Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0befe1c34630758…

MALICIOUS

PDF

36.5 KB Created: 2020-08-21 02:26:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e4b248ec0d975fbaccaa5947159eb8f3 SHA-1: abe00483efc042bf5c3f4f894bbddaffd269889d SHA-256: e0befe1c346307585ddea379d3a3d6ac7665908af86fa81a9fe4ef84f475ebf3
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) and are presented as a link farm. The document body, though heavily obfuscated, contains references to URLs that are likely part of this link farm. This indicates an attempt to direct users to malicious infrastructure, potentially for further exploitation or phishing.

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=worksheet+works+geography+of+china In PDF document text
    • http://files.mrhso.org/uploads/1/3/0/7/130738559/b04139ca976590.pdfIn PDF document text
    • http://bokafa.hoclincolnorders.com/uploads/1/3/0/8/130814311/riwuxelojifaf.pdfIn PDF document text
    • http://gavukulo.mahoneyhouse.com/uploads/1/3/1/3/131383483/1d27b81c1baa.pdfIn PDF document text
    • http://files.bipocwhoskate.com/uploads/1/3/0/8/130814238/2f2fe.pdfIn PDF document text
    • http://files.payitforwardlongisland.com/uploads/1/3/1/0/131070872/guliwut.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/1/0433/8617/5651/files/list_of_automobile_industry_in_pune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7188/0870/files/tebikijesasamipekajew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/taxunelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4845/9675/files/handball_bundesliga_spielplan_18_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9902/9655/files/apc_accountancy_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5693/9676/files/zalawisimiwikaxafimilerod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9548/1750/files/83221777645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/xodenipefax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7333/1609/files/26741603945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3410/7286/files/19681660781.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 6

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_off000050b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50B0 5516 bytes
SHA-256: be07c71a260e2b11a7b561960f7ef3f50c3d800014d2826508306c7983b11a02
font_01_sfnt_off00006398.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6398 9920 bytes
SHA-256: 0efda7fe927dfeea2862c5a489447a6cfdbbd38704991c85313256535f1ebd3c

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