Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca8de7565ad69ccd…

MALICIOUS

PDF

68.6 KB Created: 2021-02-02 06:36:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2ef22a070de3251556a69baa598ac512 SHA-1: e4b876ac9796f032e11c94ea4f870098d3768838 SHA-256: ca8de7565ad69ccd54551de5b6c2b5f4b779787511f12329f841b177636eb7a1
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://maypoin.ru/aws?utm_term=best+storyline+360+templates PDF link annotation
    • http://7lessons.space/12_step_worksheets122tq.pdfIn PDF document text
    • http://vorgazme.com/fuvimomapokqtyrh.pdfIn PDF document text
    • https://felavutiz.weebly.com/uploads/1/3/1/1/131164211/da4b04.pdfIn PDF document text
    • https://gidiwukos.weebly.com/uploads/1/3/1/3/131381706/gejenixezezaf-vesavuvi-vivupiva-gaxojulebavesaj.pdfIn PDF document text
    • https://watuluvijigu.weebly.com/uploads/1/3/3/9/133997483/9917591.pdfIn PDF document text
    • http://lnstagramverifiedbadgeshelpcenters.net/the_gas_laws_boyles_law_worksheet_answersamewr.pdfIn PDF document text
    • http://erogan-oficial.site/mavexejatopevkz6zv.pdfIn PDF document text
    • https://cdn.sqhk.co/gubisagebuto/hhkhFic/95226485688.pdfIn PDF document text
    • http://good-production16.site/coronavirus_briefing_sunday_10th_may2r0nj.pdfIn PDF document text
    • http://minuette.me/78279560257nsdh9.pdfIn PDF document text
    • https://fuwefepitebu.weebly.com/uploads/1/3/4/7/134709748/e7198c9263fa33.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/vunizi/nuvizux.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/attachment_of_earnings_form.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/leboxilatatagix.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/xigexirizubuxida.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_off0000cfad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFAD 5576 bytes
SHA-256: 37b515ec9dd10f892c2e19f2c93be98b9fabe95f45c10d423eba2bed5eed7495
font_01_sfnt_off0000e28b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28B 10368 bytes
SHA-256: 74df6c1ed61e4349223b0a32db0aaa04c4eb14cc260bcc76b3e56d3b0976da6b