Malicious PDF — malware analysis report

Static analysis result for SHA-256 2751821a8970e5bb…

MALICIOUS

PDF

45.2 KB Created: 2020-08-03 03:53:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c75cfa89266d6e044e39ed8289f4a4de SHA-1: 563fbf10abec3de7308ab7af24e025ea550e4b9d SHA-256: 2751821a8970e5bb9235f6d9a132404e67c2064037bf31c886e170f3847f1a4a
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic indicates that a link within the PDF redirects to known malicious infrastructure at ttraff.com. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or malware distribution.

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=cuisinart+automatic+grind+and+brew+manual In PDF document text
    • http://files.fordhamentertainmentnetwork.com/uploads/1/3/0/9/130969889/wapid_soxag.pdfIn PDF document text
    • http://files.virtuallens.co.uk/uploads/1/3/1/4/131437984/6224688.pdfIn PDF document text
    • http://files.ucvillagegarden.net/uploads/1/3/1/4/131483147/5440292.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/1/0437/2326/0058/files/daretij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/tiratuxuzoxunaxisamazese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2831/files/nayvadius_demun_wilburn_evol_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0133/9304/files/juxutunipudeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41326774972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9199/2480/files/potuvevalofoxenegivuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9015/7474/files/38508324207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9400/7191/files/78872853614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wirokole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3382/0322/files/jiluvaserun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6259/9585/files/81389429352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1604/3168/files/soils_and_foundations_8th_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2807/7992/files/nojupas.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 2

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_off00006ffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFD 5396 bytes
SHA-256: 8c4379d7b26a9dec091c5f4a3b2e7b1901745770f343e923499cdba23821d8b4
font_01_sfnt_off00008248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8248 11116 bytes
SHA-256: 893772fc7a3f873b4a6edbaa5988415b5e645c27c1d690a03195b23c1be75be5

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