Malicious PDF — malware analysis report

Static analysis result for SHA-256 053e1bed1939d2b9…

MALICIOUS

PDF

55.4 KB Created: 2020-08-20 21:16:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eef4551692ba0e0be72888bbc99ba2ca SHA-1: 352b644b6cd9246176ad92f9ad6cfcab3dcf9d4b SHA-256: 053e1bed1939d2b99861d5dd323719ce71ffa626ef82bb9d6091f49a110d4051
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=myeras+residency+user+guide+2020`, which is flagged as malicious. The document body, though heavily obfuscated, contains references to a 'user guide' and the malicious URL, suggesting a phishing or malware delivery attempt. The ML classifier strongly indicates maliciousness, and the presence of multiple external links points towards a link farm or redirection strategy.

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=myeras+residency+user+guide+2020 In PDF document text
    • http://dodota.thehipaaman.com/uploads/1/3/0/9/130969953/tifapoxujerakujuwol.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/1/0430/1737/1797/files/89797660113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/atomic_structure_and_the_periodic_table_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3115/8175/files/el_capitan_homebrew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9252/4702/files/zesixarus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9506/8567/files/crimes_against_humanity_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9234/4999/files/77825935576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7023/4519/files/50631511724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/annenmaykantereit_barfu_am_klavier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3980/5855/files/p90x_nutrition_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5224/3861/files/after_school_africa_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9074/5246/files/ribivukev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8689/5512/files/depopukurozonipivoxosis.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_off000099cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99CD 5456 bytes
SHA-256: aaa3d4e9edde1fcbad49cc063eaa877976d26c6f9b8206f831bae5a8ee42064e
font_01_sfnt_off0000ac70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC70 10732 bytes
SHA-256: 3b4362104290cab396d25b2197d7a47c67ecf6195d87300c0a58a5c470864573

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