Malicious PDF — malware analysis report

Static analysis result for SHA-256 e66f29e937d6193e…

MALICIOUS

PDF

62.0 KB Created: 2021-02-22 06:23:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 7a75c43ce4b161ab7d7522d3cad88328 SHA-1: c9344b15b24fa7fa5f263214a5a493adca6eec40 SHA-256: e66f29e937d6193ed81839e9cdf7875bb8e74ffc23c320e9aaba6e312857832b
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical detection for a link farm and a high ML score. The embedded URLs and the PDF structure suggest it is part of a phishing or scam campaign, likely attempting to redirect users to malicious content. No scripts were extracted, but the PDF's nature points towards a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/123?utm_term=jolly+phonics+activity+book+2+pdf PDF link annotation
    • https://cdn.sqhk.co/sisadenev/khRheM1/slice_factory_menu_elmwood_park.pdfIn PDF document text
    • https://kesevaze.weebly.com/uploads/1/3/1/3/131383297/mokoniramu.pdfIn PDF document text
    • http://about-igsupport.com/gozuzejegvmhxy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420767/normal_5ffe6cc7a31e5.pdfIn PDF document text
    • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/latabimefu-xoluxu-lozerosizet-divajiduv.pdfIn PDF document text
    • https://wazalopa.weebly.com/uploads/1/3/0/8/130814586/a9c252b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471091/normal_5fc913569481e.pdfIn PDF document text
    • http://creampiepow.club/855220754445ujgc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424672/normal_5fcbd42f1cad0.pdfIn PDF document text
    • http://smartradiobf.ru/bottled_water_filtration_process7kmo8.pdfIn PDF document text
    • https://ximepovefuvaxoj.weebly.com/uploads/1/3/1/8/131856443/jekogit_tixawaxivape_xutorosaminopo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423429/normal_5ff2867793b97.pdfIn PDF document text
    • https://cdn.sqhk.co/mewowoji/Bgdjaij/yong_heroes_best_class_2020.pdfIn PDF document text
    • http://pomirkapa.site/bose_soundsport_earbuds_androidhwwpp.pdfIn PDF document text
    • https://vuwugaletop.weebly.com/uploads/1/3/4/5/134588193/rovudiligeravoreti.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386851/normal_5fcddcc0be914.pdfIn PDF document text
    • https://kagivosivozavex.weebly.com/uploads/1/3/4/7/134746508/9823565.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000b66f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB66F 5632 bytes
SHA-256: d87322ac889b95198f802dbfdc838245a2f94530a6ef28b52c0b891c297e34d2
font_01_sfnt_off0000c9a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9A3 9780 bytes
SHA-256: 896445bf97e4959f2bc1d3abf5a081484de4c38adcadd3382778e30e281efcf5

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