Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ae22c3ba8476cce…

MALICIOUS

PDF

64.7 KB Created: 2021-02-25 20:42:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ae1e46826e50cff800b17be9e83327a2 SHA-1: 72fdee5c15ccc0a095635353065b6049328ad7e2 SHA-256: 3ae22c3ba8476cceea9d364038f3d841d6e3f763dab57cf183f134021b53692e
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=stickman+badminton+2+unblocked+games In PDF document text
    • https://melesanej.weebly.com/uploads/1/3/1/1/131163783/zelukij.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/operations_management_certificate_programs.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/hGculjh/destiny_s_child_wikipedia_espanol.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwexosul/Uihiahd/city_airport_car_parking_belfast.pdfIn PDF document text
    • http://vijexibat.mywebcommunity.org/16374307671.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370542/normal_60131343c3595.pdfIn PDF document text
    • http://wotaxatumumodok.sportsontheweb.net/dungeons_and_dragons_players_handbook_free.pdfIn PDF document text
    • https://vufemare.weebly.com/uploads/1/3/4/8/134855896/586091fd1.pdfIn PDF document text
    • http://montana-media.com/96918762541kj55l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478933/normal_5ff2076826b80.pdfIn PDF document text
    • https://lafefetakizin.weebly.com/uploads/1/3/2/7/132712235/a21fb5aff4f58.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/kijelopazekune/negetebatixubog.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/23299933486.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/renaleno.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_off0000bf49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF49 5604 bytes
SHA-256: e9a732bd084cc0d3900982211645676baeb132644c01a58218a8e95a0d69b21b
font_01_sfnt_off0000d246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD246 10872 bytes
SHA-256: e92e5248f0fdf86972b30d216b7185a28575264947fa5f24685ce3de5ed1cab8