Malicious PDF — malware analysis report

Static analysis result for SHA-256 2004ce16a7740469…

MALICIOUS

PDF

42.1 KB Created: 2020-08-11 02:09:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ca0482b6576bd5588a4df8e0cbdbbad SHA-1: b604a1a5eab64f2564356dc71b9eb5138e0b107a SHA-256: 2004ce16a7740469257845ea89fd6ab99dad8c2dd483c9e7efb62ae4dd905386
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The PDF also contains a large number of links to other PDFs hosted on Shopify, suggesting a link farm or SEO poisoning attempt to drive traffic to malicious infrastructure. The document body itself is heavily obfuscated and contains the malicious URL.

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/wb?keyword=molusco%20contagioso%20pdf
    • http://files.tilliesnevada.com/uploads/1/3/1/3/131379612/xapixivote-pipugu-neruxesivalu-wifuf.pdf
    • http://tijad.sharonpricejames.com/uploads/1/3/0/7/130739783/0484dba63daf93.pdf
    • http://dizonasu.vcoonrodphotography.com/uploads/1/3/0/7/130739204/bd2ad969c.pdf
    • http://files.ethiopremier.com/uploads/1/3/2/7/132712315/jixusibadanidife.pdf
    • http://files.mindfulmoves.net/uploads/1/3/1/8/131856907/59ca90e4374e80f.pdf
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/78584195009.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/34727945748.pdf
    • https://cdn.shopify.com/s/files/1/0430/9162/4097/files/liwetudazufitibu.pdf
    • https://cdn.shopify.com/s/files/1/0447/8818/7293/files/the_dream_thieves_epub.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2255/files/calculus_best_books.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/senarudiravuvedawuguwoda.pdf
    • https://cdn.shopify.com/s/files/1/0452/7898/6402/files/atmospheric_science_second_edition_an_introductory_survey.pdf
    • https://cdn.shopify.com/s/files/1/0435/1275/8426/files/6000488907.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80278007767.pdf
    • https://cdn.shopify.com/s/files/1/0439/9860/9566/files/gewelewa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8973/files/43829603075.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_off000063b6.bin
8a2026994126cf9a3fc3374f390027c752c1cdbf4051e8c83ae39230c45f9819		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B6 5232 bytes
font_01_sfnt_off000075a3.bin
0171ecc31b882ed8c61912625c9647f5f04974ae4ecf8cae62cc5a1b92a62f88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75A3 11264 bytes

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