Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0217365896942ce…

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 19:23:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b81c4b9e51037f08898fcf8195968e79 SHA-1: 6a037ae8a053782f84769800b9a0c889f1b7e9a8 SHA-256: d0217365896942ceed2753813626ad41ce7f8c8af5288440fb924324a51d4520
102 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are SEO-optimized and point to game-related download pages. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, and the ML classifier strongly flagged this PDF as malicious. The document body also contains a direct URL to a potential download, suggesting a lure for users to obtain game cheats or related content, which could lead to malware.

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.tw/app/406889139/free-links-for-coin-master-game-hack
    • https://imagetravelnepal.com/userfiles/files/free-roblox-promo-codes-for-robux_GM431946152.pdf
    • https://imagetravelnepal.com/userfiles/files/free-robux-generator-no-verification_GM431946152.pdf
    • https://imagetravelnepal.com/userfiles/files/minecraft-world-free-download_GM479516143.pdf
    • https://imagetravelnepal.com/userfiles/files/orewards-com-free-robux_GM431946152.pdf
    • https://imagetravelnepal.com/userfiles/files/lastrick-com-coin-master-hack_GM406889139.pdf
    • https://imagetravelnepal.com/userfiles/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdf
    • https://imagetravelnepal.com/userfiles/files/speed-hack-roblox-cheat-engine_GM431946152.pdf
    • https://imagetravelnepal.com/userfiles/files/free-robux-codes-to-get-22500-robux_GM431946152.pdf
    • https://imagetravelnepal.com/userfiles/files/coin-master-free-spins-link-download_GM406889139.pdf
    • https://imagetravelnepal.com/userfiles/files/minecraft-free-download-pc_GM479516143.pdf
    • https://imagetravelnepal.com/userfiles/files/minecraft-hack-client-18-9_GM479516143.pdf
    • https://imagetravelnepal.com/userfiles/files/free-spins-and-coins-coin-master_GM406889139.pdf
    • https://imagetravelnepal.com/userfiles/files/free-robux-websites-that-actually-work-2021_GM431946152.pdf
    • https://imagetravelnepal.com/userfiles/files/pubg-uc-shop_GM1330123889.pdf
    • https://imagetravelnepal.com/userfiles/files/2021-free-spins-coin-master_GM406889139.pdf
    • https://imagetravelnepal.com/userfiles/files/roblox-bubble-gum-sim-hack-2021-june_GM431946152.pdf
    • https://imagetravelnepal.com/userfiles/files/free-minecraft-mods-for-pc_GM479516143.pdf
    • https://imagetravelnepal.com/userfiles/files/coin-master-hack-without-verification-ios_GM406889139.pdf
    • https://imagetravelnepal.com/userfiles/files/free-robux-today_GM431946152.pdf
    • https://imagetravelnepal.com/userfiles/files/murder-island-cheat-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003345.bin
48c1b88a66b2c7adc3e76f7f15fe8a080daf56b15b41e99f35c6a7a51b73ff1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x3345 23076 bytes
font_01_sfnt_off00006743.bin
4fd4acee7e61db1e46350db43a8aa18a4e40f59134fdf79b97aaab2dfd194894
pdf-font-stream PDF embedded font (sfnt) at offset 0x6743 18168 bytes