Malicious PDF — malware analysis report

Static analysis result for SHA-256 07c1680e5308d350…

MALICIOUS

PDF

34.4 KB Created: 2021-06-29 13:03:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0307d29f2a6111aa9deb087fda188c79 SHA-1: bf11ed1a15c76540bb2951bab648c49b64079efd SHA-256: 07c1680e5308d350ffe1fb93a207fc48e426f45967a9e367ff1e6538f550d414
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a 'click here to download' call to action, strongly suggesting it is designed to trick users into downloading a secondary payload. The content focuses on game cheats and currency, a common lure for phishing and malware distribution. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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 http://netcdn.co/app/431946152/money-cheat-jailbreak-roblox-game-hack PDF link annotation
    • http://vagency.us/images/roblox-how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/to-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/hack-avatar_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/free-robux-today-only-2021_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/how-to-install-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • http://vagency.us/images/best-roblox-games-to-hack_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/roblox-free-robux-genorator-2021-no-suvery_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://vagency.us/images/roblox-change-username-for-free-fixed-script-2021_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/how-to-get-free-tiktok-hearts_GM835599320.pdfIn PDF document text
    • http://vagency.us/images/roblox-wild-west-guns-free-fe_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/how-to-hack-on-roblox-wiki-how_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/badge-hack-roblox_GM431946152.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
font_00_sfnt_off00002e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E28 22464 bytes
SHA-256: 3af9349706d58b30bceac60680991e7a63f1a961eb45f310f4d90221a2e5a26d
font_01_sfnt_off0000600c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600C 19588 bytes
SHA-256: f524daace34500a64e2c46c7722d936f7e5dca15ff52eaf8699669aced0f34df

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