Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a5389c8ff45cc8c…

MALICIOUS

PDF

69.8 KB Created: 2021-02-28 03:02:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4bee79664c05127656f9419d64297e26 SHA-1: 74d38ef5f74c7a85b7feaf435d42676d0cdf9ec1 SHA-256: 5a5389c8ff45cc8c1f3faa65304c8cf21fddc3fe21b9db27e0d35c6b70b0eb96
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://soxebez.ru/wix?keyword=courage+the+joy+of+living+dangerously+audiobook PDF link annotation
    • http://ita-bio.fun/lakatijariwunive94h5n.pdfIn PDF document text
    • http://milanomoda-italy.website/318596076903egs5.pdfIn PDF document text
    • https://talogaxuzule.weebly.com/uploads/1/3/4/5/134596774/a42bf8ffc1fa6.pdfIn PDF document text
    • https://faxomozux.weebly.com/uploads/1/3/0/7/130775398/xotipefazaruri.pdfIn PDF document text
    • http://beremoter.online/xmeye_setup_android0ylh0.pdfIn PDF document text
    • http://vuvepexuja.22web.org/pediatric_cardiology_board_review_free.pdfIn PDF document text
    • http://pedron.fun/ballyclare_secondary_school_uniform5qe88.pdfIn PDF document text
    • https://wupanotowi.weebly.com/uploads/1/3/1/4/131406855/nafozexato_gabuxumo.pdfIn PDF document text
    • http://hurleyshamburgers.com/solar_panel_installation_guide_in_urduec1p9.pdfIn PDF document text
    • http://meetsucre.pro/website_link_checkeramdyb.pdfIn PDF document text
    • http://particuliers-societegenerale.xyz/lefivizeu4wii.pdfIn PDF document text
    • https://gadebalemalun.weebly.com/uploads/1/3/4/4/134443756/wagisaxiwedow-xonivuxavatag-jepaled.pdfIn PDF document text
    • http://com-signto2.xyz/41616800197gf0ld.pdfIn PDF document text
    • http://gedagefi.22web.org/section_138_of_negotiable_instruments_act_latest_amendment.pdfIn PDF document text
    • http://ovca.space/how_to_fix_samsung_touch_screen_not_workingw0ozb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://webetiruziri.rf.gd/father_and_son_matching_smart_shirts_uk.pdfIn PDF document text
    • http://litopuputorer.rf.gd/35371433551.pdfIn PDF document text
    • http://disofebuwugojuj.epizy.com/zasiris.pdfIn PDF document text
    • http://kariwukopufemu.rf.gd/total_coliform_bacteria_in_drinking_water.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_off0000d40d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD40D 5516 bytes
SHA-256: 4774bc37bfb6d70577d79cdae28ba1e0ee53ff98d505b4f20cf8360bad0b225a
font_01_sfnt_off0000e6e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E0 10184 bytes
SHA-256: 190b31444bc5e112f1c13136652ee9d1a6cefbd9319e56c304e4ae3ecfb1459a