Malicious PDF — malware analysis report

Static analysis result for SHA-256 20164c232b0c4f09…

MALICIOUS

PDF

42.8 KB Created: 2021-05-12 16:01:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 29a82b601a7828e092e4cbd5a84f3ff9 SHA-1: 751879dae9abf768cde9b0886e71aee69e1220c4 SHA-256: 20164c232b0c4f097c28b00e0b4cfcc601c9b6a82ff6dc939f2bf972af982cdf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks'. The primary redirector URL is https://netcdn.xyz/app/431946152/mathep-game-hack. The document body and embedded artifacts suggest a lure designed to trick users into visiting these malicious sites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/mathep-game-hack In PDF document text
    • http://atrax.hr/files/coin-master-hack-spin-generator-tool_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/free-robux-android_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/easy-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/minecraft-com-free_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/roblox-play-now-for-free_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-daily-free-rewards_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/free-robux-websites-that-actually-work-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
stream_003_off0000469b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x469B 27272 bytes
SHA-256: 35f15e0f51c3d77e286808b12aae8952843437cde486695f7efcb973ae92865f
font_01_sfnt_off000085c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C8 18068 bytes
SHA-256: 2b3a9c081553d581a827df65dee23cc3b514f38b63125b20306762026e644864

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