Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a7fc3fc753a8e92…

MALICIOUS

PDF

43.6 KB Created: 2020-08-12 18:20:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d22e283cd99072d5c788dd345f1db118 SHA-1: cb5185e86528c5747138a9d5af86e099111f0fb5 SHA-256: 2a7fc3fc753a8e924a434b7caa75dbcb08f7ed2ccc07ac88c2435e744ff423ed
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lure users into clicking links that lead to potentially harmful content. The document body, though heavily obfuscated, contains URLs that align with the heuristic findings, suggesting a phishing or scam attempt. The primary malicious URL identified is a redirector that likely leads to further malicious content or malware.

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=ca+final+costing+paduka+pdf In PDF document text
    • http://files.popcornpets.org/uploads/1/3/2/6/132695571/073360613e7ce6d.pdfIn PDF document text
    • http://files.wichitafallsbridge.com/uploads/1/3/0/8/130813320/dde152f575a79f6.pdfIn PDF document text
    • http://files.roadstercarwash.com/uploads/1/3/2/3/132303270/vusogidel-jeteto-jewaj-rovisot.pdfIn PDF document text
    • http://files.artistsmakeupstudiodoha.com/uploads/1/3/1/4/131437487/xikoro-nokajeni-xuriguxop-keziga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/4192560885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5649/5783/files/42703578470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9073/0391/files/cargoes_john_masefield.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5730/8063/files/pearson_health_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6222/3263/files/8436385163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0997/files/kivukekuxogozabironupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9621/0594/files/68686739136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4244/7265/files/verukuxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6088/7705/files/71950448731.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5152 5076 bytes
SHA-256: 9f2011bab21eaef83edeaacfed74739c4de938ee5427c942df5cb8e007b5e72b
font_01_sfnt_off000062aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AA 14860 bytes
SHA-256: 5753fe77b52a5b53d7db3eaa7efc7e7ca3075995382426791867f21a4561e164
font_02_sfnt_off00009185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9185 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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