Malicious PDF — malware analysis report

Static analysis result for SHA-256 f505a584d36dd6fc…

MALICIOUS

PDF

74.4 KB Created: 2021-02-18 05:27:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9a3e1e1466c9d178f8ff599a01753b71 SHA-1: 01001eb945657d7195841115f79f03803602ad81 SHA-256: f505a584d36dd6fc2b670b1b0cac07476f387de63b77e2cf7d334d84840cbd9d
96 Risk Score

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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/123?utm_term=how+to+change+ink+cartridges+canon+pixma+mg6250 PDF link annotation
    • https://cdn.sqhk.co/zebasama/2pigfjj/como_usar_uber_en_barcelona.pdfIn PDF document text
    • http://nedabemimekoz.iblogger.org/67368450281.pdfIn PDF document text
    • https://zidukatuf.weebly.com/uploads/1/3/0/7/130775563/jukaxugigoxinu-xamamozuz-dexorupuwa.pdfIn PDF document text
    • https://kamedewogivazu.weebly.com/uploads/1/3/4/0/134096977/add11.pdfIn PDF document text
    • http://gedawirij.66ghz.com/37904659440.pdfIn PDF document text
    • https://cdn.sqhk.co/ramowejub/jbVOSha/43017155566.pdfIn PDF document text
    • http://mebesovinu.22web.org/komoka.pdfIn PDF document text
    • https://duxudalo.weebly.com/uploads/1/3/4/8/134866109/likape.pdfIn PDF document text
    • https://gesamuju.weebly.com/uploads/1/3/1/4/131453574/nofog.pdfIn PDF document text
    • https://nonejekorozu.weebly.com/uploads/1/3/4/1/134108542/mesurapupanaz_vixegelem_ketilosufulefi_nivepewise.pdfIn PDF document text
    • http://olx-delivery.cc/keurig_vue_packs_vs_k_cupsk42sr.pdfIn PDF document text
    • https://cdn.sqhk.co/sadetujadufi/jiajcjc/fury_wardaddy_death_scene.pdfIn PDF document text
    • https://sowidokobixu.weebly.com/uploads/1/3/1/8/131856306/gepipuku.pdfIn PDF document text
    • https://cdn.sqhk.co/nutewakizi/jhegiE9/97872737727.pdfIn PDF document text
    • https://sagudazotimoja.weebly.com/uploads/1/3/4/7/134753003/fizukisowal-kivigupipozot.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/Njcgjmq/manchester_smash_my_hero_academia.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/labitajaxatufib/tuna_fishing_report_coos_bay_oregon.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/technical_report_writing_book.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/11549181856.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/introduction_company_letter_template.pdfIn PDF document text
    • http://zumosupol.epizy.com/80286743501.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_off0000e345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE345 6192 bytes
SHA-256: 7a5f13a319cb350a5ab38b143370f7dc35912059635f1b62044cb6e08c3eceee
font_01_sfnt_off0000f849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF849 10528 bytes
SHA-256: aa1f950d235798a65ae4f19f323bdfb58822a4d3984ebcfc7a06600ea1de7753

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