Malicious PDF — malware analysis report

Static analysis result for SHA-256 29519908ebb7bfb8…

MALICIOUS

PDF

68.6 KB Created: 2021-03-03 11:47:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c550798ada52f1c9bf9f9ba5329e522e SHA-1: 72552e4f8703116b5fffc616a4591684b5c5022c SHA-256: 29519908ebb7bfb857de7c85732172c5abadce390d996007202814424635c0ef
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, and contains an embedded URI pointing to a suspicious domain. The document body, though heavily obfuscated, suggests a lure related to a 'viewing guide'. The presence of embedded URLs indicates an attempt to redirect the user to a potentially malicious site for phishing or further exploitation.

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://soxebez.ru/wix?keyword=viewing+guide+cinderella+man+worksheet+answers
    • http://bibivire.mygamesonline.org/is_the_10_day_green_smoothie_cleanse_healthy.pdf
    • https://cdn-cms.f-static.net/uploads/4382193/normal_603a599d6fce8.pdf
    • https://cdn.sqhk.co/muligumixe/X6ZbUgg/wevatixiv.pdf
    • https://cdn.sqhk.co/nudizodi/YVG8IU9/virtual_assistant_my_planning_firm.pdf
    • http://xitabijasava.getenjoyment.net/predator_generator_6500_manual.pdf
    • http://najetaxu.mygamesonline.org/88784830576.pdf
    • https://cdn.sqhk.co/wuwoxegolewa/M3vghie/moneygram_application_form.pdf
    • https://cdn.sqhk.co/dobopejig/Vrm3Tha/henry_danger_crime_warp_app_download.pdf
    • https://cdn.sqhk.co/fasixazijaz/jjSSpid/66975871499.pdf
    • http://jevafurevozu.mygamesonline.org/words_that_start_with_step.pdf
    • https://cdn.sqhk.co/jozazixefuf/ywjdIjj/67152423509.pdf
    • https://cdn.sqhk.co/gabadifofibo/Pjcgdii/memifod.pdf
    • https://cdn.sqhk.co/wejideduv/icxjegg/strikemaster_ice_auger_replacement_parts.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://bavolonetokibip.rf.gd/simple_spanish_words.pdf
    • http://lavofedelozus.rf.gd/autonomous_underwater_vehicle_seminar.pdf
    • http://tororixiranop.rf.gd/blackmart_alpha_uptodown.pdf
    • http://julisanusifi.rf.gd/proxy_bypass_list_format.pdf
    • http://pujumek.myartsonline.com/25188277233.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c28c.bin
e8e2956b82c5775cd7cef9d8c10c515a60a8b8106491fb45f9ec2d0242454415
pdf-font-stream PDF embedded font (sfnt) at offset 0xC28C 5356 bytes
font_01_sfnt_off0000d4a5.bin
412155601c6e91a4a0b3d9581be62639a017357a47210d9e64005ca70bcab3c0
pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A5 10112 bytes
font_02_sfnt_off0000f745.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xF745 4324 bytes