Malicious PDF — malware analysis report

Static analysis result for SHA-256 8935d591cc668d1e…

MALICIOUS

PDF

74.7 KB Created: 2020-07-25 00:26:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e4ad8348cf31bbf128de391b260a6ee SHA-1: 2318260c28cbab1f50c582566f8292cccae1c56d SHA-256: 8935d591cc668d1e5fbc3a4cc69f3ec81c3bbe01fcfdc65dea3689a5bc08ca57
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to Shopify domains but ultimately redirect to a malicious URL on 'ttraff.com'. This indicates a link farm or redirection attack designed to lead users to malicious content. The document body is heavily obfuscated, but the presence of 'salmos biblia latinoamericana pdf' suggests a lure related to religious texts.

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=salmos+biblia+latinoamericana+pdf
    • http://files.tpccommunicationsaustin.com/uploads/1/3/1/1/131164174/tirimulomunam-jerabodutij.pdf
    • http://files.voorheesrotarydinnerclub.org/uploads/1/3/0/7/130739450/61c06.pdf
    • http://files.outandplay.com/uploads/1/3/2/8/132814276/gekedetozeduz.pdf
    • http://files.priscilajamison.com/uploads/1/3/1/8/131856624/lereve-dozoribelitike.pdf
    • https://cdn.shopify.com/s/files/1/0438/3218/0893/files/lomozisovazezedetuxaxi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2886/3397/files/29537097969.pdf
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/fuwabug.pdf
    • https://cdn.shopify.com/s/files/1/0433/7719/7221/files/pevotirovigefupepivopize.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/guzuzonizobon.pdf
    • https://cdn.shopify.com/s/files/1/0429/3551/7337/files/nibibegado.pdf
    • https://cdn.shopify.com/s/files/1/0431/9900/4831/files/vojapakupudananew.pdf
    • https://cdn.shopify.com/s/files/1/0437/1090/6520/files/wipuga.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/gegetibemugudumi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2767/6829/files/gisesilirader.pdf
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/waponurunitarekenaru.pdf
    • https://cdn.shopify.com/s/files/1/0432/0939/2285/files/38463635972.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_off0000e5ca.bin
852a5af2532d6f82a91db11f6b7657ab90b089dd00ab34a8d10ef972b2b5edbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5CA 5332 bytes
font_01_sfnt_off0000f7be.bin
575c61c51ded722aab6296f22c1756bbe5d04322c6e9ba32b12ae66394082d4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7BE 11608 bytes

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