Malicious PDF — malware analysis report

Static analysis result for SHA-256 26d9a0a153cfe717…

MALICIOUS

PDF

113.1 KB Created: 2020-08-07 06:09:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9291f1816dc83207f5fb574a974f2617 SHA-1: db16143c3a36f4515b5787aa1e9eef276f0eeb56 SHA-256: 26d9a0a153cfe717539ec0b0948b94192d682a804b1d104177f4a84a364c30c2
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, indicating a phishing or redirection attempt. The document body, though heavily obfuscated, contains the target URL. The presence of multiple embedded links, including one to a redirector, strongly suggests a malicious intent to lead the user to harmful 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/pify?keyword=alter+ego+plus+a1+guide+pedagogique+pdf In PDF document text
    • http://sejinit.mechanicalairconcepts.com/uploads/1/3/1/4/131452883/4659056.pdfIn PDF document text
    • http://files.blessedredeemerpb.org/uploads/1/3/1/3/131398419/242177.pdfIn PDF document text
    • http://files.dannyanthonywritings.com/uploads/1/3/2/7/132740291/duwevekimizak-lomizinijujaguk.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/1/0434/6226/2936/files/bovad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/21337787153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7165/8392/files/jisotin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7400/2837/files/lexizigosefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/govin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6012/8931/files/linear_programming_basic_concepts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8653/6092/files/atualidades_vestibular_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/xuzazixefujelikizalor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/tunufixopato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gekubamunanapomokavonata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/wuzotozamav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7196/2265/files/dewopamiwom.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 7

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_off0001696b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1696B 5376 bytes
SHA-256: 4ffbbd08411d2709013f8a7d5a824d0dbf1659d9369a5dcfc29c9751f33e16d5
font_01_sfnt_off00017bc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17BC4 10872 bytes
SHA-256: 6ca01060ade837f3a3631e02c5fa0aefea889a8b0c096bf96fb0133b82f7533a
font_02_sfnt_off0001a0db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A0DB 16284 bytes
SHA-256: 730fc328d9325e95574748a9424e19ce1bf2481faa408955f419eb589684c9ff

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