Malicious PDF — malware analysis report

Static analysis result for SHA-256 52fca108c37dfcf3…

MALICIOUS

PDF

43.5 KB Created: 2020-08-04 22:20:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 88e1e01bfeedd412c785abc11c3e78fe SHA-1: 5194f3a93f166ea4c0305c45cb307eab1ab408bc SHA-256: 52fca108c37dfcf370ca9342c278d73d2d974b904f8b9442bfca9ad174151dd0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=pdf+annotator+benzeri+program'. The document body, though heavily obfuscated, also contains this URL and numerous other links, suggesting a link farm or redirection strategy. The primary intent appears to be directing users to malicious infrastructure under the guise of a PDF tool.

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=pdf+annotator+benzeri+program In PDF document text
    • http://bosuvip.mooremiracles.com/uploads/1/3/0/7/130775085/88b9be7.pdfIn PDF document text
    • http://files.thepolisheddistrict.com/uploads/1/3/0/7/130739654/27a768d.pdfIn PDF document text
    • http://files.eco-leo.com/uploads/1/3/2/3/132302816/sotuded.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/1/0437/3767/7989/files/28261341283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/53284054210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/pmp_braindumps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2309/3147/files/silk_meeting_in_my_bedroom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9587/3949/files/dyson_dc07_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/5665097559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6764/5857/files/klove_phone_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7211/7141/files/digilabobesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3738/5123/files/32986674383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/37063857314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0632/8995/files/14386876091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/xulevo.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 1

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_off0000697a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697A 5340 bytes
SHA-256: 9eb341d6e91ccfeb92c33c365e92453259c9ce2b217d4c5121126ec0485c0bca
font_01_sfnt_off00007b9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9E 11640 bytes
SHA-256: 5b492ae4006d5b0cc235111619ef0db3776fe0c273b962f37b6b3a046c8bc7eb

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