Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba5a0067798805a1…

MALICIOUS

PDF

77.7 KB Created: 2021-02-26 17:05:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: f56c61bda99c34e0e557a21fb147b773 SHA-1: 1be0eda7d06117f7b1f080ad43f78a5d5405cb61 SHA-256: ba5a0067798805a1c37692116471517701b738e2db24d4901e7a38df57eca359
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'fokemale.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, appears to be a lure related to 'constant mesh gearbox advantages', suggesting a phishing attempt to direct users to malicious sites.

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://fokemale.ru/wix?keyword=constant+mesh+gearbox+advantages PDF link annotation
    • http://wowit.pro/fonibatuzudodomopuv0nbv7.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/lafemogidelotafogizib.pdfIn PDF document text
    • http://intekzafast.online/294171883303kirx.pdfIn PDF document text
    • http://rokoxuj.iblogger.org/libro_de_los_sueos_tmbola.pdfIn PDF document text
    • http://gunurovidoz.iblogger.org/how_do_you_change_the_time_on_a_armitron_digital_watch.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450415/normal_5fd32c977cf22.pdfIn PDF document text
    • http://tevutubiwij.getenjoyment.net/68994621910.pdfIn PDF document text
    • http://liwurivosopap.medianewsonline.com/altered_carbon_season_1_episode_4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gedexim/36716744906.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/ansul_r_102_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/lawn_tennis_racket_buying_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/adlinkfly_6._4._0.pdfIn PDF document text
    • http://dovanokeji.epizy.com/87840128758.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/dvla_number_plates_retention_form.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/vidmate_apk_for_ios_12.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e68c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE68C 5236 bytes
SHA-256: a8a215ec868f7469ab25622fed99fbeeb32d1038bfc86e542d3e69be35bdfed0
font_01_sfnt_off0000f826.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF826 10328 bytes
SHA-256: 93622eefe8db91b8a9e53b3c4b9f82f68e484f954637589ebb2bbf2164c0e7cd
font_02_sfnt_off00011b82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B82 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.