Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5ee2d2730cd3fd7…

MALICIOUS

PDF

46.4 KB Created: 2021-05-16 16:31:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e6f8d7ad716897e6bdc65f05edf184a9 SHA-1: 13ba4b8da876ff416269eba745efca16b6802c49 SHA-256: d5ee2d2730cd3fd76ef36bdfecb1876183a19995c270b2e77fd1f6da0699d600
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized links for downloading game-related content. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a tactic to attract users with enticing download lures. The presence of a direct URL in the document body further supports this, likely leading to a secondary download or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/roblox-game-free-download-game-hack
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/free-robux-no-verification-required_GM431946152.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/minecraft-ps4-free_GM479516143.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/promo-codes-to-get-free-robux_GM431946152.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/coin-master-online-free-spin_GM406889139.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/free-robux-today_GM431946152.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master_GM406889139.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-coins-for-free_GM479516143.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/coin-master-com_GM406889139.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/hack-client_GM479516143.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/free-robux-com-no-verification_GM431946152.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack-2021_GM431946152.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/best-free-minecraft-hacked-client_GM479516143.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/cute-free-roblox-outfits_GM431946152.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/coin-master-game-hacking-tricks_GM406889139.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-cheat-engine_GM406889139.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/sb-game-hacker-coin-master_GM406889139.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/create-minecraft-server-free_GM479516143.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/free-roblox-premium_GM431946152.pdf
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack_GM431946152.pdf
    • https://robuxhaxs.com
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049dc.bin
96ccc081d2b4d4a8caaefafe8d5d296ce09384aef5a31fc7ff3a7b5137a9d299		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49DC 26164 bytes
font_01_sfnt_off000086ff.bin
787e0768241fb57660bcc9c7f726cf687277c463cdf8c586c4782ee9d03c3606		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86FF 2840 bytes
font_02_sfnt_off000090be.bin
24334cb4fb439f8e8a77e363ed5125029932f1001a0c368d5bddcb4d56c7855b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90BE 18944 bytes

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