Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd533bd698427999…

MALICIOUS

PDF

35.0 KB Created: 2020-08-19 19:39:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44153f953ffc0972f288ac6128a6ea6d SHA-1: 7be0a14301573b2a4371646491eeafc3ba7ddeb6 SHA-256: cd533bd698427999a7b41fd39b70230feb3a3bbe95fd9c540bcd8019a1ad1af7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though partially corrupted, contains text that appears to be a lure, referencing a song title and potentially other SEO-related keywords, which aligns with the PDF_SEO_LINK_FARM heuristic. The primary malicious URL identified is ttraff.com, which is flagged by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic.

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=ye+bandhan+to+song++pagalworld
    • http://files.oace.co/uploads/1/3/1/3/131381781/parotakime.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/66268437835.pdf
    • https://cdn.shopify.com/s/files/1/0437/1467/4841/files/tube_digestif_de_la_vache.pdf
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/butizame.pdf
    • https://cdn.shopify.com/s/files/1/0429/6740/0601/files/kepimawigefumevebezu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/bizanekidulagotogeronin.pdf
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/automatic_transmission_parts.pdf
    • https://cdn.shopify.com/s/files/1/0429/2981/5711/files/74423360005.pdf
    • https://cdn.shopify.com/s/files/1/0429/1887/1207/files/autodesk_revit_mep_2020_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1402/files/horror_movies_hollywood_2017.pdf
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/sonaropa.pdf
    • https://cdn.shopify.com/s/files/1/0431/5385/0528/files/67270220911.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_off00004a97.bin
2098d23379a43374cf5ea6ca84ec7e8a1ddc3c9d5b85cd388b5e9e170e4511f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A97 5416 bytes
font_01_sfnt_off00005d02.bin
dbd600515016c9f2c7ebb71fd749050ed2f717f28a5c8b71304e6c3d08574a27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D02 10080 bytes

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