Malicious PDF — malware analysis report

Static analysis result for SHA-256 0302ed723e696594…

MALICIOUS

PDF

63.1 KB Created: 2021-03-03 19:58:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 00242a461e1643b387a34cc3ef0879a5 SHA-1: 661c0c009ecdb5b80a53349708252d39accc18c0 SHA-256: 0302ed723e696594e546f7dd091fbe420b01701d43f758d4a87451c6d66ae6be
156 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, with one pointing to a URL that appears to be part of a link farm or SEO manipulation scheme. While no scripts were explicitly extracted, the PDF structure and the presence of numerous external links suggest it may be used to redirect users to malicious websites or to host further malicious content.

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://ponafet.ru/123?utm_term=how+to+workout+for+strength+not+size PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4385636/normal_5ff654b281863.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501479/normal_5fd84a2ea48b9.pdfIn PDF document text
    • https://cdn.sqhk.co/vamunidibu/ivhgAjc/57200110487.pdfIn PDF document text
    • https://tudegikugil.weebly.com/uploads/1/3/5/3/135317618/a9ce65cd545.pdfIn PDF document text
    • https://lemusovigezamo.weebly.com/uploads/1/3/1/3/131381045/9462533.pdfIn PDF document text
    • https://bajewenizuku.weebly.com/uploads/1/3/4/4/134475359/zovokobegijin-varuzomiber-veketar-sobof.pdfIn PDF document text
    • https://cdn.sqhk.co/pabelewexo/jwchf9C/nufedikopizuz.pdfIn PDF document text
    • https://jimivisimobud.weebly.com/uploads/1/3/4/9/134901817/wenug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374373/normal_60337bf79aa3d.pdfIn PDF document text
    • https://ralugegab.weebly.com/uploads/1/3/4/8/134888835/ac1ff333644a.pdfIn PDF document text
    • https://cdn.sqhk.co/tukawezezo/jc6Mgh3/goal_en_gb.pdfIn PDF document text
    • https://fosobezi.weebly.com/uploads/1/3/4/8/134898374/3487288.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/jajoxulabojaso/37515473206.pdfIn PDF document text
    • https://s3.amazonaws.com/wetevali/30974938460.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/3620712314.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/vijaromitope.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_off0000bdbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDBF 4956 bytes
SHA-256: 769f5bc234bee4b810472ce44728412416bf833ceaae812819c19accf0bc7320
font_01_sfnt_off0000ceb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB4 9464 bytes
SHA-256: 444bd9d6247261dccd512f15244ed37ce9a4598535186d71165e965ab0b93e00

Open this report in the interactive analyzer, or submit your own file for analysis.