Malicious PDF — malware analysis report

Static analysis result for SHA-256 72e9e611e20b7299…

MALICIOUS

PDF

74.4 KB Created: 2021-02-09 13:28:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 98228202e615bf1b21bb599dc0aa60d1 SHA-1: 32d4460643ec131cf210c9992bce10d7ddc6fce1 SHA-256: 72e9e611e20b72997031a0576417afb3c758e60eac40c3bf7add16ea1bcb5529
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://leonvi.ru/123?utm_term=samsung+16kg+front+loader+washing+machine+manual PDF link annotation
    • http://tolunisusij.22web.org/kifibar.pdfIn PDF document text
    • https://cdn.sqhk.co/pavoraxebute/gcgiPhc/9279904411.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393016/normal_5fd1dd944c7b8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383475/normal_5ffdb1b60a4ef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494431/normal_5ff026a702cc6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391623/normal_5fef9736df2cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491173/normal_6003e662cc857.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://juvikavirilija.rf.gd/office_timeline_template_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/year_4_multiplication_and_division_worksheets.pdfIn PDF document text
    • http://bameromaxaw.epizy.com/642970975.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/assured_shorthold_tenancy_agreement_forms.pdfIn PDF document text
    • http://fububosuvakosal.epizy.com/acknowledgement_of_service_form_part_7_claim.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/intex_pool_chlorinator_manual.pdfIn PDF document text
    • http://nefigubisi.epizy.com/18595681222.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/renidifux.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_off0000e5c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C0 5900 bytes
SHA-256: f555d17e88299d60caa34a1739dbd616c7517ed6feca9fc09657f43f7ad2a8d9
font_01_sfnt_off0000f9ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CE 10120 bytes
SHA-256: 4d3ed9a9390a54eb1eb14be8bef18fc05fa1a8fa114f48801fbf86e6feb74b2e