Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e343d1021cee86…

MALICIOUS

PDF

40.8 KB Created: 2020-08-26 16:59:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e769c8094c0e8b2f5d7b17654bca1a7 SHA-1: 9cf3025f7808e849fba382c162b2d8520859c419 SHA-256: d3e343d1021cee86c2fa9628b0b34845440d2e5723686803483ae2d518aa009f
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a car motor for sale and includes the malicious URL. This suggests the PDF is designed to trick users into clicking the link, which then redirects to a malicious site, likely for phishing or malware distribution. The presence of multiple embedded links, many pointing to Shopify, further supports the link farm tactic.

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=ford+1600+crossflow+motor+para+venda In PDF document text
    • http://files.kasakesari.com/uploads/1/3/1/4/131453348/2019820.pdfIn PDF document text
    • http://guluf.loisfaber.com/uploads/1/3/2/3/132302842/9412562.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/1/0432/4474/8950/files/xuvemubivuwelajur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5166/3012/files/8086_assembler_directives.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/cardiopatia_ischemica_cronica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5996/1237/files/jezizesagutanuluvapemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8199/0293/files/bascom_avr_programming_with_practical_projects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5353/9747/files/bikhre_moti_urdu_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3550/8392/files/nitenopipunafokovulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/73688664510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8828/8670/files/43633932184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4219/3058/files/dibekevek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3323/0488/files/40504850949.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_off00004aaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AAF 5496 bytes
SHA-256: 2fc170a5cd1023c1c75a4a7044c0e28f1548615d0e0e1435e4277625ed513fce
font_01_sfnt_off00005d5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5B 13796 bytes
SHA-256: 49fee7e782b144b8f6dba34a7cb5fa58174d5ac7ce6ca5d9c15f9ee6f6de1438
font_02_sfnt_off00008869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8869 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c