Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b6ed9bbb3316b22…

MALICIOUS

PDF

67.1 KB Created: 2021-02-23 03:21:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 24738dde8ffde29cde500af7375f88b1 SHA-1: 4858fbfab9a9361b553e323acb89d508d4fcc3b0 SHA-256: 4b6ed9bbb3316b22b2828f868fdb52c6418d030c70607904ea0ab21c11a00cd2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=plumber+eastern+suburbs+adelaide PDF link annotation
    • https://suxaniwaxunese.weebly.com/uploads/1/3/4/3/134385499/6640745.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416131/normal_602ac25db77f8.pdfIn PDF document text
    • http://carbackseat.site/que_hace_un_jefe_de_produccion_en_construccionslfz9.pdfIn PDF document text
    • https://fitokuzigijot.weebly.com/uploads/1/3/4/6/134681543/7762358.pdfIn PDF document text
    • http://arendagg.xyz/platos_dialogues_listfxuzf.pdfIn PDF document text
    • https://bopidojosonek.weebly.com/uploads/1/3/1/3/131384153/1445659.pdfIn PDF document text
    • http://8gusevshop.space/popular_car_driving5c9lm.pdfIn PDF document text
    • http://disukikobofug.22web.org/afraid_of_letting_go_song.pdfIn PDF document text
    • http://medupaj.iblogger.org/33790539673.pdfIn PDF document text
    • https://dowogejur.weebly.com/uploads/1/3/5/9/135992185/fewidefekirimibamexi.pdfIn PDF document text
    • http://youralteragoods.com/x_tarzan_filmini_izlet5e56.pdfIn PDF document text
    • http://artrosil.xyz/jusazurovolagugegape17g0v.pdfIn PDF document text
    • http://wdd13.ru/evangile_de_philippekzhcw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421365/normal_5fcc3b27b058b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405638/normal_5fd98ca01cb74.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jirizaxewusi.epizy.com/how_to_program_liftmaster_garage_door_opener_keypad_without_enter_button.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_off0000ccf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF6 5112 bytes
SHA-256: 300bce61edd24dfa7f5d27c25bebf864504658dd860f60395c760440dac933e3
font_01_sfnt_off0000de31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE31 9752 bytes
SHA-256: 5877db1117344ebcb15868b1577941ad4bafb6446a08b5273326a41147dba8fa