Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5087b1e9f19f724…

MALICIOUS

PDF

43.3 KB Created: 2020-07-26 15:05:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b669284879b2df5cd070fc381265067 SHA-1: b7ecb330fe23e7abb9654148b443e6fae06eb77b SHA-256: b5087b1e9f19f724f5fa81cec5d99ad2a53752a596660077e213f99935c79def
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links redirects to a known malicious infrastructure at ttraff.cc. This indicates a phishing or social engineering attempt to lure users to a malicious site.

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=tattling%20vs%20telling%20worksheets%20pdf In PDF document text
    • http://files.tavernegoudenpunt.be/uploads/1/3/2/6/132681194/dasagozunonapodeve.pdfIn PDF document text
    • http://files.mrbalint.com/uploads/1/3/1/4/131452804/8805803.pdfIn PDF document text
    • http://files.bluecactuspoolservice.com/uploads/1/3/1/8/131857114/tunuzovu.pdfIn PDF document text
    • http://files.justinteisl.com/uploads/1/3/0/8/130814066/7203735.pdfIn PDF document text
    • http://files.javasisters.com/uploads/1/3/1/3/131379324/xikifudarolowi-lazugudojoga-jofedi.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/1/0430/4686/2997/files/gaguxijagiwerodilupox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3182/2485/files/pasod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/dajizutizosik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3030/5175/files/dadaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5311/2735/files/vorojitopizalufelola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8393/2582/files/vibipum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10588857949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7976/2073/files/makefimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6237/6101/files/69274181349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/luvutalanopijomakel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/14812384597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gubiwunezekubukezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/setamurebedaxovu.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_off00006c06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C06 5256 bytes
SHA-256: df7038f3da156a006e8b9298a67e2882b08260c6b334dc1dc6c6082d6110ca17
font_01_sfnt_off00007dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DEC 9884 bytes
SHA-256: 02408738ccdcfec27a63d6ad3e66ec82f662115384fa8b4a8ebc94d96162fe1f

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