Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5d2afe2ec356dfd…

MALICIOUS

PDF

46.6 KB Created: 2020-08-16 11:01:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2cd43111f593b42278f49c72912dff88 SHA-1: dd3a4fb2f8e79dc36cdb4d2246f441a69d844817 SHA-256: d5d2afe2ec356dfd77ed763fa619ebe7b34226ed6dac421bacdafb04e8fd1a03
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link to 'ttraff.ru', which is flagged as a known malicious infrastructure. The document also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to various external resources, including benign Shopify links and other unknown domains. The ML classifier strongly indicated maliciousness. The primary intent appears to be redirecting users to malicious content via the 'ttraff.ru' URL.

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=amplitude+modulation+lab+manual In PDF document text
    • http://files.orilliasilverband.com/uploads/1/3/0/9/130969428/1851768.pdfIn PDF document text
    • http://dibib.izzyzaino.com/uploads/1/3/0/8/130814328/zodenadozujomu.pdfIn PDF document text
    • http://files.norwinxc.com/uploads/1/3/0/9/130969826/8517011.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/1/0430/5436/6877/files/artistry_cushion_foundation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3396/8287/files/latepoziba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9842/2934/files/vbspu_exam_date_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9563/7659/files/turn_off_chrome_password_manager.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/62527452815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1517/2259/files/dna_replication_molecular_biology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7813/2636/files/vekolatufigisisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7264/2460/files/curriculum_vitae_format_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4104/6171/files/27560730039.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 5

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_off00006bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAC 4840 bytes
SHA-256: 3a346b1b0f836010ab04f41cd0847db0841ec14670ca9c03536d85d0a0ba108e
font_01_sfnt_off00007c00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C00 10560 bytes
SHA-256: 9e94fb8623c796c03698e9ecea1d798329de3221dc3cb3c7be336f32a83f285d
font_02_sfnt_off00009fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FE2 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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