Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7c997fe416591a2…

MALICIOUS

PDF

44.8 KB Created: 2020-08-23 00:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5010fd10f407092c65f2d7214eee1e4 SHA-1: 0109de825ad15ccf8b9341f980ce1e31874ad6ff SHA-256: f7c997fe416591a2aa8881299806c1774ea9f00b5fdb11c842377b92ff0f0a43
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=anole+care+information', which is likely used to redirect the user to malicious content. The presence of numerous other PDF links suggests a link farm or SEO manipulation tactic, potentially to obscure the true malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.cc/pify?keyword=anole+care+information
    • http://files.birthingintentionally.com/uploads/1/3/1/4/131483153/rufodezize.pdf
    • http://lewox.retrophilosophy.com/uploads/1/3/2/6/132681482/pudoseruwar-madagegepufa.pdf
    • http://files.bayareareclaiming.org/uploads/1/3/2/6/132695829/tuguzameros.pdf
    • https://cdn.shopify.com/s/files/1/0434/6681/7696/files/fezamanoxamo.pdf
    • https://cdn.shopify.com/s/files/1/0427/3196/2535/files/40277190521.pdf
    • https://cdn.shopify.com/s/files/1/0465/2154/8958/files/able_christmas_borders_microsoft_word.pdf
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/zafitutiwerilameg.pdf
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/dawazuk.pdf
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/bodacious_bbq_bossier_menu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9098/3574/files/36381996089.pdf
    • https://cdn.shopify.com/s/files/1/0432/9570/3204/files/how_to_change_discord_game_name.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000739c.bin
6fad702a28a4289baf6386beb9e18d7d01148c2259891618bd756df9b709952c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x739C 4840 bytes
font_01_sfnt_off000083f4.bin
3475953c9cfd2ccb3c3aa2efad04f225ce24353588fffc6eed8315c0c6ff7535		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83F4 10352 bytes

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