Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b0d0b50264e5bc2…

MALICIOUS

PDF

90.1 KB Created: 2021-02-25 04:37:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9d38c59b67213f60cab4b1fa98bc699c SHA-1: 24ecde3eed473598b92ad2792488c58144d7450f SHA-256: 2b0d0b50264e5bc20e3d94ce8c44ab683ad96e7e2a8e3172d68ddb6dcf74116e
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of external links, many of which point to other PDFs, suggesting a link farm or SEO poisoning tactic. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. The embedded URLs are the primary indicators of compromise, directing 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://baarspo.ru/award?keyword=how+to+wind+a+bobbin+kenmore+sewing+machine PDF link annotation
    • https://gexemuxu.weebly.com/uploads/1/3/5/3/135394015/gubupo.pdfIn PDF document text
    • https://cdn.sqhk.co/muzolorakow/gapjbgg/zombie_hunter_toxic_skull_knife.pdfIn PDF document text
    • http://uggi-ugg.com/48611162032n8xmf.pdfIn PDF document text
    • https://sizelelam.weebly.com/uploads/1/3/4/8/134867910/pubuxa_nerowemetojejuj_xudagowamiwa_surifajaw.pdfIn PDF document text
    • http://strapslap.online/does_fruit_pectin_have_glutentlttl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452173/normal_6017c423363dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379844/normal_5fe81f3d30694.pdfIn PDF document text
    • http://pribor-poverka.site/computer_systems_randal_bryantjc0r9.pdfIn PDF document text
    • https://cdn.sqhk.co/voromerubagu/YiephiV/bass_booster_pro_app_for_android_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/fiporalisu/jgcAijX/precolonial_history_of_nigeria.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443610/normal_5ff5a6597fc85.pdfIn PDF document text
    • https://cdn.sqhk.co/fufigavaki/hjfFdhb/fojemukasufu.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/lusegokaves/lefajobuvabisegukolebat.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/xonabajulunosuvexalidawa.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/rajasthan_girdawari_report.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/93907140528.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/13320264782.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_off00012417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12417 5576 bytes
SHA-256: 7cb7c32d5cecd0a403af59d3a76482184b326add4ff969088e3fea6303c053ce
font_01_sfnt_off000136f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136F2 10476 bytes
SHA-256: 06c3302e91dec76b73f1e891feb536d86d1068c50fb63cc64028e3b670a2c87f

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