Malicious PDF — malware analysis report

Static analysis result for SHA-256 c64bbefa0e619a7f…

MALICIOUS

PDF

64.4 KB Created: 2020-08-22 23:13:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92bb4087c8cf67c6bca8b99b38285cd0 SHA-1: 902f34b08f7ea6f0623a96ddd46becd9d24020c8 SHA-256: c64bbefa0e619a7f56a00a0e52f9466e62c750a819ed1fa9cc78e24ca5600c2b
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to benign-looking documents hosted on Shopify. However, one critical heuristic identified a link to a known malicious redirector, ttraff.com. This suggests the document is part of a link farm designed to obscure the ultimate malicious destination. The presence of the malicious redirector URL indicates a phishing or social engineering attempt to lead the user to harmful content.

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=jdbctemplate+callablestatement+rowmapper In PDF document text
    • http://lupodenop.berksonrealty.com/uploads/1/3/2/7/132740214/1944928.pdfIn PDF document text
    • http://rusigepok.kamaroufi.com/uploads/1/3/2/6/132682156/63b6a2d1a0.pdfIn PDF document text
    • http://notafaxep.cityofhopechurch.org/uploads/1/3/0/9/130969761/09a7c352cd.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/1/0433/2106/5640/files/application_for_child_passport.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5976/3617/files/direct_vs_indirect_cash_flow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4146/2174/files/upper_in_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5774/8897/files/organisation_of_shoot_apical_meristem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5796/1374/files/43857041511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/lasuwivujabepodaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2821/5968/files/neet_biology_practice_papers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0412/3557/files/xefokegemagazetub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5366/1851/files/24376703313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9885/5840/files/20_lectures_on_algorithmic_game_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0349/5071/files/osteomyelitis_guidelines_idsa.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 2

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_off0000b098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB098 5440 bytes
SHA-256: 3ed965604fdfb95610b247b412a3e9f08603dac63e18f76add55fd71408e38ac
font_01_sfnt_off0000c309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC309 16148 bytes
SHA-256: 46db861a782630de7ff34a30e689171ec21a9f0b3066d3557acf85f4756b0cc4

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