Malicious PDF — malware analysis report

Static analysis result for SHA-256 26d7390191547bcb…

MALICIOUS

PDF

33.7 KB Created: 2020-08-06 20:02:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e1c24c49dddc0f90699f2c810d71e672 SHA-1: 7353fd34099ea349dd7e4ff719c8e0a43ef2adc2 SHA-256: 26d7390191547bcb0bc15c35f63a6fb1c1c55affd8983fafee76d70514c56663
194 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, masquerading as a "Harpic toilet cleaner msds pdf" to entice clicks. One of the primary links, "https://ttraff.cc/pify?keyword=harpic+toilet+cleaner+msds+pdf", is identified as a malicious redirector. The document's structure and the presence of numerous Shopify-hosted PDF links suggest a link farm or SEO poisoning tactic to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.

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/pify?keyword=harpic+toilet+cleaner+msds+pdf In PDF document text
    • http://files.arganolabs.com/uploads/1/3/2/6/132683088/febukarifikara.pdfIn PDF document text
    • http://files.varvelsporthorses.com/uploads/1/3/1/6/131637853/bitinenobiwiwizuxufu.pdfIn PDF document text
    • http://files.playcaresrc.com/uploads/1/3/1/3/131378776/lavovax_xuveraju_nijet_razenakovexepu.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/1/0435/2750/4024/files/basic_heat_and_mass_transfer_mills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3934/files/agricultural_implements_pictures_with_names_and_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/can_you_refill_a_bic_lighter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2830/8387/files/most_common_behavioral_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6290/0374/files/berkeley_sportfishing_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1230/8637/files/bojijaleturanijoborizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3418/9734/files/sanatojebozasutodisobel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9928/3861/files/88294328819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1083/4077/files/how_to_mod_gta_5_xbox_360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/wonebadivadoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/zisewebikegebalunexages.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 4

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_off000046c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46C3 5260 bytes
SHA-256: f0779e1b2555ba798a35389950f31b0ca892bff9f8e3c9c29a48c005b07f7ebe
font_01_sfnt_off0000588b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x588B 9840 bytes
SHA-256: b5517434b9778e45f0c43f4347f8486d8e3709e5d735e3e38374c8456ef13a8a

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