Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c0717ab9f420344…

MALICIOUS

PDF

69.2 KB Created: 2021-03-04 08:01:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9f8466a9d832f6d587be56e0a0a99218 SHA-1: ef6911f034c51c13500c73616d2fbb961e6b3022 SHA-256: 3c0717ab9f4203442074f94c4f06995afb296f5204b5c31cb11e9ed622905779
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/wix?keyword=tacoma+service+manual+download PDF link annotation
    • https://kujoposa.weebly.com/uploads/1/3/1/4/131453526/edadc8c.pdfIn PDF document text
    • http://prodit.space/53971341426uuxc3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480590/normal_5ffeccd43fe98.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387815/normal_5fd6a7116bd94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421939/normal_6017b0d52af51.pdfIn PDF document text
    • http://power-guard.shop/fallout_shelter_weapons_listdgsnr.pdfIn PDF document text
    • https://favonewe.weebly.com/uploads/1/3/2/6/132695639/sogukalejisoja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387590/normal_5fdac9e08ff0c.pdfIn PDF document text
    • https://rizomoxus.weebly.com/uploads/1/3/4/5/134589692/6120818.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463010/normal_5fcdccf39a06a.pdfIn PDF document text
    • https://jodisugej.weebly.com/uploads/1/3/4/7/134732418/40b98186.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479679/normal_603bb14e12d58.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/wozoxub/53151682984.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/nogibewowu.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/email_outlook_signature_template.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/ssh_secure_shell_ftp_client.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_off0000d2fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2FB 5184 bytes
SHA-256: 59aa52362b6e31645d93589ea48cd5576a108689d4aefa3b9c6ee743566aca91
font_01_sfnt_off0000e498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE498 10364 bytes
SHA-256: f90310132223c282f7134875d048aeedc5b4e9d9220ef2cb90e0e6ebe0ac257c