Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee5cca5374908894…

MALICIOUS

PDF

63.1 KB Created: 2020-08-10 00:46:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a5393fb7585a80ada233e5c6aaf29173 SHA-1: d7c131ea90738f9ef0b5345c7d7c093fb9189c5c SHA-256: ee5cca5374908894523280f664621973bc04bb696ae590b1aa332ad44301e6ac
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to external PDF files hosted on various domains. One of these links, 'https://ttraff.ru/pify?keyword=who+s+afraid+of+virginia+woolf+albee+pdf', is identified as a known malicious redirector. This suggests a link farm or redirection tactic to obscure the ultimate malicious destination. The ML classifier also strongly flagged this PDF as malicious.

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=who+s+afraid+of+virginia+woolf+albee+pdf In PDF document text
    • http://zeleg.heyhill-land.com/uploads/1/3/0/8/130814328/d0f71dea7f.pdfIn PDF document text
    • http://jorakuje.mellowinthemeadow.co.uk/uploads/1/3/0/8/130874457/fipuluvugevabo-samitir-pogemot-nozubud.pdfIn PDF document text
    • http://files.comforttrainer.net/uploads/1/3/2/6/132681002/4312007.pdfIn PDF document text
    • http://files.americanacademicconnections.com/uploads/1/3/0/7/130776745/noniro_masisodi.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/1/0431/0184/7708/files/adp_pay_stubs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9080/2856/files/4th_grade_math_workbook_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7957/3414/files/10760121108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9629/4051/files/32985809517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/xopefuxuzegebopagowixeguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7679/7081/files/mixogeriwawixebapadobus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7763/2154/files/dinifazuriraredorazowogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5662/5829/files/47508713062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9348/9832/files/20728565846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4463/2738/files/4th_grade_common_core_math_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9101/6347/files/cabergolina_dosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/93847602340.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 8

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_off00007a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A88 19804 bytes
SHA-256: 384dcd45f3cdfce7246732782c60a2bcdc9c935700d502d285592a40feaf19ea
font_01_sfnt_off0000b8d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8D5 5608 bytes
SHA-256: 284085dcdf13d9fc9a796a3962d20b5f82bc1a14f18311a9b8441776409dc1be
font_02_sfnt_off0000cc09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC09 10260 bytes
SHA-256: 0b2ae346c363f07231b027271820f2f9dbda19f2c27eecdcbe3af7d9d6e65611

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