Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9aa6dae4766d36e…

MALICIOUS

PDF

42.9 KB Created: 2020-08-15 05:26:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8afb3e96f872453633c521bc86d5d4ed SHA-1: fcc8fdcb0a05b52b5aa3133f84b1df97f434b78b SHA-256: a9aa6dae4766d36e1c2584df9ffc87f0996366b38a43c6a45881b245b79a3a53
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=geolocation+app+template'. The document body, though heavily obfuscated, contains references to 'geolocation app template' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous links to other PDFs hosted on Shopify indicates a link farm strategy to improve search engine ranking for malicious content.

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.ru/pify?keyword=geolocation+app+template
    • http://files.encnonprofits.org/uploads/1/3/1/4/131436967/futefojo-midalekexo-vadupi-gelipobuvopidij.pdf
    • http://dezuwe.folkestonechoralsociety.org/uploads/1/3/2/7/132740850/2d09bbb.pdf
    • http://kokulun.mychoice411.com/uploads/1/3/0/9/130969754/9dd05c1479e8.pdf
    • http://files.lockehavenfarm.com/uploads/1/3/1/3/131383602/kenuduzukukevit.pdf
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/kezizuberuli.pdf
    • https://cdn.shopify.com/s/files/1/0431/2426/1026/files/rebukepi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/47727044090.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45865267400.pdf
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/9615795643.pdf
    • https://cdn.shopify.com/s/files/1/0430/2667/7913/files/detegoduxuvuga.pdf
    • https://cdn.shopify.com/s/files/1/0439/2484/8795/files/lugavijetu.pdf
    • https://cdn.shopify.com/s/files/1/0436/4356/8278/files/precalculus_with_limits_larson.pdf
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/43563061706.pdf
    • https://cdn.shopify.com/s/files/1/0432/8072/8224/files/21868205658.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_off00006ba1.bin
cbda90c19f6d2fb0da3d8236c12b52562530880ffc38d7f79cfc42e6c2288701		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA1 4836 bytes
font_01_sfnt_off00007c05.bin
08f32b1865cf347933f5cad38dd4b7ced1022faa01803ced1b17e8915fe03145		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C05 10264 bytes

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