Malicious PDF — malware analysis report

Static analysis result for SHA-256 35ef3bd5c8e98892…

MALICIOUS

PDF

69.0 KB Created: 2021-02-25 01:41:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: b0c32463f6b3cbb6e32d098f7b5d422a SHA-1: 924043fd690fc1f4c20afbd65ffe58349623736f SHA-256: 35ef3bd5c8e9889278dad78c22623cba749e394722329c41c8b04b0b6231abe8
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://bologen.ru/award?keyword=ge+washer+timer+assembly PDF link annotation
    • http://serdyukov.pro/battistero_degli_arianibuk3q.pdfIn PDF document text
    • http://flipping-car.online/reading_practice_test_5_answersnnr7n.pdfIn PDF document text
    • http://elerctum.org/70964603849t87aa.pdfIn PDF document text
    • http://epipog.com/sample_employee_performance_self_appraisal_answersym3nc.pdfIn PDF document text
    • http://parkji5x.xyz/apa_citation_guide_6th_editionya80g.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384046/normal_5fd08071e86ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382406/normal_601e1ad120c80.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450507/normal_5febdbe12ceb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369654/normal_6021a452bc1a0.pdfIn PDF document text
    • http://servicesforsupport.com/annona_glabratdqeq.pdfIn PDF document text
    • http://deflecfcvy.best/thanksgiving_worksheets_for_5th_gradelwumn.pdfIn PDF document text
    • http://uuuuull.space/the_thing_called_love_parents_guide7jn6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446770/normal_5fe8c87791788.pdfIn PDF document text
    • http://electrumwallet.buzz/ice_age_adventures_mod_apk_unlimited_everythingo93b7.pdfIn PDF document text
    • http://verenica.net/66825595083s2c3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384030/normal_5fe81aebaec1d.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/dodogumevivaratujumibebor.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501233/normal_5fdf102031808.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://valupakukav.myartsonline.com/buxapirujovozizo.pdfIn PDF document text
    • http://povasapodojika.epizy.com/mopudevo.pdfIn PDF document text
    • http://benifolagalat.epizy.com/rimorapasa.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_off0000d0e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E9 5288 bytes
SHA-256: e7a302449c0fac0e190f5b14a70dc28a59491125851e4fdcce2fed5f72b49002
font_01_sfnt_off0000e2d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D0 10092 bytes
SHA-256: 82c53b27f3a96a821325262cf7423cf6b06d3bd1822cebff611cba0e144123f3