Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ef130a3c0be6477…

MALICIOUS

PDF

47.3 KB Created: 2020-08-16 13:19:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e43df9aec4c4c4f8e701fbe82c0a7259 SHA-1: 1d92a5598643feeff805a5aa2389a40d6f8ae488 SHA-256: 1ef130a3c0be64777a6a7ef908c18a14c825849065239e2a780fe34d5208c6ea
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=bayan+nut+bolt+todegi'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external links, with the first identified as 'https://cdn.shopify.com/s/files/1/0433/7516/5594/files/74694416521.pdf'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the redirector URL and references to PDF files, supporting the lure mechanism.

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.com/pify?keyword=bayan+nut+bolt+todegi In PDF document text
    • http://files.testingequipmentstore.com/uploads/1/3/1/0/131070178/2f90de622.pdfIn PDF document text
    • http://kuxato.mrsavans.com/uploads/1/3/1/3/131381078/xezetiwo-mozem-wudijid-jadakuposa.pdfIn PDF document text
    • http://files.globalprayernyc.org/uploads/1/3/2/8/132814048/21a418fc39a2.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/1/0433/7516/5594/files/74694416521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8039/8486/files/9363389874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/63773845751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4249/5899/files/2x72_belt_grinder_plans_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9074/6267/files/80732990830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6458/1525/files/75939386233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1281/6039/files/sikopiloja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinubigelezegir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3346/8839/files/73896675497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0015/8629/files/95458154931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/38659037606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0214/9540/files/racing_names_generator.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 6

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_off00007c98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C98 5012 bytes
SHA-256: 47da127c6f7fc0869c0061183f5ec7bcb558b65dc98daff8f393f0b7b0ea89f0
font_01_sfnt_off00008dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DBC 10164 bytes
SHA-256: 4f53e8d0a17886203fa6b92dc6db921d853e6e2210c4342c73a45bb7fbd7cd4f

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