Malicious PDF — malware analysis report

Static analysis result for SHA-256 25ded522b6cc5e34…

MALICIOUS

PDF

69.5 KB Created: 2021-02-24 00:41:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d3d455cfab93f1f10335e3cc2635a4f4 SHA-1: 6f2a6ca4dd10ac4df8529a37375a5ffb50c56825 SHA-256: 25ded522b6cc5e34d0dbf9e5d97d17de363559297f436cc3cb4bbe93f8bbde22
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://jacksth.ru/wix?keyword=public+administrator+definition+legal PDF link annotation
    • http://wadigajore.22web.org/40064877628.pdfIn PDF document text
    • https://cdn.sqhk.co/gotakavapu/nNEqYib/noir_chronicles_city_of_crime_switch_review.pdfIn PDF document text
    • https://vixixufabajuwe.weebly.com/uploads/1/3/1/1/131163632/xotirezur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449775/normal_6014834adfc33.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420459/normal_5fecef1853d33.pdfIn PDF document text
    • https://lijotabele.weebly.com/uploads/1/3/4/0/134016876/5613645.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501804/normal_602d8bc39bd13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385228/normal_6035847f27589.pdfIn PDF document text
    • https://cdn.sqhk.co/bufutoje/bjidRjg/you_are_so_hopeless_romantic.pdfIn PDF document text
    • http://fagixadako.iblogger.org/mackie_fr_2500_specs.pdfIn PDF document text
    • http://kusulapezep.iblogger.org/jejufawajosujawiguwo.pdfIn PDF document text
    • https://wutiduxa.weebly.com/uploads/1/3/5/3/135300785/derav_kigevaverum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368763/normal_60216d8631408.pdfIn PDF document text
    • https://pabaxugu.weebly.com/uploads/1/3/2/6/132695470/8d911d7457e7.pdfIn PDF document text
    • https://cdn.sqhk.co/pajijolabalu/bhbsiNA/75011550336.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/suxuzubojut/raxidejixod.pdfIn PDF document text
    • http://dajaxul.epizy.com/jadifuza.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_off0000d1aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1AA 5484 bytes
SHA-256: b99947eff3892eb0a8efa00cbdff110ce8d724a27b32dc8b2e309b2023c00ef0
font_01_sfnt_off0000e432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE432 10692 bytes
SHA-256: e6b02787823e08316ae9886a92c23c4be7c7c9a9124c2f3bf4a56e5d696fc501