Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ddbf14426320159…

MALICIOUS

PDF

43.7 KB Created: 2021-05-15 22:17:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7008720b9ceed04138ae48bba4f7c830 SHA-1: bb7e88a8ae8ee006c6f8135a1b8f785cea9a8990 SHA-256: 4ddbf14426320159003dd57124eab5f980497e2ee3ae21519c309986c0978a12
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free generators". The primary lure URL is https://netcdn.xyz/app/406889139/coin-master-get-free-spins-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to trick users into visiting malicious sites, likely for further exploitation or credential harvesting.

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-get-free-spins-game-hack In PDF document text
    • https://vodomery.kiev.ua:443/images/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/free-robux-now_GM431946152.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/i-need-robux_GM431946152.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/real-roblox_GM431946152.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/free-coin-spin_GM406889139.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://vodomery.kiev.ua:443/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://www.urcouponsdeal.com/2019/03/coin-master-free-spin-and-coin-links.htmlIn 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
stream_003_off00004a4e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A4E 28556 bytes
SHA-256: c6e683e172e0bdb229381a874091e60cdbe6f18fe4abaa192880078daae15b38
font_01_sfnt_off000089ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89EF 17884 bytes
SHA-256: c6e3aa80acb50b183a8019e16e9643e6037364900a75a2e596e95bf6fddb3d38

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