Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6f142cc6b83894f…

MALICIOUS

PDF

43.9 KB Created: 2021-05-13 21:14:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 0a4fe4d018d7d56052e8bd082b363b7f SHA-1: 748f06507093cc5997ae34fbc8e1bb85882c8cc2 SHA-256: a6f142cc6b83894fee6e0b3f3d86c3e9ac5e1632de6c7a65d628404c454f2b3d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirector infrastructure, specifically advertising "free generator / game hack" content. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-life-hacks-game-hack. The document body and embedded URLs suggest a lure for obtaining in-game currency or cheats for popular games like Minecraft and Roblox, which is a common social engineering tactic. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or scam attempt.

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/479516143/minecraft-life-hacks-game-hack In PDF document text
    • http://library.ft.upnvj.ac.id/repository/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-coins-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-golden-card-hack_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a35.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A35 28552 bytes
SHA-256: 17ceb16cad2d4c5b884bcf6606d07a74d612a3b6e90b209e8683a2bbe3567ed6
font_01_sfnt_off00008b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0D 17740 bytes
SHA-256: a9f228f82f523f82f2ec29969fa693daed0cd9273bc8dad9e6ca4184f04ba0fe

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