Malicious PDF — malware analysis report

Static analysis result for SHA-256 84ddb9146cae7b6e…

MALICIOUS

PDF

77.0 KB Created: 2021-03-04 12:11:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c3108d7ed251d1bd6c21e551e984387c SHA-1: b01ca5f9bc62af76898885c5251b7082696a934d SHA-256: 84ddb9146cae7b6eca942c24eb52dc22469bd4dc356ed87987afb724a423660f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://vilenefex.ru/wb?keyword=shark%20navigator%20cordless%20vacuum%20walmart PDF link annotation
    • http://kedisuli.iblogger.org/star_trek_beyond_jaylah_music.pdfIn PDF document text
    • https://rolobidixogiru.weebly.com/uploads/1/3/1/6/131637372/2959669.pdfIn PDF document text
    • https://zokelafeg.weebly.com/uploads/1/3/4/8/134889419/pubomixesijul.pdfIn PDF document text
    • http://logefekur.22web.org/varedewegolozovosip.pdfIn PDF document text
    • https://jenajurowob.weebly.com/uploads/1/3/1/4/131408252/xixafemedomituwu.pdfIn PDF document text
    • http://dawuxapi.iblogger.org/4104201845.pdfIn PDF document text
    • https://digonowokeke.weebly.com/uploads/1/3/1/8/131856318/zarisuxowopepe_dafaki_letojaxibarim_susotowujum.pdfIn PDF document text
    • http://excellent-spb.ru/46097651867k497e.pdfIn PDF document text
    • https://tebadigizowi.weebly.com/uploads/1/3/4/1/134109241/gofibipil.pdfIn PDF document text
    • https://wipabobape.weebly.com/uploads/1/3/5/9/135985954/7ba7376e8.pdfIn PDF document text
    • https://kaxalosenawa.weebly.com/uploads/1/3/4/5/134576513/558e4074df2bc.pdfIn PDF document text
    • https://lotatodekimin.weebly.com/uploads/1/3/4/7/134705716/kodogesi_midefodezikud_puxujeg.pdfIn PDF document text
    • http://votixowet.22web.org/cast_of_geralds_game_netflix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xenuduximowub.epizy.com/video_maker_free.pdfIn PDF document text
    • http://nufiwimuzobo.onlinewebshop.net/what_can_you_cook_in_electric_pressure_cooker.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_off0000ee96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE96 5672 bytes
SHA-256: da899b7cf5ec3bd02f644ff81b42d534760bd126d9a1baf1e425785030ad5187
font_01_sfnt_off000101c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101C9 10952 bytes
SHA-256: 4c3a3c8c50aad883faf0bff9d6876aaad740c5177b27fb91a3ca381c3a8fb676