Malicious PDF — malware analysis report

Static analysis result for SHA-256 71d29395dde5dfd3…

MALICIOUS

PDF

67.6 KB Created: 2021-03-03 12:24:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 37885bc66e061e773b02f53a4c3ee681 SHA-1: 2a34167e77786a9e989d42218e78f9c26db6e756 SHA-256: 71d29395dde5dfd3c5b8024357deae3bd3abd90af0bf0b486009279f9d29765b
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://bologen.ru/wix?keyword=delonghi+model+pacn115ec.wh+3a+manual PDF link annotation
    • https://mitenipup.weebly.com/uploads/1/3/4/3/134363071/pigofafuvelu-vijudezizib.pdfIn PDF document text
    • http://lajodibibodi.getenjoyment.net/bizanutafud.pdfIn PDF document text
    • http://lemakomude.sportsontheweb.net/how_to_clean_pilot_light_on_gas_wall_heater.pdfIn PDF document text
    • http://gekifek.scienceontheweb.net/63395755787.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425759/normal_6016813d69458.pdfIn PDF document text
    • https://cdn.sqhk.co/difigobon/Mhdggns/zopelexajaxifejop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379384/normal_603bf3521ca0f.pdfIn PDF document text
    • https://kapelasijad.weebly.com/uploads/1/3/4/3/134312752/d15e8043189048.pdfIn PDF document text
    • https://fuguxowaponiv.weebly.com/uploads/1/3/4/6/134648792/2e19d.pdfIn PDF document text
    • https://cdn.sqhk.co/jilowepe/nNbdjfo/danuxumewabemoga.pdfIn PDF document text
    • https://cdn.sqhk.co/jedugifaxido/gedvB4A/tegarofe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446027/normal_5fca293451093.pdfIn PDF document text
    • https://jipoditilab.weebly.com/uploads/1/3/1/4/131407274/2307324.pdfIn PDF document text
    • https://cdn.sqhk.co/sotisajen/jfUghQU/wonatufifid.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/wiwamoxamo/35453061681.pdfIn PDF document text
    • https://s3.amazonaws.com/wizakokowe/mirukojekagavenelap.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/kutipusanemo.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_off0000cb3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB3D 5676 bytes
SHA-256: e4aa25cd81c2b1560577492ba887c14859f0f8247da58dd0fb6e5ce0286b2eae
font_01_sfnt_off0000de94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE94 10136 bytes
SHA-256: a2cc667866c8aca2d703a344e176252ed2be90cbbf9b185424766e97e77b6832