Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f65a93979f4a68…

MALICIOUS

PDF

43.5 KB Created: 2020-08-20 19:40:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5aee0bf13c89273b65562c2458c68974 SHA-1: aec6ff96f34b008399b78211d7609467d85650e1 SHA-256: e1f65a93979f4a68dd4ef1cfc2fefae87d44eb45c621c32f5d5e4ebb0b543a7a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a mass of external links, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Vw golf mk1 parts manual' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The heuristic firings confirm the presence of malicious redirector links and a link farm within the PDF.

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.ru/pify?keyword=vw+golf+mk1+parts+manual In PDF document text
    • http://files.tracysboats.com/uploads/1/3/2/8/132815175/segevusesot_dojotiwakakasun_tonajudalimopum_mevep.pdfIn PDF document text
    • http://files.mammothnest.com/uploads/1/3/1/4/131483662/7997212.pdfIn PDF document text
    • http://files.theshamandoctor.com/uploads/1/3/1/3/131384289/10a6375.pdfIn PDF document text
    • http://files.dhammagalleria.com/uploads/1/3/2/7/132740417/7132813.pdfIn PDF document text
    • http://wugaj.mikesconstruction.com/uploads/1/3/1/1/131164250/998633ddbaac79d.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/1/0427/9736/7452/files/sixujuwowumisoruxufezut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/kepogexif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8501/1871/files/zoveteromijipefibog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/sapifafakotajobam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9437/6605/files/99890939051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9102/4277/files/nibutagevukewavujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4835/2406/files/formule_pour_calculer_l_age_en_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2163/7544/files/17267234954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9282/0647/files/eva_foam_sheet_white.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/zamisimaruvifom.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_off00006325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6325 5392 bytes
SHA-256: 005396cc0c9b6d7c5b3455351adcd68ef8bd4c6256da329c62704a7590de1ecf
font_01_sfnt_off00007589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7589 13436 bytes
SHA-256: 682e15d5a3085d32d7aed3ac32a235b7ed19b2c885e03da01e755e1854939337

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