Malicious PDF — malware analysis report

Static analysis result for SHA-256 de885df7d6554fb6…

MALICIOUS

PDF

71.5 KB Created: 2021-02-27 06:01:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cec50a1d47476adc3a133359c87368ae SHA-1: ea8e35ed22bdb45260c57214dcdcf266b9af00cd SHA-256: de885df7d6554fb6ad000555b54e0d5685c4f1ac15e089fa66ade219afd7d33f
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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://mezovuduw.ru/wix?keyword=outlook.com+sign+up+page PDF link annotation
    • http://lifeit.pro/nelikosipewunijuvuzarex1cau.pdfIn PDF document text
    • https://pirulilepeno.weebly.com/uploads/1/3/4/0/134040853/6010804.pdfIn PDF document text
    • http://puxefesezosowej.22web.org/the_time_travelers_wife_full_movie_in_hindi_free_download.pdfIn PDF document text
    • https://duzamalati.weebly.com/uploads/1/3/5/9/135986709/d6ad710bed.pdfIn PDF document text
    • http://natorg.fun/hp_m452dw_service_manualv5dr4.pdfIn PDF document text
    • https://regezubigif.weebly.com/uploads/1/3/5/3/135320660/8ef8a56ffbe.pdfIn PDF document text
    • http://form-lnstagramverifiedbadges.com/2013_dodge_challenger_srt8_performance_partsx8tma.pdfIn PDF document text
    • http://nuzenupezebep.iblogger.org/chalkboard_template_photoshop.pdfIn PDF document text
    • http://naxiramomamaz.66ghz.com/app_to_movies_on_firestick.pdfIn PDF document text
    • https://dipofivebizog.weebly.com/uploads/1/3/2/7/132712563/juwividu-joteri-jonarakifebi.pdfIn PDF document text
    • http://help-service-support.com/88186283918cvhh.pdfIn PDF document text
    • http://creamspait.xyz/7935419951q01yj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pudekixepubaz.epizy.com/pagakoruradosowofu.pdfIn PDF document text
    • http://wogokafen.epizy.com/78757450646.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/30902516034.pdfIn PDF document text
    • http://xifedesekelogu.epizy.com/zujitagibar.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/85328499931.pdfIn PDF document text
    • http://nanoxamovafosox.epizy.com/att._net_email.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/naxolubifiv.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/firmware_samsung_j7_2016_nougat_indonesia.pdfIn PDF document text
    • http://reditavipesef.rf.gd/ldr_sensor_datasheet.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_off0000dc7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC7D 5280 bytes
SHA-256: bc8eeb58e78c205b45922d517a46dc6ed22a8fa45ee78ab35da32f3a75bca4e4
font_01_sfnt_off0000ee6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE6D 10080 bytes
SHA-256: 8082eb623f6bfa33589881a5c7623259e84f8fdbc2145c80ffb3efefef558e3b