Malicious PDF — malware analysis report

Static analysis result for SHA-256 da3476d2cc036ec9…

MALICIOUS

PDF

46.5 KB Created: 2020-08-18 13:06:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3729bbf1ed58eb576aeaa3c7cc40f827 SHA-1: 9b31d2dad597828400b8173bd9b8fea81cd17e68 SHA-256: da3476d2cc036ec945f36e4e3ca383b4d219dcc71564d64f4811fc289cf8ad0e
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one critical heuristic identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.ru/pify?keyword=archeage+darkrunner+guide', is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL and other PDF links, suggesting an attempt to lure users to external, potentially malicious, resources. 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.ru/pify?keyword=archeage+darkrunner+guide In PDF document text
    • http://bejad.strousehousesitting.com/uploads/1/3/0/8/130814161/7417778.pdfIn PDF document text
    • http://files.riptworkshops.com/uploads/1/3/0/8/130874254/52ef98d6f.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/1/0438/0255/8621/files/liselakemarekuforata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9570/3195/files/33593120511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1887/7085/files/7_personality_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7697/5768/files/nafudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kozaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0238/6856/files/google_music_library.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4632/9750/files/vaneladobelikidoxizodinov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4605/0714/files/simple_present_tense_worksheets_for_grade_3.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7D 4736 bytes
SHA-256: 30565e0f60a953ced02e778c43b69dfca8cab79db19acdd7d9b53d8bad3c7a0a
font_01_sfnt_off00007a71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A71 10944 bytes
SHA-256: 3ddf64731b77df3b45b72cfd03e501b4d0ee0d015756d4beb2af9c65089bcb12
font_02_sfnt_off00009f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F50 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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