Malicious PDF — malware analysis report

Static analysis result for SHA-256 62bc33897f60e8f8…

MALICIOUS

PDF

76.2 KB Created: 2021-04-11 13:42:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b940b243b2d96175c0d1d2207cb3768 SHA-1: b04f38ba2af123441c4188716adef063bcf384cd SHA-256: 62bc33897f60e8f866a0db0fab8c67fb726c313c6da79ee7fa4d9d8d5811255e
96 Risk Score

Malware Insights

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

The PDF document contains embedded links, one of which points to 'jacksth.ru', suggesting a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to car seat instructions, designed to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jacksth.ru/strik?utm_term=evenflo+car+seat+strap+instructions
    • http://samelike.site/nudefixexowatarukigoztquwg.pdf
    • http://ketotreno.buzz/267774906326a9qy.pdf
    • http://about-fb-support.com/pippi_longstocking_summary_chapter_1b3ycw.pdf
    • https://patelevikukel.weebly.com/uploads/1/3/4/6/134665122/wadez-kodererulizapi.pdf
    • https://nunipotewisi.weebly.com/uploads/1/3/4/8/134892443/tejiwirinu.pdf
    • http://ufenmac.com/lilimipazepedapowaramataealpz.pdf
    • https://cdn.sqhk.co/vilonunufuk/9jbvial/sago_mini_trains.pdf
    • https://cdn.sqhk.co/jitamoxi/gjbLvhc/elite_expert_betting_tips_premium_apk.pdf
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdf
    • https://cdn.sqhk.co/tudusiki/hdCIjaK/kiwisozina.pdf
    • https://soxoxalumowaju.weebly.com/uploads/1/3/4/7/134768556/2bc727.pdf
    • http://reduslimitaly-official.site/does_texas_have_a_sales_tax_on_food300gd.pdf
    • https://tekudijasefemo.weebly.com/uploads/1/3/2/7/132740256/lojiwowo_legewo.pdf
    • http://boldly-grow.com/k5_learning_reading_comprehension_worksheets_first_grade5zh5k.pdf
    • https://cdn-cms.f-static.net/uploads/4420468/normal_6016cfc4c83d9.pdf
    • http://ketosimple.online/age_calculator_premium_apklapf1.pdf
    • http://study-english-04.space/why_is_there_no_power_to_my_lg_washing_machinehvkfr.pdf
    • https://murasujudadalox.weebly.com/uploads/1/3/5/3/135338307/6a1785e.pdf
    • https://cdn-cms.f-static.net/uploads/4486548/normal_5fd79e4f2ef36.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/54acf068-7c7d-4a62-8072-c0c2f068d4fe/lycoming_o_360_a3a_parts_catalog.pdf
    • https://uploads.strikinglycdn.com/files/8f4946d9-78a1-48dd-9661-1c725b2baa9c/fomutepevobifuteb.pdf
    • https://uploads.strikinglycdn.com/files/d39a8558-5db3-4040-918f-09133f253f50/43956914072.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_off0000edf1.bin
0b6c63a3ebdf550682bfc36cf9c73899186f5ab57980d285ba483ffb91965750		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF1 5028 bytes
font_01_sfnt_off0000ff29.bin
97c8acd85cd58a24047d9dc049661ce5e071d3f4ef106bb45d606efb91265662		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF29 10672 bytes

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