Malicious PDF — malware analysis report

Static analysis result for SHA-256 19ff51a50f94b4f0…

MALICIOUS

PDF

35.2 KB Created: 2020-08-10 22:17:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59abd2cb8414ed1ea6d2965340cf861d SHA-1: 6fff23cd832678e95fa0e11b46d1b5c2c47c187d SHA-256: 19ff51a50f94b4f0f05191c0aa446cfb9185ca49e4910e3b98bb6baa2fd31494
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, with the primary heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=aguas+de+marco+piano+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the document's purpose is to drive traffic to this malicious site. The presence of numerous other links, many pointing to Shopify domains, indicates a link farm strategy to obscure the malicious destination.

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=aguas+de+marco+piano+pdf
    • http://files.thesecretkitchencafe.com/uploads/1/3/0/7/130775304/nesinabenofew.pdf
    • http://files.lauradubin.com/uploads/1/3/2/6/132683154/setafibunisikagil.pdf
    • http://nazimete.arizonadpsrp.org/uploads/1/3/2/3/132303195/7df4ea5f1a3.pdf
    • https://cdn.shopify.com/s/files/1/0430/7392/9377/files/vajatufabevenutumurisekid.pdf
    • https://cdn.shopify.com/s/files/1/0431/0905/6668/files/bosch_automotive_aftermarket.pdf
    • https://cdn.shopify.com/s/files/1/0431/0545/2193/files/99890708190.pdf
    • https://cdn.shopify.com/s/files/1/0434/4299/5352/files/xodanodu.pdf
    • https://cdn.shopify.com/s/files/1/0428/7630/5564/files/nusopibebujiril.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/42654094341.pdf
    • https://cdn.shopify.com/s/files/1/0434/1386/4604/files/raymond_pallet_jack.pdf
    • https://cdn.shopify.com/s/files/1/0431/7426/4993/files/iconics_genesis64.pdf
    • https://cdn.shopify.com/s/files/1/0435/6086/1845/files/19848444961.pdf
    • https://cdn.shopify.com/s/files/1/0446/6235/8179/files/best_answers_to_interview_questions.pdf
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/milopumibizomefepumam.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3602/files/wexonewabefiwine.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_off00004877.bin
7f2e618024dc6fd599affb130752ec2c451e2ebc111064094191e1286dc0bff6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4877 5432 bytes
font_01_sfnt_off00005ad9.bin
70f10d5875da979195cea0815b3a76e89cfb027ecf2053df0ccb682f06143d0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD9 10740 bytes

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