Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2a22bd02f571b6b…

MALICIOUS

PDF

37.3 KB Created: 2020-08-13 18:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fdfa704ae7161a0275b31e4d82a7fb34 SHA-1: e4fb749f3e674718504905ff9566e51f7df70ad4 SHA-256: f2a22bd02f571b6bc084205509c498554e9d6eed24feb2f97bb041b34563932b
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the redirect. This suggests a phishing or scam attempt designed to lure users to a malicious site. 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.com/wb?keyword=bissell%20portable%20carpet%20cleaner%20manual In PDF document text
    • http://files.operationhelpahero.org/uploads/1/3/1/4/131453531/tovaxe.pdfIn PDF document text
    • http://ninag.zomibaptistchurch.com/uploads/1/3/2/7/132712315/e57e184501e.pdfIn PDF document text
    • http://files.carllindbeck.com/uploads/1/3/0/7/130738876/nokinikalezad.pdfIn PDF document text
    • http://files.parsonrob.com/uploads/1/3/1/3/131397981/2866807.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/1/0435/4539/5359/files/33515046957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/rodapamumulesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/bejokabexobofebez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5883/0231/files/likisam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6668/7642/files/52443104936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2150/8506/files/44908951576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5340/files/mexagasekumiwukenefijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6990/5825/files/sipiwivewomoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3458/0891/files/27522372126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1144/0803/files/kozitokakokuzoditodomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8930/files/raduzupixizibinutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7929/5383/files/colin_banwell_spectroscopy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4970/4854/files/59061810457.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_off0000537c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x537C 5268 bytes
SHA-256: b787914a638b57073caedf38cf8cbf308b98eb1c76accf2d62a374ce778d5647
font_01_sfnt_off00006543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6543 10260 bytes
SHA-256: 6fca38cef53ba5d872a12fa7293641683884926b73cfd6d6cbf7ce501135f3d7

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