Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d8e16b949e57125…

MALICIOUS

PDF

39.2 KB Created: 2020-08-23 10:15:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ddad9fe33482d060a1cef5a8fa007ed1 SHA-1: 8ce20f5f1a71b2b9c9dd78e8abb6ba8055330ef4 SHA-256: 3d8e16b949e571250964f6e53a000d44897e4d779b0c6a89f6c1f219b001799d
202 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to PDF files hosted on Shopify. One of these links, 'https://ttraff.ru/pify?keyword=aoe+1+b%25E1%25BA%25A3n+chu%25E1%25BA%25A9n', is identified as a malicious redirector. The presence of a "download button" heuristic suggests a lure to entice users to click these links. The file's structure and the nature of the links indicate a link farm or SEO poisoning attack designed to redirect users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=aoe+1+b%25E1%25BA%25A3n+chu%25E1%25BA%25A9n In PDF document text
    • http://xakedev.saxonknight.com/uploads/1/3/1/0/131071057/bonobavesabeveralo.pdfIn PDF document text
    • http://jisovazef.amandabarnaby.com/uploads/1/3/1/8/131856959/4008111.pdfIn PDF document text
    • http://fowix.tallentfineart.com/uploads/1/3/1/4/131454106/besasoxiwovukudubab.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/1/0434/6452/3926/files/91368691011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30899714004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3355/9203/files/68595513961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7174/files/16271608906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5395/6766/files/ansoff_growth_matrix_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/5927/7987/files/algebra_1_regents_august_2015_answers_jmap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8456/2851/files/3334220873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5494/3643/files/kulepusomegow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4294/7750/files/xigisagol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8307/0629/files/54099847421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3541/0077/files/65399200312.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A30 5116 bytes
SHA-256: c0571439f31cb05adc74a8945810f18b5097d86a3d8d83c0fdb1675150817a16
font_01_sfnt_off00006b0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0C 10804 bytes
SHA-256: 761fa68825a376d566c8ea59e6031845bc27185e3034dfdefcaf8ae1de359760

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