Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed30ecc6884df840…

MALICIOUS

PDF

42.3 KB Created: 2020-08-25 00:57:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fa5376b1d011f5f0246dad266e57f35 SHA-1: d2f63ac9f297ff10fe1ca00e62fa38718e78b5b7 SHA-256: ed30ecc6884df8405476431878bff755a8b557798fb516167b34842a5c3cf7e5
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=hysteroscopic+guided+polypectomy'. This URL is likely part of a phishing or scam campaign. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse. While no scripts were extracted, the presence of the malicious redirector and the link farm structure strongly suggest a malicious intent to lure users to harmful 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.cc/pify?keyword=hysteroscopic+guided+polypectomy
    • http://files.israelitesunite.com/uploads/1/3/1/8/131856046/7670545.pdf
    • http://files.anythingforthechildren.com/uploads/1/3/1/1/131163976/nisubivutiva-nidibev-suwukivaji-rilemabulotozim.pdf
    • http://gebefe.scorrybreac.org/uploads/1/3/0/8/130813694/61e005ba51741.pdf
    • http://files.schematherapycanberra.com.au/uploads/1/3/1/3/131383771/76303e.pdf
    • http://puvugubu.marthaannepalmer.com/uploads/1/3/2/8/132814664/a38fe18668f4f.pdf
    • https://cdn.shopify.com/s/files/1/0439/4637/7374/files/17201421633.pdf
    • https://cdn.shopify.com/s/files/1/0432/3164/1762/files/83540262219.pdf
    • https://cdn.shopify.com/s/files/1/0429/1058/0903/files/gimasipabakifarumisit.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8503/files/amazon_web_services_architecture.pdf
    • https://cdn.shopify.com/s/files/1/0431/4411/8423/files/59164493065.pdf
    • https://cdn.shopify.com/s/files/1/0440/5084/1750/files/87739423692.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8919/files/berliner_platz_1_neu_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0438/4332/2016/files/personality_adjectives_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0435/9448/1821/files/administracion_de_recursos_humanos_mondy.pdf
    • https://cdn.shopify.com/s/files/1/0428/6378/8188/files/adverbs_of_place_and_time_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0447/8982/5687/files/ruby_one_liners.pdf
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/botudifofefofovikavuzatid.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_off000066d5.bin
20b6dc4bfa00023c945d265860cdaa93653e6ed0c58d791e3664a60c25b1b178
pdf-font-stream PDF embedded font (sfnt) at offset 0x66D5 5244 bytes
font_01_sfnt_off0000789f.bin
b973b203a5e24580985532539fe9a2599ec2440c82381ce43d92ce22b4e382cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x789F 10528 bytes