Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb00d5d670fecec4…

MALICIOUS

PDF

35.2 KB Created: 2020-08-17 06:03:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6858eb09b733b9644bd04e69d0fe20db SHA-1: 0d8e9df5afce541c1e79275775aec5454a6465c8 SHA-256: fb00d5d670fecec456b5569df6a0a607d1c206d8854699ed842ee11c7f91a1bc
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a worksheet and the malicious URL itself. The presence of a link farm heuristic suggests an attempt to distribute malicious content through numerous links. The primary attack pattern involves luring users to a malicious site via a deceptive document.

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=prepositions+and+prepositional+phrases+worksheet+4th+grade In PDF document text
    • http://pasodapo.rautiaguitars.net/uploads/1/3/1/8/131856158/zozarosomud-nulafumej-gevubidunagofuw.pdfIn PDF document text
    • http://files.ultimatesourceoflove.com/uploads/1/3/0/7/130739778/gavamafapamapi.pdfIn PDF document text
    • http://rofowu.vjcompu.com/uploads/1/3/0/9/130969656/2994931.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/1/0431/3602/4742/files/63396149954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2652/0987/files/helicobacter_pylori_tratamiento_dieta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6626/7550/files/all_i_know_big_sean_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1088/2727/files/49797514025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2308/0344/files/stormwrack_3._5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/petosefurulujex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6866/0643/files/94039782456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0177/3212/files/niragedupuserivibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3960/1318/files/diwojebeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/52975337394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/78863795908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wefudebavisizaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2994/4730/files/how_to_change_into_word_doc_on_mac.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 5

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_off00004b21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B21 5464 bytes
SHA-256: c6fe27b2b86a58382613651bd87164d46cf5975ed8bd9e7b1313cbf032174cc8
font_01_sfnt_off00005dc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC2 9844 bytes
SHA-256: 603ee65cd487e461054b7d021fb042cedc1889a7f50d8892495f4c1d893c4bfe

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