Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a0d5ceb5e91437…

MALICIOUS

PDF

74.5 KB Created: 2021-01-24 04:39:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 61036cb471df718fbcd88d5c358d7992 SHA-1: 1f13cb5cb1f2dc8c7cda5770f1d3f17a8c537195 SHA-256: d1a0d5ceb5e91437a23ee18912c487ddb9fcb14d32216b86c0a4a0523c3bb60e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/aws?utm_term=guided+meditation+appreciation PDF link annotation
    • https://xekawipafamut.weebly.com/uploads/1/3/4/3/134328312/07b9ee9d81a0a.pdfIn PDF document text
    • http://wodunobogigav.22web.org/wipuxenarikim.pdfIn PDF document text
    • https://rifijilaguselud.weebly.com/uploads/1/3/4/8/134846829/3281154.pdfIn PDF document text
    • https://xapitutas.weebly.com/uploads/1/3/0/8/130813648/8304054.pdfIn PDF document text
    • http://betixisu.22web.org/78561644573.pdfIn PDF document text
    • https://radefikifuru.weebly.com/uploads/1/3/4/7/134723330/lexowewevazeje.pdfIn PDF document text
    • https://mozeduxazos.weebly.com/uploads/1/3/4/0/134018133/367a15944db430b.pdfIn PDF document text
    • https://vikenefimedok.weebly.com/uploads/1/3/4/3/134390201/xoliwobelarejak.pdfIn PDF document text
    • https://pobunusegem.weebly.com/uploads/1/3/4/4/134460984/62c49d72.pdfIn PDF document text
    • http://xomuxeje.22web.org/tamaxosaw.pdfIn PDF document text
    • https://neredijavapud.weebly.com/uploads/1/3/1/4/131409024/1819027.pdfIn PDF document text
    • http://laxetatisitu.iblogger.org/foolproof_me_answers_module_2.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/pozokimepe/assurance_habitation_macif_formule_confort.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/50680213070.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/8910977218.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_off0000eac6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC6 5040 bytes
SHA-256: e4898d694a139a0b2c6af6c3ced25cb02b1a8429b5db27ab3c4dba2951971871
font_01_sfnt_off0000fbd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD3 9884 bytes
SHA-256: 2aa921d1fa70e174161b4664640ed7bcebe70d548d5ba940d769e57ed51e5d5a