Malicious PDF — malware analysis report

Static analysis result for SHA-256 03d4bfe1ec279ff6…

MALICIOUS

PDF

35.7 KB Created: 2020-08-09 09:43:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d495192fbe8c3e682ab6a98c9e367def SHA-1: eb81a643b1113bc38cd06300505c60a526d74b3e SHA-256: 03d4bfe1ec279ff6ca467324db8d1cc30d241fa288136ad8b7529e894eefc305
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one critical heuristic identifying it as a redirector to malicious infrastructure. The document body, though partially corrupted, contains text related to a PDF download and a URL that matches the malicious redirector. This suggests a phishing or scam attempt to redirect users to potentially 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.ru/pify?keyword=peter+atkins+principios+de+quimica+pdf+download In PDF document text
    • http://zekuzogul.shanesimaginenation.org/uploads/1/3/1/4/131408738/3e9fb5f9aaa615c.pdfIn PDF document text
    • http://files.salahghazzal.com/uploads/1/3/2/3/132303269/jusoru.pdfIn PDF document text
    • http://files.luxesalonmaui.com/uploads/1/3/2/8/132814990/gixurefeku.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/1/0431/2036/1629/files/jiworevuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0268/2789/files/zovopinomenutusidibixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1044/0862/files/88077430663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5118/6336/files/compliance_risk_management_framework.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3904/files/faliligotafiforevefaxigog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/89986339407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9890/6528/files/tuwebenibavaraz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/42745006773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/sewepewulogiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6124/7138/files/57880374144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9087/0423/files/zilenapixunidakiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/10809735118.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 3

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_off00004c76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C76 5584 bytes
SHA-256: e7f8d6a54a67b5db1ed44dbe198cfa5350e15e23f4cfac9e4a633d239eedf8d3
font_01_sfnt_off00005f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F76 10008 bytes
SHA-256: 22d3b67997b73523c5a3d672e02612c635b9e290b2c5dee0a6cc5c742cb6e2bf

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