Malicious PDF — malware analysis report

Static analysis result for SHA-256 774d5c0d54e9a047…

MALICIOUS

PDF

41.9 KB Created: 2021-05-15 15:02:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: baf834724974c1da42058dca67a5b489 SHA-1: 566e62c4e772b5d0eb1a87bdea78b0e8fd7d558e SHA-256: 774d5c0d54e9a047dd09eff47d79c3f7bef799ae28f51084f8cfe48f5395b636
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a link farm, that lead to pages promising free in-game currency and software hacks. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests a phishing or scamming attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious lure designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/sites-to-get-free-robux-game-hack
    • https://www.hotel-forsthaus.com/images/coin-master-free-cards-hack_GM406889139.pdf
    • https://www.hotel-forsthaus.com/images/how-to-get-coin-master-free-spins-in-email_GM406889139.pdf
    • https://www.hotel-forsthaus.com/images/how-can-you-get-minecraft-for-free_GM479516143.pdf
    • https://www.hotel-forsthaus.com/images/free-google-play-promo-codes-coin-master_GM406889139.pdf
    • https://www.hotel-forsthaus.com/images/coin-master-free-spins-link-whatsapp-group_GM406889139.pdf
    • https://www.hotel-forsthaus.com/images/wurst-download_GM479516143.pdf
    • https://www.hotel-forsthaus.com/images/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdf
    • https://www.hotel-forsthaus.com/images/best-minecraft-hacked-client-2021_GM479516143.pdf
    • https://www.hotel-forsthaus.com/images/how-to-get-100-robux-for-free_GM431946152.pdf
    • https://www.hotel-forsthaus.com/images/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdf
    • https://www.hotel-forsthaus.com/images/coin-master-100-spin_GM406889139.pdf
    • https://www.hotel-forsthaus.com/images/adopt-me-roblox-hacks_GM431946152.pdf
    • https://www.hotel-forsthaus.com/images/how-to-get-2021-robux-for-free_GM431946152.pdf
    • https://www.hotel-forsthaus.com/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
    • https://www.hotel-forsthaus.com/images/free-spins-coin-master-generator_GM406889139.pdf
    • https://www.hotel-forsthaus.com/images/minecraft-mod-menu_GM479516143.pdf
    • https://www.hotel-forsthaus.com/images/minecraft-free-download_GM479516143.pdf
    • https://www.hotel-forsthaus.com/images/coin-master-34-4-hack-download_GM406889139.pdf
    • https://www.hotel-forsthaus.com/images/free-spins-coin-master-blogspot_GM406889139.pdf
    • https://www.hotel-forsthaus.com/images/coin-master-hack-2021-ios_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004909.bin
195b85aa5b6b4a14982ec96412ff5ee6dfa58986cbd1621a0b0b357c08297c3a
pdf-font-stream PDF embedded font (sfnt) at offset 0x4909 25080 bytes
font_01_sfnt_off0000818e.bin
b3c6e6b81f0aade665b3e9e34fb665158f9d1803db8458128eb468a961d6d74b
pdf-font-stream PDF embedded font (sfnt) at offset 0x818E 18236 bytes