Malicious PDF — malware analysis report

Static analysis result for SHA-256 10552afa7abc256f…

MALICIOUS

PDF

70.6 KB Created: 2021-02-13 01:22:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 349aa2e0a3c55e30490d22f88a88fabd SHA-1: e68f881673314c5fd060c9e7e3fee1cb894d6d40 SHA-256: 10552afa7abc256f3083ed48f73ad282789097b56072397be607447e5a98eb47
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/wb?keyword=agitated%20behavior%20in%20dementia%20scale%20pdf PDF link annotation
    • http://feedbacrnz.space/zajexovogozedakeuxdqo.pdfIn PDF document text
    • http://mebelintera.ru/lomanco_750_spec_sheetfo688.pdfIn PDF document text
    • https://fiwebafifike.weebly.com/uploads/1/3/4/8/134885554/7157449.pdfIn PDF document text
    • http://bizegusesugusus.iblogger.org/40519088762.pdfIn PDF document text
    • http://difavusimope.iblogger.org/96546120610.pdfIn PDF document text
    • http://piredvizhnik.com/aadhaar_card_printing_software_free3its2.pdfIn PDF document text
    • http://itslm.fun/pufitoj1cp7.pdfIn PDF document text
    • https://gamekesilib.weebly.com/uploads/1/3/4/8/134892139/5080634e2.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/vebogotexaf/27443364077.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/92096755868.pdfIn PDF document text
    • http://sozanizitug.epizy.com/standard_chartered_biometric_app.pdfIn PDF document text
    • http://naximeb.rf.gd/reflexive_pronouns_worksheets_for_grade_4.pdfIn PDF document text
    • http://bodudubabafixe.rf.gd/sarovadejokubozimutawewix.pdfIn PDF document text
    • http://vuruwabudakase.epizy.com/latest_aerobics_music_free.pdfIn PDF document text
    • http://livukuxuperum.epizy.com/rikosexefobatilavexebum.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_off0000d50a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD50A 5756 bytes
SHA-256: d9980b511fd6ca0560b358edb015c6f318fdaff6e8b56f337e818f0d75cdf3eb
font_01_sfnt_off0000e87b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE87B 10908 bytes
SHA-256: fe7df76f127da5beecc6664ed3e123f602a2873616badd374c1af0f1acb6a213