Malicious PDF — malware analysis report

Static analysis result for SHA-256 5207da5a7d467049…

MALICIOUS

PDF

67.6 KB Created: 2021-02-26 20:50:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6fa71e6bccf1085f3a597b5fa8352360 SHA-1: 34e2ab4977d12094a5af394986f8cbf447ca95a2 SHA-256: 5207da5a7d467049bcfb7f6f5ed9b39a93059ad16ee957a86c95bab4da4a38c7
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://golowaki.ru/wix?keyword=bfme+2+options.ini+windows+10 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4479240/normal_6038802114825.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446270/normal_5ffd636a7a505.pdfIn PDF document text
    • https://mudagetani.weebly.com/uploads/1/3/4/3/134381332/1993040.pdfIn PDF document text
    • https://xejukosaxup.weebly.com/uploads/1/3/1/4/131437924/tikopebotalig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402721/normal_600a55c8a6791.pdfIn PDF document text
    • https://nakoginav.weebly.com/uploads/1/3/0/7/130776809/nomakax.pdfIn PDF document text
    • https://cdn.sqhk.co/zekafomaze/iCgZJiq/98263674385.pdfIn PDF document text
    • https://cdn.sqhk.co/vixukose/Mjcghij/drill_press_attachment_for_hand_drill_harbor_freight.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380237/normal_5fec9f222d64d.pdfIn PDF document text
    • https://fipuwetula.weebly.com/uploads/1/3/3/9/133997959/sipuwuxada-nodijipomiwo-nawotasepa-xokuxibobokut.pdfIn PDF document text
    • https://tubozabuzimez.weebly.com/uploads/1/3/4/8/134878922/305084.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zutugidod.onlinewebshop.net/project_x_lz_95_reviews.pdfIn PDF document text
    • http://zijiwaras.onlinewebshop.net/big_data_analytics_tools_examples.pdfIn PDF document text
    • http://bogalibamadom.myartsonline.com/44383465922.pdfIn PDF document text
    • http://vilatelisoto.onlinewebshop.net/19403119031.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_off0000cc5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC5D 5348 bytes
SHA-256: c95aa3e640589bc1f1bc090fb1fef221d9f9b719725a5ff1b99601ca764db150
font_01_sfnt_off0000deaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAF 10172 bytes
SHA-256: fe65c04888a8311b04f5c74380efe9c9225f788bf9f1460a87baf62ac60ee0e2