Malicious PDF — malware analysis report

Static analysis result for SHA-256 93be8a2804721fc6…

MALICIOUS

PDF

79.1 KB Created: 2021-03-01 00:53:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: dfde9b46ef907512a4c8b22167e17b4b SHA-1: 12fbf614bda160696464d50afbd0a8e235c00a5e SHA-256: 93be8a2804721fc6b56ca2885cf8c35087dab53925cb565809153e028e7ba090
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://midufefew.ru/aws?utm_term=navy+eval+writer+team+player+bullets PDF link annotation
    • http://kawlites.online/imo_beta_free_video_call_appd3lw9.pdfIn PDF document text
    • https://xoburorabusu.weebly.com/uploads/1/3/0/7/130738623/vevuzumigeg.pdfIn PDF document text
    • https://denogowozule.weebly.com/uploads/1/3/5/3/135326247/degot-zegudutujajig-lafuzugixekig.pdfIn PDF document text
    • http://stc-l.ru/enfield_ct_police_reports77ef0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409606/normal_6026679d867f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404987/normal_60028c834c587.pdfIn PDF document text
    • http://vkysnaya-eda.site/jonujudisamifezo8pg2b.pdfIn PDF document text
    • http://reflectionss.space/rexanikizewonij95h3.pdfIn PDF document text
    • https://pesadosopovito.weebly.com/uploads/1/3/4/2/134235692/lugabigisavew.pdfIn PDF document text
    • http://natgood.space/bidinorilunorexefoz4319h.pdfIn PDF document text
    • http://antonio-ita.space/loketazetosivem5xm7.pdfIn PDF document text
    • http://smartycredit.info/200415853687rghf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490132/normal_602da3bbb001b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422620/normal_5feb18ce14e22.pdfIn PDF document text
    • http://smilex.club/magic_fluids_onlinet56qr.pdfIn PDF document text
    • http://prostotit.site/python_dictionary_get_values_by_key5sc93.pdfIn PDF document text
    • http://wiinorama.space/dadosijisuse0lsut.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/megodipewukitoj/33635003080.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_off0000f7b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7B0 5328 bytes
SHA-256: add281b5f9d73600c0da6dedda55a3db6e0b33e806f673f1be761fc7a999fd1a
font_01_sfnt_off000109d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109D0 11052 bytes
SHA-256: bd8974c9705e37e310b9713cf8b6c47327041ddc8cb1649693e4860690177e67