Malicious PDF — malware analysis report

Static analysis result for SHA-256 d810bad669ba05fc…

MALICIOUS

PDF

32.5 KB Created: 2020-08-13 07:02:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69743b9800ffce5b7f4f5830311e4c5a SHA-1: 66f0faba9ab99e922583b64b05a8ff3947703192 SHA-256: d810bad669ba05fc58e74974326004b218b7f92ec4c1506bf9fbb0f4b9e7cda3
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/wb?keyword=zaner%20bloser%20handwriting%20chart%20pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to handwriting charts and the authoring application, suggesting a lure to disguise the malicious intent. The primary attack pattern involves redirecting the user to malicious infrastructure.

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/wb?keyword=zaner%20bloser%20handwriting%20chart%20pdf In PDF document text
    • http://files.springfieldrenaissanceschool.com/uploads/1/3/0/8/130814078/1699944.pdfIn PDF document text
    • http://zonedix.mamawellacu.com/uploads/1/3/1/4/131407233/vevegikapizix-wiwoxirowoneg.pdfIn PDF document text
    • http://files.marytherapeuticmassagenb.com/uploads/1/3/2/6/132682171/5d0758.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/1/0430/6914/5241/files/5394509802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1112/1057/files/65148948721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/vixuxifudaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/xulewititovufef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/matugovodopobatulozozog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7300/9819/files/wabekal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/10381977098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3309/5326/files/94242670560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3161/6918/files/buku_belajar_bahasa_jepang.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/56727342430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1751/8751/files/bubexizexil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/87760431025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6109/2255/files/kokejipabikorevepavubiboz.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_off000042d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42D5 5608 bytes
SHA-256: 506e6841fb49feee75d5ad37d0ed9080732e3ed9cfd50632628a39e71884bb06
font_01_sfnt_off000055ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55EA 9220 bytes
SHA-256: 032adfc2c13b6dbb35e68d1b281322ea6e1650e4368e3cd40f2cac7f5eeb74eb

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