Malicious PDF — malware analysis report

Static analysis result for SHA-256 49dbe5f23214097a…

MALICIOUS

PDF

70.1 KB Created: 2021-03-05 19:13:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5ac1edb7c2447a3ef3635b59559fcd7b SHA-1: e685ada05784ab2be35ddd75ba7ee70784d8ab6c SHA-256: 49dbe5f23214097a9a6ad0711bdaa5d5d9bcfcf8fcd958d2336142b3ef2930f3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://mezovuduw.ru/wix?keyword=secondary+math+1+module+5+answer+key PDF link annotation
    • https://cdn.sqhk.co/xuvisisitinu/ie7jigH/85253369633.pdfIn PDF document text
    • https://jinepesel.weebly.com/uploads/1/3/5/3/135346763/3915063.pdfIn PDF document text
    • https://difegalit.weebly.com/uploads/1/3/2/6/132681294/dozonazireta-nepisusiredazu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370309/normal_5fd0697939f00.pdfIn PDF document text
    • https://wiwovadale.weebly.com/uploads/1/3/5/3/135322143/musajivarevewe_tenajajojaxape_wifuxuworisur_sarumugire.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366660/normal_5ff10b677ff44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374699/normal_6033cd660b191.pdfIn PDF document text
    • https://cdn.sqhk.co/moxulofilose/hdgcTpn/collins_gem_sas_survival_guide.pdfIn PDF document text
    • http://zesenadozefut.sportsontheweb.net/survival_of_the_fittest_natural_selection_meaning.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402956/normal_602b3a6a91620.pdfIn PDF document text
    • http://zutolewe.mywebcommunity.org/on_the_road_full_movie_online_watch.pdfIn PDF document text
    • http://vuzetasavuxoso.mygamesonline.org/dead_until_dark_characters.pdfIn PDF document text
    • https://mutikotamibe.weebly.com/uploads/1/3/0/8/130874320/8960700.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mogujuku.epizy.com/jugular_venous_pulse_waveform.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/buddha_hi_buddha_hai_song.pdfIn PDF document text
    • http://rozabakesolunu.rf.gd/sentences_worksheets_grade_4.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/14768054875.pdfIn PDF document text
    • http://jexuvorozomegoj.epizy.com/arrl_ham_radio_license_manual_3rd_edition.pdfIn PDF document text
    • http://wodatefajudofow.epizy.com/3346359102.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_off0000d422.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD422 5716 bytes
SHA-256: 93641157e45e50af64a23432ec6f2b7311cab78e5d2d8ec3a209dd79f13dcef3
font_01_sfnt_off0000e78e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE78E 10412 bytes
SHA-256: 88dc7595b685cf61915d0bf7394dc18a69a468c35a70acdc0151345d2019a734

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