Malicious PDF — malware analysis report

Static analysis result for SHA-256 05126464b98453f1…

MALICIOUS

PDF

39.6 KB Created: 2020-08-13 14:51:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c92e11b61b44edc406b9bd430e1e2c2 SHA-1: ac404f5617d8141987c2bfcfc516f63c1a181fcc SHA-256: 05126464b98453f107544595b9d77cc6792ad786513cda5abc7191fa992be4e3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, many pointing to a redirector service, suggesting an attempt to drive traffic to malicious sites. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs, particularly the one leading to 'ttraff.ru', confirms a redirection attempt. The document body, though partially corrupted, contains the URL 'https://ttraff.ru/wb?keyword=subtraction%20of%20fractions%20worksheets%20grade%204', indicating a lure related to educational materials.

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/wb?keyword=subtraction%20of%20fractions%20worksheets%20grade%204 In PDF document text
    • http://jeguwafa.sawvc.com/uploads/1/3/0/9/130969754/3951693.pdfIn PDF document text
    • http://subajin.secahr.com/uploads/1/3/0/9/130969573/7f99a89e36.pdfIn PDF document text
    • http://jigov.milfordscarlethawks.com/uploads/1/3/0/9/130969060/56c00a4ce99.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/1/0439/3995/4856/files/jupitonibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4494/4542/files/82606878930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0789/3919/files/nogalurajof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/tirulofepivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1615/7344/files/nuzilivod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/96601299482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3826/0903/files/624738445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0254/1726/files/wumawikisufazuboxukamegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0249/8970/files/bracing_masonry_walls_during_construction.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 1

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_off00005b97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B97 5740 bytes
SHA-256: 5492183a16c6306ddcfae5e1c42812a5b21c6009cc5d99eb971ebfecba7f24ec
font_01_sfnt_off00006f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2F 10048 bytes
SHA-256: 2ac3da2bb9f52b825c8c53f3c24facf09ebac54cb989955d1615102d8484536d

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