Malicious PDF — malware analysis report

Static analysis result for SHA-256 c588071a9b7b2905…

MALICIOUS

PDF

38.5 KB Created: 2020-08-25 09:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 335e8777180d6b0c1243794104f48847 SHA-1: f2502392c958699722a5e891c9ff18d0f409a254 SHA-256: c588071a9b7b29059379a24c46fae210a4242b9b8783fb1afed872201bbee3c3
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a known malicious redirector. The document body text, though garbled, includes the phrase 'Filleted accounts template' and the malicious URL, suggesting a lure to trick users into clicking on potentially harmful links. The ML classifier also strongly indicated maliciousness.

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=filleted+accounts+template In PDF document text
    • http://files.nzlifeontheroad.com/uploads/1/3/1/3/131398235/xadarapi.pdfIn PDF document text
    • http://files.hareloomupholstery.com/uploads/1/3/2/6/132696604/291982.pdfIn PDF document text
    • http://files.dancetemplesaltspring.com/uploads/1/3/1/8/131871648/tapixofoxul_gipivenaxaf_nulafakim_gosakumele.pdfIn PDF document text
    • http://lomodi.marchdrumcorps.com/uploads/1/3/0/7/130776783/waxulutonefobedeza.pdfIn PDF document text
    • http://files.salentoby5.com/uploads/1/3/1/0/131071258/wanow-dofoneruratobom-lalivakiba.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/1/0448/0296/5665/files/us_calendar_with_holidays_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3033/1040/files/90333544340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4695/2351/files/anki_overdrive_app_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5892/1621/files/dimibikilepalemokoluzev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/torudiposunuvikad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4822/9271/files/one_minute_manager_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2530/9604/files/soxej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9923/4203/files/apprendre_le_grammaire_franais.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8579/0358/files/lomukabigexukusolawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7165/8392/files/84826010358.pdfIn PDF document text
    • https://companieshouse.blog.gov.uk/2016/10/06/accounts-advice-for-small-companies/In 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_off00005a51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A51 5076 bytes
SHA-256: 17d2dcc6cfc45c07cc9deac82b93771445fe44063d06c0c8e3be22c483d5c29d
font_01_sfnt_off00006b7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B7E 10004 bytes
SHA-256: 688660dfcd7006ac9dcb1ccfb1dc22fbc61aa5e28a2cd7f57dac0ed6292607a2

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