Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ff5dac8fa45cc8d…

MALICIOUS

PDF

61.2 KB Created: 2020-08-11 19:21:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa24337ba2b5f15d359e9e0a6f2c6455 SHA-1: e0e3602e7ec04f88b0d908ab31b9485b632202f5 SHA-256: 2ff5dac8fa45cc8d31fb96f96e3ecd4ed4bb3af3af3b3bb06fd26aac8f6ae8c4
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=cationic+surfactants+pdf'. Additionally, it features a PDF link farm with numerous external links, many hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same malicious URL and several other Shopify-hosted PDF links, suggesting a coordinated effort to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.ru/pify?keyword=cationic+surfactants+pdf In PDF document text
    • http://ruzixel.tikicab.com/uploads/1/3/1/1/131164250/sijiwitevadiruleti.pdfIn PDF document text
    • http://files.dinghyfever.com/uploads/1/3/1/6/131607407/4e3d6a8c.pdfIn PDF document text
    • http://files.bernerayhistorical.com/uploads/1/3/1/4/131405948/153e2343c42a846.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9191/7989/files/aluminium_fabrication_materials_names.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7931/8166/files/cms_1500_fillable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2328/5928/files/zatuxare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0600/9255/files/50851747359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0586/9208/files/31561073768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/jatoburimisaxetisafisan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7433/0517/files/wolf_team_hack_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7090/6780/files/45552015688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/36477515378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66916333827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/45472041349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5526/8519/files/44824130654.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a539.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA539 4904 bytes
SHA-256: a570b569abb336ac68176304877e98583cc33c9d5b95f8709323b276e73d52dd
font_01_sfnt_off0000b5eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5EB 10636 bytes
SHA-256: 85379869c3093310ba7afd938bc6e28af051f67b1d8def0adf5365262e660990
font_02_sfnt_off0000da32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA32 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

Open this report in the interactive analyzer, or submit your own file for analysis.