Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6a73c146b78dce0…

MALICIOUS

PDF

35.1 KB Created: 2020-08-02 23:33:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5748f45ce1534077445e6e5ef34bef95 SHA-1: d65b349afa4a146a9c9ea6916c4edae2a4b6941f SHA-256: b6a73c146b78dce03d9aabb39d06d29b56498dc4e0e27b7b21541e42c1f2890d
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO spam and phishing. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=sedona+10+day+forecast'. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting an attempt to drive traffic to malicious infrastructure. No scripts were extracted, but the presence of the redirector link is a strong indicator of malicious intent.

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=sedona+10+day+forecast
    • http://files.stresswiseatwork.com/uploads/1/3/1/8/131856162/zejuke-fotifudegib-wudoz-fimuruz.pdf
    • http://files.rotarykimberleysouth.club/uploads/1/3/0/7/130739500/163970.pdf
    • http://files.sasadvantage.org/uploads/1/3/0/8/130813818/2702800.pdf
    • http://files.ccjsermonstorage.org/uploads/1/3/1/0/131070230/rakilus.pdf
    • http://files.dvorajewelrystore.com/uploads/1/3/1/3/131398308/kewalufufanaja.pdf
    • https://cdn.shopify.com/s/files/1/0432/2859/4336/files/86232893970.pdf
    • https://cdn.shopify.com/s/files/1/0432/0568/9499/files/palikej.pdf
    • https://cdn.shopify.com/s/files/1/0437/7742/5565/files/tilepelelafobolezak.pdf
    • https://cdn.shopify.com/s/files/1/0439/0024/0024/files/kideruxopenimuj.pdf
    • https://cdn.shopify.com/s/files/1/0436/1817/3086/files/kufewovovopapuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/37558120076.pdf
    • https://cdn.shopify.com/s/files/1/0440/4091/3046/files/jibarujotufim.pdf
    • https://cdn.shopify.com/s/files/1/0432/2073/0011/files/samalijatitegesilof.pdf
    • https://cdn.shopify.com/s/files/1/0436/4081/5774/files/21216207070.pdf
    • https://cdn.shopify.com/s/files/1/0429/6946/4991/files/79795675318.pdf
    • https://cdn.shopify.com/s/files/1/0433/8286/6072/files/jelabezaluki.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_off00004dbf.bin
f335a4c7159bf6c56c87ef5e7290dc61f9b8595ddb7e679eed96e2be3a3424ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DBF 5380 bytes
font_01_sfnt_off0000602a.bin
7eb26099ed85ce5e108baa6e2cfbe8a653ff115a1e0bc827c749790f59d01587		 pdf-font-stream PDF embedded font (sfnt) at offset 0x602A 9252 bytes

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