Malicious PDF — malware analysis report

Static analysis result for SHA-256 7703140a247aa95a…

MALICIOUS

PDF

87.2 KB Created: 2021-03-22 19:48:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 0119ce0ef161154c42688ca1d5bfea7a SHA-1: 1ee33285d572fe51686ce9214f164955d5d20357 SHA-256: 7703140a247aa95a035f2a0f9c091f01e86c12b0c6f03cf67f6176d1b650870b
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains a large number of external links, suggesting it is part of a link farm or phishing campaign designed to redirect users to potentially harmful websites. The primary external URI points to a domain associated with potentially 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://vilenefex.ru/aws?utm_term=is+janome+sewing+machine+good PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4383131/normal_5fe0c398c1211.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491705/normal_602b3b9228a51.pdfIn PDF document text
    • http://miraluvofizobe.medianewsonline.com/abbyy_transformer_download_crack.pdfIn PDF document text
    • http://wuroguredogir.getenjoyment.net/small_business_ideas_in_tamil.pdfIn PDF document text
    • https://cdn.sqhk.co/gunakawujo/fgiignT/tower_heroes_casual_mode.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377381/normal_60080352a24b8.pdfIn PDF document text
    • https://cdn.sqhk.co/gogerazina/hbhiVib/cleo_mod_san_andreas.pdfIn PDF document text
    • http://paxezot.getenjoyment.net/lafunasisux.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490746/normal_5fcecfa7b974d.pdfIn PDF document text
    • http://rexuwoxaga.sportsontheweb.net/75791740770.pdfIn PDF document text
    • https://bawekiseboluxis.weebly.com/uploads/1/3/5/3/135327810/kepafejogi_tufagogotil_kadorifi_zavedipam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409393/normal_5fcefdeabf060.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380882/normal_6002980a8ea34.pdfIn PDF document text
    • https://nebemono.weebly.com/uploads/1/3/4/3/134331812/2a2e49fa37e7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6f2fb29c-15f2-4b08-b525-3eb91a7f0a41.filesusr.com/ugd/c3548c_62a7770163884027a0fb7300be597bc5.pdf?index=trueIn PDF document text
    • https://b595a6f9-6bcb-48d8-acfc-7cb8c696cf55.filesusr.com/ugd/21f311_c4e1981f6fdb4e1f9f7b6038b959bb66.pdf?index=trueIn PDF document text
    • http://xiniwipilanaju.atwebpages.com/wular.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_off000117e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117E7 5328 bytes
SHA-256: ee0de77b9d3eada3507e257db1aab7353fe217a26ddeea455c0608f1eba000ff
font_01_sfnt_off000129fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129FA 11132 bytes
SHA-256: 5c5eaf5d0bd5859ca9b21499a95d26641f2712b28f93c86e86cc18d69306e4bb

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