Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01ff5a9c0d8a962…

MALICIOUS

PDF

64.6 KB Created: 2020-11-20 09:09:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 6014e0b7ed2e151b394ae23c574d6422 SHA-1: 1e52ba36a06c11626dbbeecc636ec0ac9bf478df SHA-256: c01ff5a9c0d8a9629fd34ec3921ef6fa7a7bedf49c23ce736f0ee8ff5d76de51
214 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to known malicious redirector infrastructure or link farms. The document's content, though obfuscated, appears to be a lure related to sports news, likely intended to trick users into visiting malicious sites. The presence of multiple PDF links and a critical redirector link strongly suggests a phishing or malicious redirection campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffking.ru/aws?utm_term=green+bay+packers+roster+injury+report In PDF document text
    • https://rizadubarezesul.weebly.com/uploads/1/3/4/4/134499036/2e5d9dc5a0ea7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370777/normal_5fb42e51754c7.pdfIn PDF document text
    • https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/322079768.pdfIn PDF document text
    • https://xekigugoraka.weebly.com/uploads/1/3/4/4/134434326/1824355.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381291/normal_5fa2c0a8272bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369919/normal_5fad4bd1b311c.pdfIn PDF document text
    • https://jatuvukaxakepu.weebly.com/uploads/1/3/4/3/134313635/zorineg-zewanupaxema.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367922/normal_5f875be425d49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379736/normal_5fb72e1c5504d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386829/normal_5f93ea87f0ea8.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/zesotat/51272604438.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/communication_skills_resume_template.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_off0000c0e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0E0 5308 bytes
SHA-256: bbeca67a1f87979d8f2310f737e30cd6823aa4919fed983465cabcc140fa3d3d
font_01_sfnt_off0000d30c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD30C 10048 bytes
SHA-256: c5deaa651679aef425608428e32618d4f3590c8f2a75f1dd01c457bd7025d49a

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