Malicious PDF — malware analysis report

Static analysis result for SHA-256 e197d4b4aa6e5e55…

MALICIOUS

PDF

39.5 KB Created: 2020-08-19 22:43:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b6b905f03f2c334b965657a01dc19a0 SHA-1: 93911844c322e04a926e6ea92447c4a765bbbc90 SHA-256: e197d4b4aa6e5e55c550131d6dae424c321a00fe89c018d176d3addaae545190
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'product cost sheet format in excel' and the malicious URL itself. This suggests a phishing attempt to redirect users to malicious infrastructure, likely for further exploitation or credential harvesting.

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=product+cost+sheet+format+in+excel
    • http://wujajig.templespringsbreakfastandafterschoolclub.co.uk/uploads/1/3/1/3/131398372/kolebewavativukeza.pdf
    • https://cdn.shopify.com/s/files/1/0431/3343/6066/files/65415625362.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.pdf
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/paxinuvejesenapilonozof.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/money_format_in_codeigniter.pdf
    • https://cdn.shopify.com/s/files/1/0433/4374/1083/files/bupepiloziwusitezosop.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/18608434672.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56655156305.pdf
    • https://cdn.shopify.com/s/files/1/0438/3657/1805/files/business_agreement_letter_sample.pdf
    • https://cdn.shopify.com/s/files/1/0434/7379/7285/files/dogeduli.pdf
    • https://cdn.shopify.com/s/files/1/0449/5792/5544/files/battle_royale_manga_mega.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_off00005de6.bin
b91b089b755670434de7167209a119ec9d198fa08e53db2bdc185ffbeaa1052e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE6 5332 bytes
font_01_sfnt_off00006fde.bin
f781617fdbb15cf89b48c854025ddc0a327aca56b1ab279e884f89896f11b163		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FDE 9928 bytes

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