Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e54ebd05d26388c…

MALICIOUS

PDF

42.1 KB Created: 2020-08-25 07:16:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 901956e5ef52b1bb480afb9e4553831a SHA-1: 99f2fee5383df3f6b735322d0842a186629dada0 SHA-256: 9e54ebd05d26388ceeef98478e0d34aaf2b3255fa9d5ac4c0c7c26df29bb14be
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=alchemy+guide+skyrim+recipes'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the same lure text and URLs. The primary attack pattern involves redirecting the user to malicious infrastructure.

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.com/pify?keyword=alchemy+guide+skyrim+recipes
    • http://fuwebetav.southernsisbowtique.com/uploads/1/3/1/6/131607321/fodiwoluwibasug-fopewi-mekubew-wuwed.pdf
    • http://files.ozgreetings2.com/uploads/1/3/1/8/131872104/liruduratudozij-sasugifesenof-sudir-fanoxoretoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/pepibubagokirejesiguvefaw.pdf
    • https://cdn.shopify.com/s/files/1/0439/9228/5342/files/finding_area_irregular_shapes_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/5656/1318/files/bepatujuzojaku.pdf
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/1818139218.pdf
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/mawog.pdf
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/18514420709.pdf
    • https://cdn.shopify.com/s/files/1/0434/4283/1522/files/andhra_bank_mini_statement.pdf
    • https://cdn.shopify.com/s/files/1/0431/5047/5413/files/vekisisabujaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/8214/5182/files/6992329762.pdf
    • https://cdn.shopify.com/s/files/1/0448/0620/9702/files/magisterium_4_gratis.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_off00006826.bin
064c89e97aad7eddf9b0671699c37fc651222f9fd8ed10d3cb14cfa342b24837		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6826 5432 bytes
font_01_sfnt_off00007a85.bin
92844e160324a15953d322579d8c378938241b1b6695fbe6a78727884e39bf5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A85 9904 bytes

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