Malicious PDF — malware analysis report

Static analysis result for SHA-256 53382b74d60890b7…

MALICIOUS

PDF

44.8 KB Created: 2020-08-14 18:53:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b0678af89d7c8bb269d12847080bca4 SHA-1: 98fd4b9b699aec7bfa32857146ee926766646694 SHA-256: 53382b74d60890b78842fe3fc2ebbcd84fe481647732ec5e2cdf580adc3a673e
202 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text that suggests an urgency lure, such as 'account will be terminated' or 'action required within 24 hours'. The presence of a link farm further indicates a malicious intent to drive traffic to potentially harmful sites. No scripts were extracted, limiting the analysis of direct payload execution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.com/pify?keyword=evicore+cigna+clinical+guidelines In PDF document text
    • http://files.filmityourself.co.uk/uploads/1/3/0/8/130873921/lepemavad.pdfIn PDF document text
    • http://files.berkshire-epc.co.uk/uploads/1/3/2/6/132681783/mososadonegukovalu.pdfIn PDF document text
    • http://sujibukus.thewindingsheetoutfit.org/uploads/1/3/1/0/131070581/4076751.pdfIn PDF document text
    • http://nutuf.healthytritowncoalition.org/uploads/1/3/1/0/131070998/3326298.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/1/0431/0047/1456/files/nepuwumubafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4288/0160/files/how_to_answer_the_phone_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6318/9405/files/domor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5930/4865/files/philips_universal_remote_srp5107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4487/files/cfop_oll_algorithms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9998/7873/files/givaxopejimifukus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7115/8949/files/xizumifadeberegowazizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5797/0328/files/cursive_handwriting_fonts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1322/4094/files/bexapamavezivamupavemide.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000646c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 4928 bytes
SHA-256: 94c553860e68220218bf5c3234d2b0acfd7ed7c3ea778350337f6e3bf4688281
font_01_sfnt_off0000752b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752B 10140 bytes
SHA-256: 4d7fe7c4d8e879822217708e504fc26ce75c95fa38887f6f3053eb9080d6dc12
font_02_sfnt_off000097e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97E8 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c