Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b61c66badce5b5d…

MALICIOUS

PDF

69.0 KB Created: 2021-02-15 14:47:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9491bd05ebefa66f10de6af5948fe579 SHA-1: cd7089aa641edb2839a02ec2ac88f0f55c2b289f SHA-256: 2b61c66badce5b5dd8970bce771bb18b4b35cc58ab743c4dde9b5cb3fb5a8cb7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://seumenha.ru/wix?keyword=future+ft+ciara+turn+on+the+lights+lyrics PDF link annotation
    • http://zaxunux.iblogger.org/video_editor_android_source_code.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380531/normal_6007d667dc6e2.pdfIn PDF document text
    • http://winwites.space/national_geographic_marble_run_large6w591.pdfIn PDF document text
    • http://keepxufi.space/convert_to_word_doc_adobe_readeryjvxo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366947/normal_5feb790e1afc5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368229/normal_5fcb263e56afd.pdfIn PDF document text
    • http://vannlight.ru/illusion_connect_wikinc6m6.pdfIn PDF document text
    • http://sputnews.com/voluntary_manslaughter_sentencing_guidelines_missourik228u.pdfIn PDF document text
    • http://leafester.online/vomipelalasebivokugejig8unb1.pdfIn PDF document text
    • http://teren.fun/it_ch_2_parents_guideo32yn.pdfIn PDF document text
    • http://beremoter.online/6919532623695c5x.pdfIn PDF document text
    • http://micrometer25bill.site/75678062643bfo9o.pdfIn PDF document text
    • http://upsbox.ru/i_lava_you_piano_sheet_musicsa9bf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tutasujal/beforesutuzoxuwenujuga.pdfIn PDF document text
    • http://veluvuwipigunuw.rf.gd/yearly_calendar_2018_excel_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/crps_2018_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/online_magazine_software_free.pdfIn PDF document text
    • http://wikimenuvebiz.epizy.com/37847090910.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/38379525685.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_off0000d280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD280 5200 bytes
SHA-256: 9f7623b1cca67816c96e2f0ae04840d694592d11c9fc81edcb762dccf1450bf5
font_01_sfnt_off0000e43a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE43A 10088 bytes
SHA-256: dccb5479f8a7b5e5cccaafb33ccedb1c13cb997ed470ac7741030639c0247e60