Malicious PDF — malware analysis report

Static analysis result for SHA-256 e108407c7b02239f…

MALICIOUS

PDF

62.4 KB Created: 2020-09-21 06:23:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cddadf69cd2be173bffe39214ae292c4 SHA-1: e7d59c93868a7c0c666035524156b6628cbd1055 SHA-256: e108407c7b02239f6f2637a0f9f7e10af44e8ea7ba29d6372c357cdbc7f85075
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a high ML score and the presence of numerous embedded links. Several of these links lead to PDF files hosted on various domains, indicating a link farm or SEO manipulation tactic. One critical heuristic identified a link to known malicious redirector infrastructure, suggesting an attempt to lure users to malicious content. No scripts were extracted, and the document body contained mostly garbled text and metadata.

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.club/wix?keyword=what+does+covet+your+neighbor+mean In PDF document text
    • http://files.creatingrounds.com/uploads/1/3/0/7/130776276/jowemu.pdfIn PDF document text
    • http://files.jehphotography.net/uploads/1/3/2/8/132814906/8024579.pdfIn PDF document text
    • http://mufodes.westfordfire.com/uploads/1/3/1/8/131871816/relivido-betodi-kudotegaxoti-jogig.pdfIn PDF document text
    • http://files.cobusinessadvisors.com/uploads/1/3/1/0/131070115/e9ea4914fa6d.pdfIn PDF document text
    • http://files.bearpawsbernedoodles.com/uploads/1/3/1/4/131408099/38504d9e69638.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/1/0432/9766/9278/files/chicken_life_cycle_worksheet_preschool.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/kdigo_anemia_guidelines_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6684/1505/files/andhra_jyothi_telugu_news_paper_anantapur_district_edition_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2503/8497/files/64023133417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5318/5174/files/dafilojibeduxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/88_chevy_truck.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6742/4416/files/68743732916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/61548283391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/fupinegev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9550/7622/files/sinifaxotuwozebubebukukit.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB665 5636 bytes
SHA-256: 42eb1c684cb76c8cf22728e18adf33e7b9ed0c5dbfa6dc0c990528a191a28979
font_01_sfnt_off0000c97a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC97A 10376 bytes
SHA-256: 745b7f2eddd262dbf8b53772f57eb19ae5809b79ec2d9f44fededc81cf126553

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