Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbe0758d6a352ae3…

MALICIOUS

PDF

43.9 KB Created: 2020-07-30 11:50:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78abba0ebce34cd151fe76aa9a9b28a3 SHA-1: 1d07697f471b44ba77b2c0d14e3703c899987d15 SHA-256: dbe0758d6a352ae346a8d10e831d1f03624f3c1cfa0da3fb9cc548cfb5db67c4
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links pointing to other PDF files, forming a link farm. The primary redirector URL, 'https://ttraff.com/pify?keyword=wedding+march+richard+wagner+pdf', is flagged as malicious, indicating an attempt to funnel users to potentially harmful content. The presence of a large number of external links, many hosted on Shopify, suggests a tactic to artificially inflate search engine rankings or distribute malicious content through seemingly benign hosting platforms.

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=wedding+march+richard+wagner+pdf
    • http://files.nextcow.com/uploads/1/3/0/8/130813777/vosevu_manemepamup_silozabuloso_medifefa.pdf
    • http://files.s1gkusa.com/uploads/1/3/1/6/131637177/5964660.pdf
    • http://files.corneliawoll.org/uploads/1/3/1/4/131453453/jikemugezetoz.pdf
    • http://files.nextcow.com/uploads/1/3/0/8/130813777/vosevu_m
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/bamizumidaledonanopiwum.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6232/files/badozakuwudowiketomixi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9603/9833/files/vorufijadenoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/3067/4597/files/31158837073.pdf
    • https://cdn.shopify.com/s/files/1/0439/6577/6030/files/banatop.pdf
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/56878689384.pdf
    • https://cdn.shopify.com/s/files/1/0432/8990/3264/files/97643528224.pdf
    • https://cdn.shopify.com/s/files/1/0431/8376/7713/files/53532987561.pdf
    • https://cdn.shopify.com/s/files/1/0432/7617/3472/files/riker.pdf
    • https://cdn.shopify.com/s/files/1/0431/7790/2241/files/1167899128.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/medade.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_off00006bc0.bin
53d3569b43737789fc86483afec3f26defcc7cce8daf369f52ea29b987462e94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC0 5064 bytes
font_01_sfnt_off00007ccf.bin
8e96df477466138c9ce1d6117c4b71f088b001c4204f7158bf39fd233cc9cee3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CCF 11488 bytes

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