Malicious PDF — malware analysis report

Static analysis result for SHA-256 95803e5571fab706…

MALICIOUS

PDF

70.5 KB Created: 2021-01-13 15:12:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e6b9e0a17cc4de427edb4a37e89adaf2 SHA-1: cebcb35865e33093210bd9b3c54b14880db1c6f2 SHA-256: 95803e5571fab706feb940d76d25f7b99ac4edb87ed8b2241c9cd3b29b4d1fd7
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm designed to redirect users to external sites. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, with the primary malicious URL being https://traffset.ru/123?utm_term=red+dead+online+money+glitch+june+2020. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit users through deceptive content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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://traffset.ru/123?utm_term=red+dead+online+money+glitch+june+2020 PDF link annotation
    • https://cdn.sqhk.co/tavikalamo/hegccwQ/how_to_download_xfinity_stream_tv_on_firestick.pdfIn PDF document text
    • https://gudagomafefaxer.weebly.com/uploads/1/3/4/5/134523608/paxowipilu.pdfIn PDF document text
    • https://site-1176577.mozfiles.com/files/1176577/viwiwedozipenet.pdfIn PDF document text
    • https://jamobosis.weebly.com/uploads/1/3/4/6/134684796/5110214.pdfIn PDF document text
    • https://jilefufut.weebly.com/uploads/1/3/4/1/134109271/wulefodon-ronifalowe-zuxolutole.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/wopari/13751371509.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/storekeeper_job_description_sample_template.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/physics_electricity_and_magnetism_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/watogurera.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/luponiwefediluwul.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_off0000d7db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7DB 5536 bytes
SHA-256: 109efcab2a5b40438319a8dc1c06de4d8e8cc988733d313c21de139e9d1eb249
font_01_sfnt_off0000eaa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA2 10028 bytes
SHA-256: a22de0a700522853422ab2cc9207c2926c4d76035ecb503885d34c3575a4fd22

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