Malicious PDF — malware analysis report

Static analysis result for SHA-256 27c196d188c594c1…

MALICIOUS

PDF

80.5 KB Created: 2020-12-05 14:14:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 1cae94459c6e7569f50c849cef51ca91 SHA-1: 7f6bed95a02a310c01ac84328370efdaa191e701 SHA-256: 27c196d188c594c14ffa9cf1931b97e39c2d0a38a7ea0d9a9661b93bf8868a7f
156 Risk Score

Malware Insights

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

The PDF file contains a lure message 'Lifetime com activate' and embeds multiple external links, including one to 'traffnew.ru'. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of embedded links suggests an attempt to redirect the user to a compromised or malicious site.

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://traffnew.ru/123?utm_term=lifetime+com+activate PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4457590/normal_5fbe78339d062.pdfIn PDF document text
    • https://wefogazasu.weebly.com/uploads/1/3/4/8/134880183/sufep-xisogonawivi-seginuganelino-fiwowosebi.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/mezuber.pdfIn PDF document text
    • https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/2502173.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369638/normal_5fc23864e9d5a.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/jozaponi/luwosofi.pdfIn PDF document text
    • https://s3.amazonaws.com/wisatutadi/tafaxuxu.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/xufuwod.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/69122016959.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/core_java_tutorial_with_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7e264ea-29c1-4242-a76a-99edab377559/fresh_hotel_retro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/357fcbeb-7e4d-428d-9d0e-7dea632d0f4e/jesepoxapezokefusame.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/romirekowedugebev.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/free_rent_receipt_template.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_off00010098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10098 4720 bytes
SHA-256: aa9758858884b929b137ec9ff6648bfab3f5de7674ec0c6ecf476dfd11750b79
font_01_sfnt_off000110a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110A9 10872 bytes
SHA-256: c63acc1cca2d6c70eea6963a3e37d7d2b645d1b85e85a9eed653c0a6b58b3f19

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