Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bd7944d9d239368…

MALICIOUS

PDF

74.7 KB Created: 2021-03-02 06:54:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6e4249079ea291e6051eaf0422e7501d SHA-1: f037cb178f1e91e99f5549eed3db0f068b482ee5 SHA-256: 1bd7944d9d23936878bbbb9356fffe1705113773b7f9adfcc330cdd12348792e
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://kuzutuzo.ru/aws?utm_term=the+expanse+season+5+episode+8+synopsis PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4423452/normal_5fc6541f29502.pdfIn PDF document text
    • https://loponulofaxoli.weebly.com/uploads/1/3/4/3/134324484/rejetedapego.pdfIn PDF document text
    • https://cdn.sqhk.co/mukutosi/zifhb8W/91349028223.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391326/normal_5fe8e5872d4f1.pdfIn PDF document text
    • https://sigogaxeba.weebly.com/uploads/1/3/4/6/134620414/nivubolozekagig_tanewele.pdfIn PDF document text
    • http://mnatural.space/does_health_insurance_cover_maternityftz2c.pdfIn PDF document text
    • https://lepepapiminokuj.weebly.com/uploads/1/3/4/4/134493398/guroserarogovur_bujigajakorof_wizigamikaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375514/normal_600bf01359b7f.pdfIn PDF document text
    • https://nererudufujodu.weebly.com/uploads/1/3/4/3/134321338/1665a8cc8d.pdfIn PDF document text
    • http://mandarins.space/where_do_you_start_the_road_to_hanatlonh.pdfIn PDF document text
    • https://cdn.sqhk.co/kufagilan/gjVAjgG/fitbit_charge_4_review_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419849/normal_6009dbb0c9d30.pdfIn PDF document text
    • https://cdn.sqhk.co/waxusuxagaki/ieEihk0/what_you_appreciate_about_someone.pdfIn PDF document text
    • https://nugukijozagesek.weebly.com/uploads/1/3/0/7/130739433/55c3bfd00f9e174.pdfIn PDF document text
    • http://20970907.net/653098329663yjsa.pdfIn PDF document text
    • http://nowtorrentz.com/fixotelemebapogavetrrmf.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/wejuvono/mosalowudinevebadewarabej.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/wefukobelifamozaguv.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_off0000e5f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F4 5356 bytes
SHA-256: 4b04314eb74eb1b88bf1860094c4c43c9b996341887c7502767acb6574ecb00f
font_01_sfnt_off0000f83c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83C 11092 bytes
SHA-256: d6600d8ea9c23e7265344bf8f7598a33b85edef00d2b161847e8c2fcb4b85c90