Malicious PDF — malware analysis report

Static analysis result for SHA-256 14b525c2646960ff…

MALICIOUS

PDF

85.6 KB Created: 2021-04-05 12:55:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3c884edce3c8b56c15a396e0ae14791e SHA-1: 584a0b9b938fbacb9d8dda973d61ac645405e840 SHA-256: 14b525c2646960ff476cfdb7b9972fc93c318d3c8e2a030b91e92eceb1b46d4f
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xajibur.ru/strik?utm_term=draw+tite+brake+controller+instructions PDF link annotation
    • https://cdn.sqhk.co/sotisajen/je5jhig/hospitals_near_me_phone_number.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489263/normal_5fe307d91c993.pdfIn PDF document text
    • https://cdn.sqhk.co/fogizotufijo/Hhelejf/free_quotation_template_south_africa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480585/normal_5fe31b8f67f6f.pdfIn PDF document text
    • http://flowerport.market/lipegu4jsvt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378604/normal_5fcac09639662.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401716/normal_600cec8dc47ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407994/normal_60692f2e12ce4.pdfIn PDF document text
    • https://cdn.sqhk.co/rovovuroj/idjcIia/85997749038.pdfIn PDF document text
    • https://cdn.sqhk.co/bikegola/jiLBYid/24911829401.pdfIn PDF document text
    • http://fdvsefwfrw.space/tupilxvi7j.pdfIn PDF document text
    • http://reduslimitaly-official.site/thyroid_treatment_guidelines_uk1zv38.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455642/normal_5fe128fa1a0e4.pdfIn PDF document text
    • http://sberin.xyz/wedding_seating_plan_templatenf3m7.pdfIn PDF document text
    • http://kuvilawodir.22web.org/1581107511.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451752/normal_606152c558b84.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/towakog/josiral.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/43369795903.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/synonym_for_training_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/lezuti.pdfIn PDF document text
    • http://lomonogugala.epizy.com/66211584077.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/vusukotunapekazurevefu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB0C 5088 bytes
SHA-256: 2db55629493682daab83a796332d4f542533b235fe7b7d8fc825aa1b56f90144
font_01_sfnt_off00010c80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C80 11264 bytes
SHA-256: 44d7432be22a0ed5e6a85a6e0957597de991c54bba24386f667d23f25df58225
font_02_sfnt_off0001330d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1330D 16292 bytes
SHA-256: 635a7a695b4845d9f758954c5c467052b41286ac923c0e8455a1af98f4f760a3

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