Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1228758ccb793c0…

MALICIOUS

PDF

34.9 KB Created: 2020-08-14 22:57:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 101ca5dd28120cd94a759fa2ae0130ef SHA-1: b83a17d180aafcaf3a5e03b03924fb392d69e08a SHA-256: f1228758ccb793c06355cc773341fd1391d5e2a179bdf4164e928e9f6d0049aa
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing a malicious redirector link and a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is https://ttraff.cc/pify?keyword=background+for+easyworship+2009, which is likely used to redirect users to further malicious content. The ML classifier also strongly indicated maliciousness.

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=background+for+easyworship+2009 In PDF document text
    • http://files.christiestimber.com/uploads/1/3/2/3/132302815/a80bec9c772bc.pdfIn PDF document text
    • http://files.markgordonglass.com/uploads/1/3/1/6/131636654/3013826.pdfIn PDF document text
    • http://files.birthblissdoulacourses.co.uk/uploads/1/3/0/7/130775701/fugugiverosawamog.pdfIn PDF document text
    • http://files.ywamalternatives.net/uploads/1/3/0/7/130776366/fevimejuvi.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/1/0428/9835/8432/files/vitalifurefafimeribedewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5351/3880/files/apache_poi_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/6822622271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2118/8763/files/capital_letters_and_small_letters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6354/9845/files/13812235611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4814/0949/files/pomoxetilulovogop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8446/1720/files/tejikifaxumilujojijidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0036/files/42525517952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5651/9576/files/gefipebuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/lodow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/diccionario_de_teologia_biblica_bauer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9301/6222/files/91465076616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/dafeta.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_off00004903.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4903 6120 bytes
SHA-256: 75271d62982e86f8ee4e98a4677636d92095d476cca47730af12b1066baefa8e
font_01_sfnt_off00005def.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEF 9620 bytes
SHA-256: 0acbccea52e87d46774a45f62f8457cea42daa1679535a21a2c4276069d2b11c

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