Malicious PDF — malware analysis report

Static analysis result for SHA-256 970a06774f1cdeb2…

MALICIOUS

PDF

44.9 KB Created: 2020-08-04 15:00:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 048bb7196052b184a82d49dd51e9c855 SHA-1: 3cde22ef41400042416526e17b1bddf03c7d66a0 SHA-256: 970a06774f1cdeb274276d846fecafd49a3cf2a39967d1ef5bc2ef8b46f9c33b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including a critical redirector to ttraff.ru, suggesting a link farm or phishing lure. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the target URL and references to PDF files, reinforcing the lure. The primary attack vector appears to be directing users to malicious infrastructure via embedded links.

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=dates+in+english+pdf In PDF document text
    • http://files.deityandhumanity.com/uploads/1/3/1/6/131606208/bidibokemuwuju.pdfIn PDF document text
    • http://files.7westproductions.com/uploads/1/3/1/3/131380616/6818143.pdfIn PDF document text
    • http://files.kennyharris.net/uploads/1/3/0/7/130775813/703c8ad.pdfIn PDF document text
    • http://files.aineedwardsconsultancy.com/uploads/1/3/1/1/131163712/e626871522a3.pdfIn PDF document text
    • http://files.amiedreyer.com/uploads/1/3/1/4/131483955/xofurisowetozujasej.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/1/0428/9835/8432/files/8003629611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5311/2735/files/milibul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6681/4617/files/transtorno_borderline_livro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2496/2968/files/57875651316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/40767636468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/tobaguratixukavunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0961/2712/files/vekekugitoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/38130583212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/xolenanazufedapona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9323/7665/files/waguvotuzotilejubedoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0006/2371/files/dumav.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 7

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_off00007276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7276 5208 bytes
SHA-256: e55c1e7b077c557b16eb6b00ec8fcae9f7f2fd5d9e858943e97ddb98c89b0d69
font_01_sfnt_off00008435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8435 10060 bytes
SHA-256: d80c7103d91f3ab063ee2e5605b2b1b51d636fb6f662884fdeb8696921648ce8

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