Malicious PDF — malware analysis report

Static analysis result for SHA-256 52296c5d2a8288dd…

MALICIOUS

PDF

75.3 KB Created: 2020-11-16 12:25:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d2d32ff590365fd5ae86000cbb52d3d2 SHA-1: 5d7a1df59fba23eff38e2d6cee155006e6862477 SHA-256: 52296c5d2a8288dd51739795cba07b98a37d96af59520765a0e6139949627684
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-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://trafficel.ru/strik?utm_term=used+to+would+exercises+b2 PDF link annotation
    • https://xogaketur.weebly.com/uploads/1/3/4/5/134593565/850fa2dd70b34.pdfIn PDF document text
    • https://dubutabinagi.weebly.com/uploads/1/3/4/4/134441981/sisetetej.pdfIn PDF document text
    • https://mozosuroje.weebly.com/uploads/1/3/4/4/134456199/5337458.pdfIn PDF document text
    • https://zurareren.weebly.com/uploads/1/3/4/5/134583426/606e4c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5af020ba-4fef-40c6-91df-7f0d842e9b60/93019061576.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/pokeball_plus_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/richard_bandler_john_grinder.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/rrisd_calendar_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/definition_of_multilingualism_by_authors.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/78631864016.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/64411779702.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_off0000e991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE991 5144 bytes
SHA-256: 65d832ed612a28b21e97ca9b98b978aea40c8dd365c7435a709aec7dd63b134b
font_01_sfnt_off0000fb3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB3D 11508 bytes
SHA-256: 8c2a07bd8c9d4670280131bc901af8c9d5adab44f36ebab78b9ad548ce8fbe81