Malicious PDF — malware analysis report

Static analysis result for SHA-256 496710354511be3c…

MALICIOUS

PDF

52.0 KB Created: 2020-08-09 09:03:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 416b0867c503d437c008648ec5bc3dbf SHA-1: 102296f03da596901d93fb2b061effc1897f2e0d SHA-256: 496710354511be3c3339b48294b5d51ca3a10361559ca4e5b67166454e116c1b
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'definition of communication pdf file' and includes the malicious URL. This suggests a phishing attempt to redirect users to malicious infrastructure.

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=definition+of+communication+pdf+file In PDF document text
    • http://files.idleminded.com/uploads/1/3/2/6/132695568/takipedexuke_dobuvemelumoma_ritojet.pdfIn PDF document text
    • http://xiweba.afesestatesales.com/uploads/1/3/0/7/130775403/7291777.pdfIn PDF document text
    • http://files.skiowsa.com/uploads/1/3/2/3/132303035/xofolaborikifadavuz.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/1/0432/6172/2788/files/58208684287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7883/5606/files/tezinoduzume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0682/7428/files/gejagixite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5007/2224/files/56783690599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1421/8143/files/85987898481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1236/6231/files/38265943040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5395/1650/files/marathi_online_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/iam_751_boeing_collective_bargaining_agreement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/xuzuxolawakirobovukubida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3818/6394/files/importance_of_seeking_knowledge_in_islam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/47083076744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8907/5102/files/poxemomixuguka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8472/files/beposujoxe.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 2

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_off000081db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81DB 4908 bytes
SHA-256: 4130033ac5d9fbe9b19166d1c7053407a61f008397547fea255015e17cf2f644
font_01_sfnt_off0000927b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x927B 9960 bytes
SHA-256: 7432de7e82e0f3144e6cd264b898cc45ecac9d1b63f80f3946c8f2214b6ce980
font_02_sfnt_off0000b487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB487 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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