Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb8f50d7af853b92…

MALICIOUS

PDF

71.5 KB Created: 2020-08-25 00:30:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c83b3eef3ba99916aba42a5687e6763 SHA-1: 48e1989e9d852c381b7bbc5b1c0fe947ad878fcb SHA-256: eb8f50d7af853b922747df66aa5f8fd2402ba45d7964c6e875c6f00a70436820
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=artists+way+julia+cameron+pdf'. Another critical heuristic indicates a PDF link farm, suggesting an SEO-driven lure. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. No scripts were extracted from this sample.

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=artists+way+julia+cameron+pdf In PDF document text
    • http://files.enhopeexchange.org/uploads/1/3/2/7/132712080/jigixuma-mebemadazifijo.pdfIn PDF document text
    • http://files.hilcoeyeglassrepair.com/uploads/1/3/1/4/131482864/gogexoserugol_negavog_kevozeluxid_doludamumi.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/1/0428/5317/1356/files/defepoberotoluvonij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1054/6074/files/java_programming_tutorial_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6507/4086/files/8272131282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8212/9320/files/84517098313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/tumolotukasutulagavuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5598/6341/files/dejijimofeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/24246955175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6513/0658/files/70205852844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7453/6103/files/98346649519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0291/2158/files/pasobekilivumiximijiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4456/files/cisco_netacad_answers_chapter_6.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 2

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_off0000cd74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD74 5440 bytes
SHA-256: 4352a5643cd355582f24fb177f3d370f8f2490333cd6beaf01c60302c04e84ae
font_01_sfnt_off0000dfeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFEB 10192 bytes
SHA-256: 5dbaa81c25315cb4bd16da7fa2b5b710ec38144ddd6c083df4cf491cd25e2786
font_02_sfnt_off000102cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102CB 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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