Malicious PDF — malware analysis report

Static analysis result for SHA-256 22b4af3d2942b569…

MALICIOUS

PDF

39.7 KB Created: 2020-08-23 13:52:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a7fb1a330e3c30db7a8168a7a1713b5 SHA-1: aa3139b3a94417bc94189c8ea9e47f4e096c1111 SHA-256: 22b4af3d2942b5692ff03ca68d5317ea505b8e657533933a73e74e8e3cf6d04e
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=calendar+template+fiscal+year'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though partially corrupted, contains the text 'Calendar template fiscal year' and the malicious URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted from this sample.

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.com/pify?keyword=calendar+template+fiscal+year In PDF document text
    • http://files.howemtnknives.com/uploads/1/3/1/8/131871556/roredufaweraje.pdfIn PDF document text
    • http://mozamer.ceremonymatters.ca/uploads/1/3/1/4/131413418/3a108375.pdfIn PDF document text
    • http://zorumosi.kandgmakeit.com/uploads/1/3/1/8/131856772/xadixa_bowaderogekosib.pdfIn PDF document text
    • http://files.learningdifferencesresourcegroup.org/uploads/1/3/0/9/130969440/6a5707e6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/estatuto_anticorrupcion_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89352644259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/46029361823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3342/0195/files/23037984892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6123/9192/files/melawibolopes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9231/8110/files/nojopupetifajerokiginut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotedijulukamani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7093/9541/files/substantive_audit_procedures_for_accounts_receivable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5344/9365/files/36471099482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2961/1171/files/quality_improvement_besterfield_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/kepokojix.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D83 5308 bytes
SHA-256: 682dd1adc40c33c5dea47cae98d8ef21b08ea0e094d43270876d9f304c5d3f14
font_01_sfnt_off00006f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F80 10172 bytes
SHA-256: 630e6d2f4008efd4e748cdb4aebc0614d90ecc03d0738a7b8a44cfa322ee7f3a