Malicious PDF — malware analysis report

Static analysis result for SHA-256 d00a623c6b45be94…

MALICIOUS

PDF

68.4 KB Created: 2020-07-30 22:24:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df71c2e359c89c8372052fa9157710ec SHA-1: 0a79fad345a9c9e0bd6b4d2b6f4fc5fc92cacf70 SHA-256: d00a623c6b45be9477c031a758809a434d6ff05e290cdc5f1535c7afae4bf846
194 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link and a large number of external links, indicating a link farm. The primary malicious URL identified is ttraff.ru, which is used to redirect users. The document body contains metadata suggesting it was generated by wkhtmltopdf, and the overall structure and link farm behavior are consistent with SEO poisoning or phishing lures.

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=equilibrium+constant+problems+and+solutions+pdf In PDF document text
    • http://files.thatveganjunkie.com/uploads/1/3/0/7/130738779/5097956.pdfIn PDF document text
    • http://files.daedreamnh.org/uploads/1/3/1/4/131454523/wigijaradu.pdfIn PDF document text
    • http://files.metalmeltdown.com/uploads/1/3/0/7/130775755/36f932b68a.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/1/0433/6254/9910/files/juwunul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xeniwepisovera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0461/7119/files/rolag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/pikipezarodalutugidip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0827/8171/files/48131383956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3365514284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5547/1006/files/winitadorubefesilamapudon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/ganiwesebip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5570/2425/files/86343379528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8922/2037/files/87720909195.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off0000adc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADC4 5408 bytes
SHA-256: da1522f6ddc802da085e957f21f1db7d10907d013a550551b2e62578a2d6da67
font_01_sfnt_off0000bffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFFE 14984 bytes
SHA-256: 3b3cea22c3064868867932fd656988bb3408e94b12b0cca9f33e31e43a7786e0
font_02_sfnt_off0000ef0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0A 16060 bytes
SHA-256: ae97ebdbf5cb6679ee3ae7f6f8963da9ec2437ada1f672a33085bc8cbe806833

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