Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf6687f5997984d2…

MALICIOUS

PDF

43.2 KB Created: 2020-08-20 10:54:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d556387f31b32a0ee75974eb082af67 SHA-1: 2f0cef213cd9d106df8e1a37464cb516dc6ea0a0 SHA-256: bf6687f5997984d26482efd96b070e22da2d22602ab1ada9b7897ba21385aaa5
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector infrastructure. The document body, though obfuscated, contains text related to 'microsoft word cover page templates' and includes the malicious URL, suggesting a lure for phishing or malware download. The presence of multiple PDF links, many pointing to benign Shopify URLs, indicates a link farm strategy to obscure the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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=microsoft+word+cover+page+templates+2017 In PDF document text
    • http://files.beaconmarshallnc.com/uploads/1/3/0/9/130969659/ribofurizipozijogo.pdfIn PDF document text
    • http://navew.taiwanhotelnews.com/uploads/1/3/0/8/130813714/pumenixuwifo.pdfIn PDF document text
    • http://vufibuxi.christinefrankdesigns.com/uploads/1/3/1/8/131856158/5a1f8644a9efe2c.pdfIn PDF document text
    • http://migifi.johannawitick.com/uploads/1/3/0/8/130873851/9472407.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/1/0435/8524/1256/files/nosemapitavipebogokuzume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/climate_definition_geography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/renexejorelojumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6871/1321/files/roy_d_mercer_bad_apples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/87860962947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5788/2022/files/76543438589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2282/6142/files/21760528516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/axe_enchantments_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8672/5799/files/pokupoxaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6392/7203/files/80547984253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4169/2570/files/learn_thai_language_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1986/7036/files/gloomhaven_spellweaver_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/jedeposutonozemisiranovig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8408/5416/files/exponent_product_rule_worksheet.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_off000067f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F9 6040 bytes
SHA-256: e1c3c882b7214b78fbb85fed6a1ec83746f0f0978a018f75c421699d17cc6415
font_01_sfnt_off00007c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9B 10304 bytes
SHA-256: c60d8b2f464d639aeb9547567e187cc3ac4b6252edcff8405654ccb54e1a69ad

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