Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b21bde345ea1da0…

MALICIOUS

PDF

42.1 KB Created: 2020-08-24 23:06:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f77aba8e9e64acafe82758b70ccad4e2 SHA-1: 956bfa790bbda2b1ea879139291c666e61ebf89b SHA-256: 9b21bde345ea1da09e17b42177f14efe759b1bfe4d6e8c906bf245c7080fc12c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.cc/pify?keyword=card+battle+games+android'. The document body text also contains this URL, suggesting a lure to trick users into clicking on malicious links. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the primary attack pattern is link-based redirection.

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.cc/pify?keyword=card+battle+games+android In PDF document text
    • http://dumomefo.cre8tivemarketingagency.com/uploads/1/3/1/3/131379874/kedid.pdfIn PDF document text
    • http://wegesi.sharpeningonsite.com/uploads/1/3/0/7/130776334/senodufezo_revalu.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/1/0441/4029/8392/files/shurflo_4008-_101-_e65.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9373/8143/files/bomiludofiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5156/4707/files/adobe_lightroom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5801/1035/files/ars_poetica_aristotle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0505/8976/files/suzog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9006/3003/files/oxford_dictionary_english_to_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4836/1375/files/i_ll_always_remember_us_this_way_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3915/2536/files/zokamexitapipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1023/6314/files/animals_names_in_tamil_and_english_with_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2091/0746/files/31574558118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4313/4362/files/19475028567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/4956/8667/files/tomamosisofitixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/saxubafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6197/6994/files/togok.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 8

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_off0000670d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670D 5188 bytes
SHA-256: 97f192f6150f6b88b61003665427519125b818d325832c6922cf55de1a666c3f
font_01_sfnt_off0000789e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x789E 10212 bytes
SHA-256: 7f57bffd61b39b3b9aa53ed7ef660b45ef153e3e60f80da595bb8def9e14dfc7

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