Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6f2857fc3c19942…

MALICIOUS

PDF

45.1 KB Created: 2020-08-10 06:57:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a80abba6f2098753558a6656cc070f8 SHA-1: 79aa2bb3cbceb96887280329a2f78aa203f17702 SHA-256: c6f2857fc3c1994259627b069f2b136370f3762b329de28a7a6e873322a6b0d3
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is likely used to obscure the final destination, which appears to be a PDF hosted on Shopify. The presence of numerous external PDF links, many pointing to Shopify, suggests a link farm or SEO manipulation tactic. No scripts were extracted, and the document body is heavily obfuscated, limiting further analysis of the immediate payload.

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=aromas+cafe+juhu+menu+pdf
    • http://files.chenowethbairddesign.com/uploads/1/3/1/8/131871894/kawal_fudomur.pdf
    • http://files.corecontemporary.com/uploads/1/3/0/7/130738657/bozomazizak.pdf
    • http://files.goodshepherdeyeclinic.org/uploads/1/3/0/8/130813906/kufalasetepe_tozonepa_finatexumol_vikaf.pdf
    • http://files.vickiofficer.us/uploads/1/3/0/7/130775033/8132972.pdf
    • http://files.aclwolfpack.com/uploads/1/3/0/7/130775813/4a59bd571a082.pdf
    • https://cdn.shopify.com/s/files/1/0434/0147/8311/files/jijisokamobibuxefebe.pdf
    • https://cdn.shopify.com/s/files/1/0447/1599/9386/files/curriculum_monitoring_and_evaluation.pdf
    • https://cdn.shopify.com/s/files/1/0435/8687/9647/files/duleb.pdf
    • https://cdn.shopify.com/s/files/1/0432/0352/6820/files/elegoo_mega_2560_the_most_complete_starter_kit.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/3445744720.pdf
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/kawesunevatezibovitida.pdf
    • https://cdn.shopify.com/s/files/1/0432/4222/5831/files/13800923812.pdf
    • https://cdn.shopify.com/s/files/1/0434/2857/7447/files/the_story_of_an_hour_free.pdf
    • https://cdn.shopify.com/s/files/1/0440/6683/2534/files/nimogol.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/gusinazefasixesazitufova.pdf
    • https://cdn.shopify.com/s/files/1/0430/2841/4618/files/tivamevuxodizaxekofenatix.pdf
    • https://cdn.shopify.com/s/files/1/0435/5994/4353/files/vadiladovozajonekek.pdf
    • https://cdn.shopify.com/s/files/1/0431/4179/1895/files/21019750391.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050ad.bin
25cf2e96cfa3944dedfa73a4863e912e104298b6bded813f1af1de59b94bfd94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50AD 5428 bytes
font_01_sfnt_off000062f7.bin
1374051dc1b1d79b0b8d0dc7b63cf34096403574d47c9d374230d48f7fc1f2b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62F7 2096 bytes
font_02_sfnt_off00006cab.bin
621290120446dcd33ae9ac3bb314a0ef85858f741371033b97cb762264319725		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAB 10160 bytes
font_03_sfnt_off00008f92.bin
2637c3a8639e267d08f1882ff3c59b1f49e3f9a069ed145f34ca7d5cb4e04c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F92 16904 bytes

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