Malicious PDF — malware analysis report

Static analysis result for SHA-256 097cb2c4d540d6ef…

MALICIOUS

PDF

43.8 KB Created: 2020-08-25 02:31:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd3f5de389e0e9cdae19803519a63966 SHA-1: 9c6daa6265f14d60da202aa909022359378c0045 SHA-256: 097cb2c4d540d6efbbffb679e438ab1a083f8bf4259ebb056fdadfb432502467
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains embedded links that redirect to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and heuristics suggest a phishing lure, likely attempting to trick users into downloading further malicious content or visiting a compromised site. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence indicate malicious intent.

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=datasheet+catalog+diode In PDF document text
    • http://files.oharts.net/uploads/1/3/0/7/130740118/kumewinudep.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/1/0461/9275/4839/files/99263096801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9204/2137/files/vagolovalofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/half_centimeter_graph_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5407/9910/files/lovipatigegufunerit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2921/7958/files/xadevimusunopakivew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4750/9416/files/vojiruposidigima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0346/2303/files/41018940810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4355/2423/files/99828023497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9899/4856/files/fibixema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1524/1891/files/business_model_analysis_example.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000583a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x583A 4788 bytes
SHA-256: 1619990cb9d42ef68d2b13763c5fa766536322f0f18a94ecd9059cbd07390835
font_01_sfnt_off0000688b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x688B 14320 bytes
SHA-256: 63eb9f1ce02604c0929abaad571e82d4501fedf8fdd728a00df9a69bcc10c43a
font_02_sfnt_off000094c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94C6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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