Malicious PDF — malware analysis report

Static analysis result for SHA-256 1adadae429e7336b…

MALICIOUS

PDF

76.6 KB Created: 2021-02-05 23:47:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 500154a8954f172ed29fa7f9c2c6665f SHA-1: 1fa1d5f1c0e3a0a19aec82972490c190bf6e86f7 SHA-256: 1adadae429e7336bfe7a26cc0e52fb610ec338791179ebd19673c850e28fc92c
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://druttle.ru/wb?keyword=graphic%20equalizer%20android%20free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370547/normal_60159be532a79.pdfIn PDF document text
    • http://dkshlyap.ru/lijozebigelivarunipuxoprmlpg.pdfIn PDF document text
    • http://japancar-sib.ru/9987694874418990.pdfIn PDF document text
    • http://logoped-samara.ru/balatigijoxofupilf51zy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423732/normal_5fec954a29b11.pdfIn PDF document text
    • https://cdn.sqhk.co/judawube/2girAC2/43209554991.pdfIn PDF document text
    • http://nicechange.space/pezopubiresevmvf9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381766/normal_601775c0cb277.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388412/normal_5fe53dd387af4.pdfIn PDF document text
    • http://kind-insta.site/99199249854e0od.pdfIn PDF document text
    • http://cesaregaspari.com/zawimilujosirejivokotelo9tcny.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449395/normal_600da7a87daf4.pdfIn PDF document text
    • https://cdn.sqhk.co/xomifinetepi/giieic3/business_administration_major_in_marketing_salary.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410016/normal_5fe531213f2e6.pdfIn PDF document text
    • https://cdn.sqhk.co/nukunudakiju/akXhcTS/dobugabenukesisutadu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ee5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5C 5272 bytes
SHA-256: 2c4664f292fed0e35d419884070a0ad121961fab8e48702d2d096dd54a7dee0e
font_01_sfnt_off0001004e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004E 11048 bytes
SHA-256: b7375565edfe9e8aa37f3eed5888fcfb314590c3418b2e2888a14632c3b0dc3b