Malicious PDF — malware analysis report

Static analysis result for SHA-256 2705cc326a0cd0b1…

MALICIOUS

PDF

49.6 KB Created: 2020-11-18 14:51:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 99a253903bb3b23466d809a4bf1bdba2 SHA-1: 5e3553bc8eb1b8726f245c39f9110ad6783bf582 SHA-256: 2705cc326a0cd0b1842d57b79797b3118bb119a2ed9b33deeb0e8f249092c041
212 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, including a critical link to known malicious redirector infrastructure at 'https://traffmen.ru/aws?utm_term=agnisakshi+malayalam+movie+songs+free'. This suggests a phishing or malware distribution attempt. The presence of numerous PDF links, some pointing to S3 buckets, indicates a potential link farm or SEO manipulation tactic. No scripts were extracted, but the PDF structure and embedded links strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9421

Heuristics 4

  • 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.
  • 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://traffmen.ru/aws?utm_term=agnisakshi+malayalam+movie+songs+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4376404/normal_5fad405445093.pdfIn PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/2b80a9.pdfIn PDF document text
    • https://godowipi.weebly.com/uploads/1/3/4/5/134520373/6226112.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381091/normal_5f8fa665d14ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379219/normal_5f91836d390c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379483/normal_5f8dc896084e4.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/hip_hop_listener_demographics.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/vifutelomoxaforoli.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/colour_atlas_of_medical_bacteriology.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/pisowivusiputitebubojo.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/bb_cyber_news_google_sites.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/bibetokelirukuteva.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/38765837823.pdfIn PDF document text
    • https://s3.amazonaws.com/mazugezijap/difupa.pdfIn PDF document text

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