Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6ef583459c94afa…

MALICIOUS

PDF

39.4 KB Created: 2020-08-03 05:58:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1fc00c2c95fac73b0523b2e0d548a6f1 SHA-1: 83bec2556badbc529f8a562a77c4450d495a229b SHA-256: d6ef583459c94afa479bf91fe15d2be6778a0c4ff6bd567519d225bf2b34a3ff
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=sharepoint+2010+tutorial+pdf'. This URL is presented within the document body, disguised as a SharePoint tutorial. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=sharepoint+2010+tutorial+pdf In PDF document text
    • http://files.ximenanelson.com/uploads/1/3/1/3/131379117/5358043.pdfIn PDF document text
    • http://files.evandusenportfolio.com/uploads/1/3/1/4/131437676/kubuzoletuzuki.pdfIn PDF document text
    • http://files.alexanderwhitman.com/uploads/1/3/0/9/130969097/gonazifutogijuraw.pdfIn PDF document text
    • http://files.homeorganic.com/uploads/1/3/0/7/130739067/zoradewawab.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/1/0434/4601/0022/files/68302782744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8370/1151/files/96463102198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4718/8640/files/63640736169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3975/9259/files/73201742341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4414/1218/files/wopuvirexebugitodeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0255/8621/files/65031672197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5198/3772/files/49091241251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1455/3763/files/dexobosupomuxerizebijavik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4885/2891/files/bofekifevupaxoxoguzidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7144/6939/files/pujexumijemanigakoku.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_off00004f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F62 5260 bytes
SHA-256: 874610603e2929516a7d74fc3dc8d738fb6c4547a3415b5956574a8ff2f1145b
font_01_sfnt_off00006133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6133 9816 bytes
SHA-256: 7a23c9f121f557690c59e13b7ed19eb8cbfd699b4b13e9f493758e2aef826e5f
font_02_sfnt_off000082be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82BE 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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