Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6643675a95ad44e…

MALICIOUS

PDF

71.0 KB Created: 2021-01-31 10:12:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 600eb683f271973626f24e62878ca0ac SHA-1: 3336e9bab485b61d17a24e6737731405cb17b274 SHA-256: f6643675a95ad44e3a3c8d0de82519f0d509036bba2ebf448f33cce8d8b8e4c3
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://jacksth.ru/aws?utm_term=botryococcus+braunii+adalah+pdf PDF link annotation
    • https://cdn.sqhk.co/luxixumogez/JY6Kjj8/1931827120.pdfIn PDF document text
    • http://bluetea.space/puvubosetpowrj.pdfIn PDF document text
    • http://ditilage.22web.org/dinekefalovanarunozukaxev.pdfIn PDF document text
    • https://cdn.sqhk.co/busibelifiv/hjdwHeV/kobifijagapakofu.pdfIn PDF document text
    • https://cdn.sqhk.co/fomeluxilim/zhi6zid/word_trip_level_497.pdfIn PDF document text
    • https://cdn.sqhk.co/lusajiki/hga0wTS/so_one_way_traffic_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/muvifisi/cjgghhF/shell_helix_racing_gear_oil_75w-_90.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bodagoge.epizy.com/battle_house_movie_songs_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/suranevovijodinamebumi.pdfIn PDF document text
    • http://gopudagob.epizy.com/small_business_answering_service_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/winston_churchill_school_ofsted_report_2015.pdfIn PDF document text
    • http://notijopozij.epizy.com/amulet_book_8_supernova.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/affirmative_answer_en_espaol.pdfIn PDF document text
    • http://jipinasin.epizy.com/23592130470.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/creature_fx_movie_director_mod_apk.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_off0000d633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD633 5532 bytes
SHA-256: 98eb507479f5f3aae9d96e234a355b5a9e83fdc9f9a8c946a0c0eec0aa730c81
font_01_sfnt_off0000e903.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE903 11320 bytes
SHA-256: a0c1f477d251a92e944f584e31ed316bd1a8846416c542c7549b951794bdd6de