Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd171e8c95e15704…

MALICIOUS

PDF

43.4 KB Created: 2020-08-19 01:20:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77d3115335e1d8048618d984ca663710 SHA-1: 1f8f291906d9e778c6bac5ab45e5a809f4670d46 SHA-256: fd171e8c95e157048bd501573fe72efeb22257288f1eda441fa052334c711699
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, specifically 'https://ttraff.cc/pify?keyword=business+plan+pizza+restaurant+pdf'. This indicates the document is designed to redirect users to malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains hosting other PDFs. The document body, though heavily obfuscated, contains references to 'business plan pizza restaurant pdf' and the malicious redirector URL, reinforcing the lure.

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.cc/pify?keyword=business+plan+pizza+restaurant+pdf
    • http://files.christiangreenlmt.com/uploads/1/3/0/7/130775862/4a8f1bc8.pdf
    • http://zokativ.zephyryoganj.com/uploads/1/3/0/7/130739783/1279219.pdf
    • http://files.fausthomes.com/uploads/1/3/1/6/131636678/devono.pdf
    • http://kutojigew.totalcheerperformance.com/uploads/1/3/1/4/131405927/bafarado-fixapumugijinev-lupakudopem.pdf
    • https://cdn.shopify.com/s/files/1/0438/1900/8160/files/29740427217.pdf
    • https://cdn.shopify.com/s/files/1/0436/2724/9826/files/moledawotosiserofora.pdf
    • https://cdn.shopify.com/s/files/1/0436/4910/6073/files/12968196128.pdf
    • https://cdn.shopify.com/s/files/1/0431/4431/5029/files/79722652057.pdf
    • https://cdn.shopify.com/s/files/1/0444/5110/2887/files/vazuxizugogejijetuzujibi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2483/4982/files/nurixiloti.pdf
    • https://cdn.shopify.com/s/files/1/0432/7328/9894/files/grammar_exercises_for_class_4.pdf
    • https://cdn.shopify.com/s/files/1/0437/7742/5565/files/85591994541.pdf
    • https://cdn.shopify.com/s/files/1/0446/1690/8963/files/70093601644.pdf
    • https://cdn.shopify.com/s/files/1/0437/6176/2455/files/mufonokewikufefazazo.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_off00006c86.bin
89da7e63d96b5d585994adb498a68935d6285e0b0666b34a13c673cf130453ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C86 5136 bytes
font_01_sfnt_off00007e0d.bin
a2208ec876a570ad5c5bd5ddf516e367d6ba1dca2d50b4d892a2e978d1e6c379		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0D 10272 bytes

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