Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b62fad1c3378b4a…

MALICIOUS

PDF

71.3 KB Created: 2021-03-01 08:40:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b2fdbcda9b80709ac1b552a7d8dfc3dd SHA-1: 4203fd24ca477cd0e3fa92246175f8891a95d63e SHA-256: 1b62fad1c3378b4a44472dc65c227679bf1386a68c530df224859f6ca8c3d072
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://resalured.ru/award?keyword=lean+mean+fat+grilling+machine+steak PDF link annotation
    • http://subumobo.22web.org/27992293952.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485809/normal_5fee72b3afbb5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407327/normal_600668f1c238a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380680/normal_6006a1db60ac8.pdfIn PDF document text
    • https://gofolonuk.weebly.com/uploads/1/3/4/3/134313710/5282368.pdfIn PDF document text
    • https://cdn.sqhk.co/tunaluvum/hhzjge2/powder_game_2_download_pc.pdfIn PDF document text
    • https://favasonod.weebly.com/uploads/1/3/2/7/132740296/xebevadejoziwejajin.pdfIn PDF document text
    • https://kijomexed.weebly.com/uploads/1/3/1/0/131069838/runasojovolu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454822/normal_601b0661620aa.pdfIn PDF document text
    • https://rikelakejif.weebly.com/uploads/1/3/4/8/134885243/4244319.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://genenapukiral.epizy.com/bollywood_movie_filmyzilla._vin.pdfIn PDF document text
    • http://wegewid.epizy.com/fogovufilurufebapanedexo.pdfIn PDF document text
    • http://zitadufafasid.onlinewebshop.net/como_cambiar_de_pulgadas_a_milimetros_en_mastercam.pdfIn PDF document text
    • http://vifowas.epizy.com/29963659935.pdfIn PDF document text
    • http://pimeduzuruwoboj.rf.gd/92568835521.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_off0000d9c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C4 5300 bytes
SHA-256: 1645cfda588a2d64e0217e562f93092ee9073e899bcdd9e58ff5f14dfeee1142
font_01_sfnt_off0000eba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA8 10664 bytes
SHA-256: 89c739cb9a93b1c17f2445d25c884636013eb8ec90bf7eabcf70992def6dd728