Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5297e20b153da0e…

MALICIOUS

PDF

43.8 KB Created: 2020-08-04 03:54:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f4baf37fe4e656f90acb2b5d50ffc3b SHA-1: e63b8efc27fd930a1abe602f02df5af7128f4289 SHA-256: b5297e20b153da0ef1d0ba5045f48e330a4ddb781410f72e34667ea51a9226d2
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=synonyms+for+overused+words+pdf. The document body, though heavily obfuscated, contains this URL, suggesting a phishing or redirection attempt. The ML classifier strongly supports the malicious verdict.

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=synonyms+for+overused+words+pdf In PDF document text
    • http://files.smokeandfirecigars.com/uploads/1/3/0/7/130775361/dceb93437117fcb.pdfIn PDF document text
    • http://files.barakakorea.com/uploads/1/3/0/7/130740118/rodamot.pdfIn PDF document text
    • http://files.aloenottingham.com/uploads/1/3/1/4/131484328/5758696.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/1/0428/4183/3635/files/39017478170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2874/1285/files/sim_city_4_torrents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/gefadogotiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9445/0078/files/93591728750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2266/1278/files/15282092687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4828/files/xurokemanevavep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6491/8165/files/47264926744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1478/1085/files/xabakegus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/daronuvixerivaratuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5685/6230/files/binitewutowimarejivubibup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7892/7011/files/wonepivovuwumosutup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/pexowezigifubabozar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9148/3032/files/jogemitafovaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3170/8316/files/91694313078.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_off00006dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFB 5300 bytes
SHA-256: 56f6297e31e16211ba6449c3078cee3b00782c4dcc9b15da1322f12d24f15c9e
font_01_sfnt_off00008011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8011 9952 bytes
SHA-256: 9ae8959545de4e21d5dcfb632f24f9b16cdfd73971fbe8eb4b0f9014b0ce3905

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