Malicious PDF — malware analysis report

Static analysis result for SHA-256 67702c418ec9a0ac…

MALICIOUS

PDF

70.6 KB Created: 2020-12-24 08:56:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e3e32097889e7d22e416431a1ee02cd6 SHA-1: 0b1d60b0f23bb2c007a333f3e311a0ea71643012 SHA-256: 67702c418ec9a0ac87406744120ae34c053a7851ade946c90a7943fb9acedb5e
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' indicate a strong attempt to direct users to malicious infrastructure. While no scripts were explicitly extracted, the nature of the embedded links suggests an intent to lead users to phishing or malware-hosting sites, aligning with spearphishing attachment tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://cctraff.ru/123?utm_term=2player+games+unblocked In PDF document text
    • https://rafomuvufeja.weebly.com/uploads/1/3/1/8/131856077/f5e608ec.pdfIn PDF document text
    • https://cdn.sqhk.co/fumazuri/dN5jbNn/dinexubiwunuwa.pdfIn PDF document text
    • https://sokonova.weebly.com/uploads/1/3/4/3/134322069/464087.pdfIn PDF document text
    • https://xoverepidagagit.weebly.com/uploads/1/3/4/4/134469055/515e55.pdfIn PDF document text
    • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/3327509.pdfIn PDF document text
    • https://dilomosef.weebly.com/uploads/1/3/4/3/134316650/xutiduripe.pdfIn PDF document text
    • https://gojemafofapuvog.weebly.com/uploads/1/3/2/6/132681271/dupik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zakunafu/sliding_gate_guide_roller.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/menabozunoborilu.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/36578920639.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/toronto_canada_address_format.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/33143538468.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/mean_and_variance_of_discrete_uniform_distribution.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/lemonade_used_car_guide.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5F6 5736 bytes
SHA-256: 774d2bd11715a7b89d4c9105dbfc119956549ce158c80ef27ce86434ca2222a4
font_01_sfnt_off0000e96a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE96A 10760 bytes
SHA-256: fdc365d4a9d101040637b27d3c9c3f603e54cd71e89cc4d542988d0af05f7fc2

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