Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f0f26b71cd553a0…

MALICIOUS

PDF

69.1 KB Created: 2020-12-20 09:32:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f09822095b20f6f2d44db39ff2c98880 SHA-1: 13596ead353b34db5d4c50c833bc27da3f2bffc5 SHA-256: 2f0f26b71cd553a06fde28ac4ad47dc9cb06d1708fe02cf407e39feda09adeb6
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 0.9998

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://trafffi.ru/123?utm_term=pubg+apk+mod+no+root PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4483082/normal_5fdcb3b2c8c27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411501/normal_5f9bad1fbad0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447669/normal_5fce6acf977cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382949/normal_5f9db2345103c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447270/normal_5f9f81cba1c40.pdfIn PDF document text
    • https://sikewebuki.weebly.com/uploads/1/3/4/3/134387003/jamigevesa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377933/normal_5f8c721d7844d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382789/normal_5f98598d291c2.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/pasawe/audacity_windows_7_32_bit_free.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/auditoria_forense_en_bolivia.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/mbti_16_personality_types.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/525ff176-5b84-4012-810d-67e1ede55f74/angry_birds_star_wars_rebels_characters.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/raiders_injury_report_week_8.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/number_line_addition_worksheet_grade_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7eaf46f4-da6a-421a-8e3f-4f742e870b77/curly_bob_wig_uk.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_off0000d187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD187 5276 bytes
SHA-256: 7c429f80c18e8d8ed8598cce2873b51eb35997685f10b84db2f2ad487eb9fcc5
font_01_sfnt_off0000e362.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE362 10788 bytes
SHA-256: 1be5d9c8d6022b17d61a658e3ecd6c67927775828dda6691e6580326c379629f