Malicious PDF — malware analysis report

Static analysis result for SHA-256 e66200764fa73b2f…

MALICIOUS

PDF

47.8 KB Created: 2020-08-24 10:46:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6797efd62a72beb72d44bf605ef12cd6 SHA-1: 75cf772b182d0f7267a7dd594309bc04458f3490 SHA-256: e66200764fa73b2f673d4d3e6744ad41615863fc66c89e58268c69cae713dbf5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded links that are part of a link farm, with one specific URL identified as a malicious redirector. The document body, though partially corrupted, contains text suggesting it is a 'job cost sheet excel template', which is a common lure for phishing or malware delivery. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the redirection to malicious infrastructure, and 'PDF_SEO_LINK_FARM' indicates a large number of outbound links, likely for SEO manipulation or to distribute malware. The presence of multiple Shopify URLs, some confirmed benign, suggests an attempt to blend malicious links with legitimate ones.

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=job+cost+sheet+excel+template In PDF document text
    • http://files.empyreanwinds.com/uploads/1/3/2/6/132681026/c48331d73.pdfIn PDF document text
    • http://files.americanresistancesevilla.com/uploads/1/3/2/6/132681769/1627700.pdfIn PDF document text
    • http://files.gracelaurent.com/uploads/1/3/1/8/131872070/3967525.pdfIn PDF document text
    • http://wevino.animachristiretreats.org/uploads/1/3/0/7/130776008/4424f.pdfIn PDF document text
    • http://files.maximevaporator.com/uploads/1/3/1/0/131070918/8872208.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/1/0430/7661/6346/files/zuxagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0709/9558/files/sadagekukupizivokaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8815/0690/files/non_chronological_report_writing_year_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3096/9511/files/33987505854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/70272891467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5226/9717/files/65582054210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/mythology_stories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/21830882212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/denajakigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7011/9318/files/bob_s_steak_and_chop_house_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76106621034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/ice_candy_man_novel_download.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D5 4908 bytes
SHA-256: 8783b51389afd56b10cae97a5ca851fc79ee06fbb4484729d9b71819e5664837
font_01_sfnt_off0000817b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x817B 10192 bytes
SHA-256: ae49e33e5abe44bfc1257ac36f4d09d0edceac1d5265bad5317e5a30b851dae3
font_02_sfnt_off0000a461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA461 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3