Malicious PDF — malware analysis report

Static analysis result for SHA-256 910622558d1aa837…

MALICIOUS

PDF

74.1 KB Created: 2021-03-03 23:46:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e9381cd70693ac232e23f6db71dad7a9 SHA-1: 2284f9267fc9be7ca8ff83f7b6d7c52ecf42ce88 SHA-256: 910622558d1aa8378910f125cb7e159251e6cf743b2258c31439053abb2b9786
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://ponafet.ru/strik?utm_term=what+is+project+management+skills PDF link annotation
    • https://kedumapeba.weebly.com/uploads/1/3/4/5/134593926/4901284.pdfIn PDF document text
    • https://rikinosi.weebly.com/uploads/1/3/4/3/134352476/vapudapa.pdfIn PDF document text
    • http://rixorevu.getenjoyment.net/64296744468.pdfIn PDF document text
    • http://roxelejabojafe.scienceontheweb.net/kimafozesukusofefo.pdfIn PDF document text
    • https://cdn.sqhk.co/govizanorev/jinjhfe/dynasty_warriors_4_wu_characters.pdfIn PDF document text
    • http://tipofeliluget.medianewsonline.com/31268077280.pdfIn PDF document text
    • https://tixusevonatafix.weebly.com/uploads/1/3/4/6/134611731/mipaxokabogi-zikukidamoleg-tovuka-mokebigafeb.pdfIn PDF document text
    • https://sorafenime.weebly.com/uploads/1/3/4/3/134320910/lasemejitebefuvig.pdfIn PDF document text
    • http://zesaguzijor.mypressonline.com/34049100074.pdfIn PDF document text
    • http://kujunat.medianewsonline.com/long_john_silvers_hush_puppies_gluten_free.pdfIn PDF document text
    • http://paruxezogu.mygamesonline.org/ximibegosofomopogaxen.pdfIn PDF document text
    • http://mebovedu.getenjoyment.net/koxolewozelutoxedaben.pdfIn PDF document text
    • http://tofotibuwul.sportsontheweb.net/36089796812.pdfIn PDF document text
    • https://zizeximafebofiz.weebly.com/uploads/1/3/4/3/134369397/pikizov.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/woneketelak/24773505331.pdfIn PDF document text
    • http://pizuzol.onlinewebshop.net/temarokefovugexu.pdfIn PDF document text
    • http://zasuwunal.myartsonline.com/average_salary_of_a_machine_learning_engineer_in_india.pdfIn PDF document text
    • http://dapufojutujat.atwebpages.com/vigoxomadiwuxofadapidedod.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_off0000e61a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE61A 5500 bytes
SHA-256: 286d9794935706a93470bc4d4ef377c23be79cb4209a94719097a903e91983f2
font_01_sfnt_off0000f8bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BB 10164 bytes
SHA-256: 24c5e467622b295ada174e6e3e53ef526753bbe32f8666692f42e5c7d4c8c9c8