Malicious PDF — malware analysis report

Static analysis result for SHA-256 7073fa4bd188793d…

MALICIOUS

PDF

33.9 KB Created: 2020-08-13 07:55:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d539f25de9b5c1f20c1acc0ac7fad990 SHA-1: 80bf9a6da4fbf4544204349af4eeda565e91f8ff SHA-256: 7073fa4bd188793d2cb3d063d6ef899bb1b4295921a12a759d7dc089e294d880
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/wb?keyword=brochure%20pdf%20bmw'. The document body, though heavily obfuscated, suggests a 'brochure pdf bmw' lure. The presence of numerous external PDF links, many pointing to Shopify, indicates a link farm strategy, likely for SEO poisoning or distributing further malicious content.

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/wb?keyword=brochure%20pdf%20bmw In PDF document text
    • http://files.nalinikrishnankutty.com/uploads/1/3/0/8/130874128/mewajuluxojuvafox.pdfIn PDF document text
    • http://files.harmonymassagewellnessjoplin.com/uploads/1/3/1/4/131453897/bidakom_xutasi_wojidimurinulip_kakepiwexe.pdfIn PDF document text
    • http://files.whiteeaglereiki.com/uploads/1/3/1/3/131383247/vasinazufusavovod.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/1/0433/8250/5628/files/tufojegixitekogidatavusaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6430/3522/files/80343781156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57148414383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0697/5382/files/84800590736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0014/3770/files/ubuntu_init_d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/xoviwuziw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6557/2514/files/86973616712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7035/7661/files/the_anthropocene_human_impact_on_the_environment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6743/1320/files/badminton_history_and_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/71806940534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0225/6795/files/pesme_o_majci_branko_radicevic.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_off0000481f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x481F 5256 bytes
SHA-256: 1bc64ecf922ec997672ceb9ea094e6e680b688b1835e7d8c6e311c670e12105c
font_01_sfnt_off000059ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59EE 9684 bytes
SHA-256: b6555f027157064f4f2b71e02f860b100de65112b1d40776cb0e96c4f92ff138

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