Malicious PDF — malware analysis report

Static analysis result for SHA-256 27bfecd6f99c2381…

MALICIOUS

PDF

39.8 KB Created: 2020-08-12 08:23:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e636073ac94db7324adb4d77d5b7a5cb SHA-1: b00ec1ad63e639eeaae0a9dd1459111444ff8b38 SHA-256: 27bfecd6f99c23811bd0d9b19c2b51819f34acb9d656f7e6025983cfdb4560ab
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.com/pify?keyword=pdf+to+word+software+free+download', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links pointing to what appears to be a link farm hosted on cdn.shopify.com. This suggests a social engineering attack aiming to trick users into visiting malicious sites under the guise of providing useful software.

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=pdf+to+word+software+free+download In PDF document text
    • http://files.clearlivingconsulting.com/uploads/1/3/1/4/131483279/rutajuvixige-ranerututavir-busov.pdfIn PDF document text
    • http://files.thehulahut.ca/uploads/1/3/1/4/131438419/fewegalaxuvoka-pezuf-nanara-xoxemufukag.pdfIn PDF document text
    • http://zodomo.newalbanynext.com/uploads/1/3/1/8/131856158/e0731ac34cc.pdfIn PDF document text
    • http://files.ghsshield.com/uploads/1/3/0/7/130738924/1986564.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/1/0433/3414/0056/files/fivenigelubawuxajotedoxad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/datakofudakolefubub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8830/6586/files/ace_engineering_academy_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/73483113343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9736/6436/files/solipawupaxidexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/pijotonirabuzeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/jj_redick_contract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8145/8069/files/gigedunitilirezipidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3735/0309/files/fotigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mirizopenifipometetotagoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2725/9811/files/54685036200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5493/7765/files/kefela.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_off00005f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0C 4992 bytes
SHA-256: 405e609107046dbd71103d5df83288c944667a438ed04e639aacd36784e4db2d
font_01_sfnt_off00007028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7028 10048 bytes
SHA-256: efef1f0f5a0eecf84696d1a3baff9c09d2ecaa70ac56cc151f2566bc62e689d9

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