Malicious PDF — malware analysis report

Static analysis result for SHA-256 faebcf6f8833d515…

MALICIOUS

PDF

72.5 KB Created: 2021-02-14 18:36:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 46ffabb274ef75dc1e27d1161473710e SHA-1: 63f6251811ef7b497ed46a4afc394007a16f117a SHA-256: faebcf6f8833d51595c4c82219fe38593f1dfc94f16893b92bd71835becc4f34
244 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=pentatonix+evolution+of+michael+jackson+lyrics In PDF document text
    • https://cdn.sqhk.co/zetanitanedo/f0xFKjb/pujiv.pdfIn PDF document text
    • https://vepazigomopu.weebly.com/uploads/1/3/4/3/134398405/fuwukajegeme.pdfIn PDF document text
    • https://lipijunozawisek.weebly.com/uploads/1/3/4/7/134721324/tuvanofodu.pdfIn PDF document text
    • https://cdn.sqhk.co/fedovipawe/vhagehd/52713947603.pdfIn PDF document text
    • https://cdn.sqhk.co/sifalavuxozo/hahjthg/palifilopemut.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372101/normal_5fc5806a2354f.pdfIn PDF document text
    • https://cdn.sqhk.co/wodigajamu/a4iaHjM/31096317971.pdfIn PDF document text
    • https://zagamujibagixon.weebly.com/uploads/1/3/5/3/135326067/lotoj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451044/normal_5ff3dd431d665.pdfIn PDF document text
    • https://cdn.sqhk.co/tedalome/gjpwgib/affirmatively_furthering_fair_housing_2015.pdfIn PDF document text
    • https://xefegirabiveg.weebly.com/uploads/1/3/0/9/130969499/zakoj-nogagemofo.pdfIn PDF document text
    • https://cdn.sqhk.co/levuzivanu/ifOidjf/binupesinurukot.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/njigOgi/livebafasa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461234/normal_600d432bd71af.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403264/normal_5feb96499f3e1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://devuzobek.rf.gd/43090047938.pdfIn PDF document text
    • http://xenuduximowub.epizy.com/fujolusabagozo.pdfIn PDF document text
    • http://mafofeguf.epizy.com/75671382592.pdfIn PDF document text
    • http://pababevo.epizy.com/parexatoto.pdfIn PDF document text
    • http://wawutanow.epizy.com/315521581.pdfIn PDF document text
    • http://sepobifesedapeg.rf.gd/homeschool_weekly_lesson_plan_template.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_off0000e009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE009 5492 bytes
SHA-256: 8d465ceca0d368bf46ad02d7459c9b1b2247e73aeb4289c75d9997b37702c2a2
font_01_sfnt_off0000f2a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A6 9892 bytes
SHA-256: e2787a6cde0bfd685ed711ee630696112e12f74056f6a2c2a91424517b99cabe