Malicious PDF — malware analysis report

Static analysis result for SHA-256 a62589b4e1099ad6…

MALICIOUS

PDF

45.4 KB Created: 2020-08-26 03:12:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93fac4deb8683a316e0bc3bd127bb91f SHA-1: d4fc6e5a26bf3ba277744923d1a102d662ec8526 SHA-256: a62589b4e1099ad68bb1faeb52fc9cab494cfee1969e3072c5d87de3d5117ed1
222 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it's a malicious redirector and part of a link farm, with a lure suggesting an invoice or payment context. The embedded URL `https://ttraff.ru/pify?keyword=descargar+talones+fone` is flagged as malicious. The document body, though heavily obfuscated, contains this URL and text related to downloading talons, reinforcing the lure. The presence of numerous external links, many hosted on `cdn.shopify.com`, suggests a broad distribution effort.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=descargar+talones+fone In PDF document text
    • http://topog.boostfitness.co.uk/uploads/1/3/1/4/131406798/xereladatutifuvixaf.pdfIn PDF document text
    • http://mipefed.bethadice.com/uploads/1/3/0/8/130814124/eca5dcdba3830.pdfIn PDF document text
    • http://kulaju.ballardbanjers.com/uploads/1/3/1/3/131398540/634ed2.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/1/0440/3838/9925/files/23231820858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8666/3070/files/forever_aloe_msm_gel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0236/3047/files/baaghi_movie_full_3gp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0594/1672/files/64437790819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9811/6006/files/data_analytics_laboratory_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9243/5359/files/acrobat_reader_combine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1456/9640/files/89251058963.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 8

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_off00007457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7457 5048 bytes
SHA-256: 8661db7475407f7fcdce6fbe50889355027782455bc41ab97e4e7698428d482b
font_01_sfnt_off00008592.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8592 10392 bytes
SHA-256: d4a8d6a9baf8c43967ddaca84682d223db8a3ed83a11ea436a10ec9934645bf2

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