Malicious PDF — malware analysis report

Static analysis result for SHA-256 81062df4b335dcee…

MALICIOUS

PDF

67.9 KB Created: 2021-02-28 17:45:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5e062a6434b4fcbe4c659b89027eeb00 SHA-1: bd8270cee02687a59b2db174b621e948dfe254a4 SHA-256: 81062df4b335dcee029b4c9e20a62861a24ccd9d26ac6fed8ff5b179c7dd9af2
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://gimoguvi.ru/award?keyword=powertraveller+mini+g+manual PDF link annotation
    • https://figowemepiwe.weebly.com/uploads/1/3/1/3/131398533/a2a1c5c75.pdfIn PDF document text
    • https://jamibada.weebly.com/uploads/1/3/1/1/131164428/6271469e07d8c09.pdfIn PDF document text
    • https://fogunovavak.weebly.com/uploads/1/3/2/6/132681822/985b8f1607e70.pdfIn PDF document text
    • https://pazudafodimaje.weebly.com/uploads/1/3/0/7/130776249/lebijo.pdfIn PDF document text
    • http://filajupixi.iblogger.org/39874447788.pdfIn PDF document text
    • http://riforemepenog.iblogger.org/budget_spreadsheet_example.pdfIn PDF document text
    • http://zelupelar.iblogger.org/16729216921.pdfIn PDF document text
    • https://tafopolen.weebly.com/uploads/1/3/4/3/134396822/wimotiganadivire.pdfIn PDF document text
    • https://tasukivokojut.weebly.com/uploads/1/3/4/5/134592673/f7982aa.pdfIn PDF document text
    • https://kawuzuke.weebly.com/uploads/1/3/1/6/131606938/4704965.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gewagopixinilu.rf.gd/44252889830.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/barycentre_de_deux_points_pondrs.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/languidez_estomacal_remedios_caseros.pdfIn PDF document text
    • http://dafevuzadolax.epizy.com/vobobaxulavika.pdfIn PDF document text
    • http://gedatedemokuju.epizy.com/converting_different_units_of_measurement_worksheets.pdfIn PDF document text
    • http://bikikifuxax.epizy.com/51485296232.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_off0000cfa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA9 4980 bytes
SHA-256: 41a29fe8c47a66ed025366b202157552d1384e1887263742df8fc6ba47827005
font_01_sfnt_off0000e098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE098 10052 bytes
SHA-256: dabd9ed7dd95db674b074ec30232ae13e8818481719edf21c13fc3a833b24fa2