Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f088f0fcf793a2f…

MALICIOUS

PDF

43.2 KB Created: 2020-08-08 06:31:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90a8a18b1ae7a3517fe62e225457b434 SHA-1: 661badeeab3aef2d68d8e6994be440cba7b4b88d SHA-256: 8f088f0fcf793a2fdf7e6b5ecfc7814250afadacfbf91cd5b6a60dc5f1aefa17
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links redirects to a known malicious redirector infrastructure at 'ttraff.com'. This indicates the document is designed to lure users into clicking malicious links, likely as part of a phishing or scam campaign.

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=capacitores+en+serie+y+paralelo+pdf
    • http://files.athicketoftales.com/uploads/1/3/2/7/132710601/pekuzolavokek.pdf
    • http://files.yiannchen.com/uploads/1/3/1/6/131606486/nebivulapa_zavekenanis.pdf
    • http://files.agmakeup.com.au/uploads/1/3/0/8/130874368/9685425.pdf
    • http://files.moonriverdesigns.ca/uploads/1/3/0/8/130814258/lukususa-lonifojod.pdf
    • https://cdn.shopify.com/s/files/1/0441/3181/1480/files/jovirafiwojemerozerudedi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2485/files/disclaimer_of_opinion_audit_report.pdf
    • https://cdn.shopify.com/s/files/1/0435/5863/3627/files/foluvup.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19194700937.pdf
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/18226180114.pdf
    • https://cdn.shopify.com/s/files/1/0437/1618/2166/files/sadesolef.pdf
    • https://cdn.shopify.com/s/files/1/0431/7826/2689/files/gujoles.pdf
    • https://cdn.shopify.com/s/files/1/0437/8414/3010/files/zumupasu.pdf
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/35651341426.pdf
    • https://cdn.shopify.com/s/files/1/0432/0346/1283/files/labuxuworifesozovapuwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/rejiv.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_off00006829.bin
eeba5e017c1475df02471a4d07e6495c1fe0397658e3a00acad645edf8b3c47b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6829 5156 bytes
font_01_sfnt_off000079c3.bin
05db7f079aec61db4157281d1b03b6d973a7b122b8a0a15b788021fa2d5d1947		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79C3 11072 bytes

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