Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dc24b322e001aa6…

MALICIOUS

PDF

71.0 KB Created: 2021-02-21 23:10:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 23c9b857d01b8b6a8d4d91547741fbcf SHA-1: 3da5b7d0fda9e3e0a374197dad9d7a264dd4847b SHA-256: 8dc24b322e001aa69e4e9c0d8ef8e3a10f5ba210f897d543f810aab06048817d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wb?keyword=canon%20vixia%20hf%20r800%20remote%20control PDF link annotation
    • https://degevibuv.weebly.com/uploads/1/3/5/3/135316410/4ed5a458c9ceeb3.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/gia9gjq/60950217233.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/eYbjabQ/17566807802.pdfIn PDF document text
    • https://viwitilabepimep.weebly.com/uploads/1/3/2/6/132695477/3358137.pdfIn PDF document text
    • https://cdn.sqhk.co/velabolo/g7hbheO/wotaworuxemugawut.pdfIn PDF document text
    • http://realnoe-obshenie.online/1742082677xsypo.pdfIn PDF document text
    • https://cdn.sqhk.co/zivunegas/6ifahgN/wheels_on_meals_netflix.pdfIn PDF document text
    • https://rixijufufapug.weebly.com/uploads/1/3/4/4/134497528/jizuzexuruxu.pdfIn PDF document text
    • https://besikutusesa.weebly.com/uploads/1/3/2/6/132681218/bigemuxoked-pavukebobix-gupezib-mevuvemevaw.pdfIn PDF document text
    • http://ratonawe.iblogger.org/horsley_weather_report_today.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/fezenur/area_51_naruto_runner_meme_template.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/autoradio_bluetooth_android_audi_a4_b8.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/82227515388.pdfIn PDF document text
    • http://gakupoxefale.epizy.com/danenatutubade.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/dha_bahawalpur_application_form_last_date.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_off0000d725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD725 5312 bytes
SHA-256: f09ba4882e89a55be0a2bc5c5d7c8dbc58dff5f3e1fa835cc7ca749e8a67649f
font_01_sfnt_off0000e913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE913 11208 bytes
SHA-256: d331ec174e8ee5a4176ec4f40760d0a8ac3305f1ceb898721b8ff8953c93be7c