Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa3e70b4f699936b…

MALICIOUS

PDF

69.5 KB Created: 2021-02-14 01:44:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: debcccb2dc74cbc2f20f81638734efc0 SHA-1: cd93c233e90f477787fa707845cadeb4f9a5a59d SHA-256: fa3e70b4f699936b9a85a00a3bfbeec8f7b3b9ebf32fa1d7674535b80560f82d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/wix?keyword=blossom+music+center+2020+schedule PDF link annotation
    • https://cdn.sqhk.co/jovakuki/JM2cShh/futip.pdfIn PDF document text
    • https://cdn.sqhk.co/botuvawezej/4eijFgf/51984618261.pdfIn PDF document text
    • https://fakavenudir.weebly.com/uploads/1/3/4/0/134042443/mozabelikexidoturamu.pdfIn PDF document text
    • https://cdn.sqhk.co/simubekoz/Tjbjegf/bejidumipoxokotizivej.pdfIn PDF document text
    • http://qupieasy.online/827266793355lrle.pdfIn PDF document text
    • https://niraniki.weebly.com/uploads/1/3/4/6/134662237/4435cdcbba.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxomawelej/gcXgjez/daytona_beach_driving_experience.pdfIn PDF document text
    • https://zuvexege.weebly.com/uploads/1/3/0/8/130814851/wiselifogobig.pdfIn PDF document text
    • https://wudizabilizone.weebly.com/uploads/1/3/4/7/134745746/kasojisux.pdfIn PDF document text
    • https://cdn.sqhk.co/menasimax/Y3CifLW/download_photo_blender_for_pc.pdfIn PDF document text
    • https://nerutemiwuxofa.weebly.com/uploads/1/3/1/3/131398157/gixowadotukujonor.pdfIn PDF document text
    • https://cdn.sqhk.co/sarafogu/ibghFaQ/country_music_charts_2020.pdfIn PDF document text
    • https://xesanojazal.weebly.com/uploads/1/3/0/9/130968931/taridomosot-kawuxelepej-jawapoje.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/dowesitobuga/grandstream_ucm_6204_datasheet.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_off0000d26f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD26F 5292 bytes
SHA-256: e27926ddd0bf1db10c34151d5002243fd82902e453e1d9e27b705da1591db57a
font_01_sfnt_off0000e446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE446 11224 bytes
SHA-256: 1f9289826fa29fe33661a5c302f87d4694554ffb675f9180346de7621a579a2b