Malicious PDF — malware analysis report

Static analysis result for SHA-256 212162394a9ae076…

MALICIOUS

PDF

43.7 KB Created: 2020-07-24 13:27:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8709528c245cbbccb600e95a49ba9753 SHA-1: 2ce6bcf10a793542f8745c571ea7cd42ee76e1f0 SHA-256: 212162394a9ae07622eb0b218ee57d6af2f07b97b532fc1039beb970578a4be0
194 Risk Score

Malware Insights

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

The PDF contains a mass external PDF link farm, with multiple links pointing to Shopify domains and one critical link to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to 'wkhtmltopdf' and a date, suggesting it might be a generated document used as a lure. The primary malicious IOC is the redirector URL, which likely leads to a phishing page or malware download.

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.cc/pify?keyword=east+west+play+6+manual In PDF document text
    • http://files.jenniferocook.com/uploads/1/3/1/6/131637302/zodilitirafeb.pdfIn PDF document text
    • http://files.oxnardwirelessrepairs.com/uploads/1/3/1/8/131856358/girawepapo-gumepitowazug-gojopazivuguku.pdfIn PDF document text
    • http://files.spokanehomefuneral.com/uploads/1/3/2/7/132740606/9229299.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/1/0434/3519/6566/files/robuserukedudopuvawuput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0212/6751/files/33377952723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/68672870328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/804691331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5951/9387/files/51187815900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6621/3031/files/zuraravidugepisipawogawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/zasepatosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31321710084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/bodibotutapalurovirawipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2836/files/18098907966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0812/2270/files/setek.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 4

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_off00007017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7017 4896 bytes
SHA-256: a3747f832717d14369bd8939a4ae33ebd256566e229cd4fadaad33c2edf069e2
font_01_sfnt_off000080be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80BE 9604 bytes
SHA-256: dac8dae124d1f8dac126f833254fdec88cb98e4dbf2e3aaafd7ef3e4e79ac2ad

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