Malicious PDF — malware analysis report

Static analysis result for SHA-256 3052783f4b348633…

MALICIOUS

PDF

34.3 KB Created: 2020-08-28 17:22:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 431cffa2c3f25d91abd0f02aa9f5137c SHA-1: 62d5fa8fa4040b7bfc3e329cc90d3ce2e2c37c6a SHA-256: 3052783f4b348633f7f122e5dfdbe1c8a832aa26cbdff1ca21b0d60789dbc1db
120 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector, suggesting a lure to a malicious site.

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.cc/pify?keyword=five+nights+in+anime+jumpscares
    • http://lulaxaga.clairesdanceacademy.com/uploads/1/3/1/1/131164211/pozozivatun.pdf
    • http://files.thegamblingclinic.ie/uploads/1/3/2/6/132682802/sevejikesi.pdf
    • http://sutede.easecuritypatrol.com/uploads/1/3/1/3/131380429/jizewesetube.pdf
    • http://ledifaro.simplycreativetreasures.com/uploads/1/3/1/6/131606271/25a91937a.pdf
    • http://files.aninvisiblethreadnovel.com/uploads/1/3/2/6/132681863/tefurolim-pegovezoluvidig-gesiberek.pdf
    • https://cdn.shopify.com/s/files/1/0433/9836/5340/files/renadolizewukotadapugab.pdf
    • https://cdn.shopify.com/s/files/1/0428/6336/2204/files/jamesuxetovizi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1518/4295/files/49212018380.pdf
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/39158680294.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nalajenoderemomepofelefa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0371/5481/files/dusefosutewe.pdf
    • https://cdn.shopify.com/s/files/1/0435/2763/5096/files/statistical_process_control_tools.pdf
    • https://cdn.shopify.com/s/files/1/0429/2077/1751/files/35608306878.pdf
    • https://cdn.shopify.com/s/files/1/0434/0783/5303/files/lejirironawizedavimoli.pdf
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/jivales.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_off00004952.bin
804dffb09e53732869d79724a14b35a7104f688c97a9c19b52b7f48516308340		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4952 5408 bytes
font_01_sfnt_off00005b97.bin
e7ed481e5b008f461bdf6c57f0d972f0ca84b90b42f1c3c497bf7d5aa1dc79c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B97 9596 bytes

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