Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d08eea8b43680b1…

MALICIOUS

PDF

73.7 KB Created: 2021-01-09 01:38:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 5b037e7754ebd3c11d62f31043c76783 SHA-1: 7d6139041e01ddf812866e64b1158b218255b099 SHA-256: 6d08eea8b43680b1fb1e363a404c15ec4e78e0384c6e668deca61e423bd9b6d3
156 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. The file contains a large number of external links, many pointing to PDF files hosted on various domains, suggesting a link farm or redirection mechanism for phishing or malware distribution. The presence of embedded URLs and the overall structure strongly indicate a malicious intent to redirect users to potentially harmful 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://trafficel.ru/123?utm_term=questions+are+the+answers+marathi+pdf PDF link annotation
    • https://cdn.sqhk.co/jekurona/iUhe2Lt/bepukofiposotizeririboke.pdfIn PDF document text
    • https://cdn.sqhk.co/farukisinu/fdEii4Z/best_digital_marketing_courses_coursera.pdfIn PDF document text
    • https://cdn.sqhk.co/zolokike/DghNzjf/tamapefef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411228/normal_5feec19a2be73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421943/normal_5fa6c22caea46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488101/normal_5fb953812440d.pdfIn PDF document text
    • https://cdn.sqhk.co/rosavuzezig/Rgjh0nT/conexiones_inoxidables_del_norte.pdfIn PDF document text
    • https://cdn.sqhk.co/fedelubu/VjqCVZU/significance_of_triple_alliance_ww1.pdfIn PDF document text
    • https://nurivotewifigex.weebly.com/uploads/1/3/1/1/131163684/9bc9cee.pdfIn PDF document text
    • https://cdn.sqhk.co/wevujawej/InOB2hd/life_is_strange_2_dynamic_theme_ps4.pdfIn PDF document text
    • https://cdn.sqhk.co/wemonamo/uhdqjbw/how_to_use_hand_drill_kit_dayz_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/ij9RhfU/walking_dead_zombies_evolve.pdfIn PDF document text
    • https://cdn.sqhk.co/nixafusoda/ddVhdic/gujunitamus.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/mogedozara/datepickerios_date_format.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_off0000e2e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E8 5400 bytes
SHA-256: 96f151aaaaed4a9f1d042a65582395b8b6ce9950f5801fb7c12b608a7a1878e0
font_01_sfnt_off0000f531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF531 10640 bytes
SHA-256: 8d7e80dab737df5f4f716349252c7e3ca5b2435a2c7446d697e522ba732ad6b9

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