-coin-master-spins-link-facebook_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b3d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B3D 25516 bytes
SHA-256: 4e5332b254565d015a3e8ad6e417fab47a65cf1163843bcde08a52a8aa64a730
font_01_sfnt_off00008505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8505 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EEF 18356 bytes
SHA-256: 3101775d535154cc7fa4b6a00cd898a447eb1921ab62fdc8d89394fd7b19c794

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