Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb6e3fc1bc082512…

MALICIOUS

PDF

104.6 KB Created: 2021-03-18 00:00:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65b3a8d3e40af5cbe818e70c883e5c1e SHA-1: 7a1feff6a79a3cc8ab83bea180a04852740ba67e SHA-256: eb6e3fc1bc082512237e62f2792fcb2011463ed00884dd23332ab40a2cfb41eb
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to 'resalured.ru', which is flagged as a potential phishing or malware distribution site. ClamAV detection and ML classification strongly indicate malicious intent, specifically identified as 'Pdf.Phishing.Trojan'. The presence of embedded URLs and the overall classification suggest this document is part of a phishing campaign designed to trick users into downloading further malicious content.

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://resalured.ru/wix?keyword=peak+book+pdf+download
    • https://cdn.sqhk.co/febowozefu/gywdYia/us_marine_corps_scout_sniper_school.pdf
    • https://cdn-cms.f-static.net/uploads/4475389/normal_6041c007bd273.pdf
    • https://static.s123-cdn-static.com/uploads/4488592/normal_5fc99735d50b8.pdf
    • https://static.s123-cdn-static.com/uploads/4366405/normal_5ff164065026a.pdf
    • https://static.s123-cdn-static.com/uploads/4470209/normal_5fd05d94ba5ad.pdf
    • https://cdn-cms.f-static.net/uploads/4380871/normal_60238591ceccf.pdf
    • https://cdn.sqhk.co/rowibimibopi/hfjdne6/mcat_2021_dates_international.pdf
    • https://cdn-cms.f-static.net/uploads/4452392/normal_60388f9765eab.pdf
    • http://gojevomarokabe.getenjoyment.net/asbaq_e_najoom.pdf
    • https://cdn.sqhk.co/zokosofu/piahjgf/summer_pockets_nintendo_switch_english.pdf
    • https://cdn-cms.f-static.net/uploads/4365541/normal_6035c865563a7.pdf
    • https://cdn.sqhk.co/lusesito/phjcgh6/bravado_rolling_stones_t_shirt_dress.pdf
    • https://cdn-cms.f-static.net/uploads/4413457/normal_60459dd167824.pdf
    • https://cdn.sqhk.co/gozawelesutu/jjge2Am/jagusuvetumenadar.pdf
    • http://kopogaxepaku.sportsontheweb.net/tixoxenowofet.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/966453d8-87bf-4cc8-908b-1ec8e1bafa03/15714061800.pdf
    • http://nopugorib.onlinewebshop.net/rimigo.pdf
    • https://s3.amazonaws.com/lezerawe/is_diagnostic_assessment_formal_or_informal.pdf
    • https://uploads.strikinglycdn.com/files/d3d841c0-59aa-4341-b69a-19bb661d8a47/the_strength_training_anatomy_workout_ii_download.pdf
    • https://s3.amazonaws.com/fajixe/zumobisozuvobebelewunasix.pdf
    • https://s3.amazonaws.com/kavugusepe/86537065364.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001601c.bin
02eead36b941ffd8041cadfc4ed44c35720857413dc00d586a9da7d8dd9669f7
pdf-font-stream PDF embedded font (sfnt) at offset 0x1601C 5060 bytes
font_01_sfnt_off0001717c.bin
84003b0aa929f99304867a7ce11889abc632c1f1a857988b6204ae69a5a1715a
pdf-font-stream PDF embedded font (sfnt) at offset 0x1717C 10620 bytes