Malicious PDF — malware analysis report

Static analysis result for SHA-256 56d8697de9e0c8d9…

MALICIOUS

PDF

48.4 KB Created: 2020-08-21 05:33:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4be21a937a755a0b3f27ef50fd2042e9 SHA-1: 3219e44a895879e44779d21ec865fda38f1c3483 SHA-256: 56d8697de9e0c8d9364b14cb4af855e621680d4c04ab6e3c6a793e737f8d9ed5
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that mirrors the malicious redirector's target. This suggests the primary goal is to redirect the user to malicious content via the provided link. No scripts were extracted from this sample.

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.com/pify?keyword=4+day+bodybuilding+workout+schedule+pdf In PDF document text
    • http://bamizekux.sogchurch.net/uploads/1/3/2/8/132814439/6312de1ff.pdfIn PDF document text
    • http://files.bonusmath.com/uploads/1/3/1/8/131856844/vudapa_nufim_boritibor_ponapuribube.pdfIn PDF document text
    • http://gabiwube.uticaenterprises.com/uploads/1/3/1/4/131406390/vinivonikorasifadu.pdfIn PDF document text
    • http://files.jencullertonjohnson.com/uploads/1/3/1/8/131856135/roxenag-nanezemetej-xewigoris-zosedemipa.pdfIn PDF document text
    • http://files.zumbacatherine.com/uploads/1/3/1/6/131636655/sobujijup-nedavidixipan-merowagu-vopameluf.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/1/0436/0473/8206/files/94634425975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9918/4551/files/vocabulrio_ortogrfico_da_academia_brasileira_de_letras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/78999473816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/vigoriromukoxupemazidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3493/5447/files/dofaxizeluwojev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6388/5472/files/tatasipikitararedavuvizut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7825/4745/files/togogowulerimum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/imaginary_numbers_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3985/7563/files/85483077678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/manga_drawing_tutorial_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/89949604064.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 5

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_off00007da7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA7 5808 bytes
SHA-256: 737d56301a24d1690fa561b8fdd8d1eda5277cf138d63fa539f2485e89f4eef1
font_01_sfnt_off0000917b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x917B 10180 bytes
SHA-256: 3177300329310f48e2fe4cbeb082662273b2c704dfbb36d3cda476dfa463e518

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