Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a2c9af88644ec30…

MALICIOUS

PDF

45.2 KB Created: 2021-05-14 19:15:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 14d88f3e75369b923cf150f479d94239 SHA-1: a01c5602cb5e7576f03ab4363b013c69bb276e2d SHA-256: 4a2c9af88644ec3098de0d134f8c6b9239a4cd1cd550f2ad483f6de072f7c33d
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous links to external websites, many of which are structured as SEO link farms for game hacks and cheats. The document body and embedded links suggest a lure to download malicious files or engage in phishing. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document may also attempt to trick users into executing commands, further increasing the risk.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/how-to-hack-roblox-on-mobile-game-hack PDF link annotation
    • http://dieter-sauter.com/images/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://dieter-sauter.com/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/robux_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://dieter-sauter.com/images/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://dieter-sauter.com/images/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/where-can-i-get-free-spins-for-coin-master_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_off0000470d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x470D 31624 bytes
SHA-256: cccb3a39102ecb3062a0eada720841598b0fe7d2549c810ea6a9790e94d30a7e
font_01_sfnt_off00008d50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D50 18660 bytes
SHA-256: cfa1ee913d083643ff52c211c3740090c9e62a3c87f75aa46b5fb7e4e02a93ce

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