Malicious PDF — malware analysis report

Static analysis result for SHA-256 47b424146ca6aeac…

MALICIOUS

PDF

41.8 KB Created: 2020-08-21 22:49:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 770984e34289ef44729098ce876448e8 SHA-1: dfaa784f4553147a3bcecb3504ce5f3d00c1a39a SHA-256: 47b424146ca6aeac1d8fda53b780850f08c8455521a6bb4bb0d6cb595607cf26
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to known malicious infrastructure, specifically a redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, suggesting a social engineering attempt to trick users into visiting the malicious site. The presence of a link farm further indicates an attempt to distribute 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.com/pify?keyword=mother+goose+nursery+rhymes+book+free
    • http://files.valuedlives.co.uk/uploads/1/3/1/3/131380569/rerufebusumerek.pdf
    • http://jalirov.motiontmb.com/uploads/1/3/0/8/130874330/wulabumunotet.pdf
    • http://files.detailingbyjonathan.com/uploads/1/3/0/8/130813975/lilevupebejuzugeg.pdf
    • http://mojonuto.thedesigninglibrarian.com/uploads/1/3/1/0/131070420/ferizi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/datufezon.pdf
    • https://cdn.shopify.com/s/files/1/0437/3990/6197/files/capitalization_and_punctuation_worksheets_4th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0432/0044/6626/files/www_myabilitynetwork_com.pdf
    • https://cdn.shopify.com/s/files/1/0435/7138/0383/files/58319709580.pdf
    • https://cdn.shopify.com/s/files/1/0434/2117/1864/files/poulin_chainsaw_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/1769/7437/files/gilorebevopopijotomotudo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3235/4727/files/bruchrechnung_addition_subtraktion.pdf
    • https://cdn.shopify.com/s/files/1/0429/7211/9199/files/46912740803.pdf
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/nasuboninor.pdf
    • https://cdn.shopify.com/s/files/1/0432/0965/4436/files/kaziw.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9605/files/buronitetitolob.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_off00006456.bin
e8b4870a39b5c906b4cf3de13193a1d15feede7db3088c2db2c17423161a3c32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6456 5248 bytes
font_01_sfnt_off00007626.bin
91d1150fd85819b601ef88de57f26219b0f434b63352e459ae693a47ae4ac764		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7626 10524 bytes

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