Malicious PDF — malware analysis report

Static analysis result for SHA-256 f24e4b5b8aebdfd2…

MALICIOUS

PDF

65.6 KB Created: 2021-02-28 15:22:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d8dc9651e71980d6d98b20e3b04e6291 SHA-1: 1ba3b573b063b63bfa8b41ee9a57363a7c853ba6 SHA-256: f24e4b5b8aebdfd2f27f0bcf9ae9632800a46ffe3bfd003562bf838fa66c7cab
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://lozipotod.ru/award?keyword=bj+betts+lettering+guide PDF link annotation
    • https://cdn.sqhk.co/zujumatatub/dmQPfBM/cofresh_crushed_frozen_garlic.pdfIn PDF document text
    • https://cdn.sqhk.co/mogizilo/ijghbji/33774926962.pdfIn PDF document text
    • http://pl50off.info/microsoft_office_templates_things_to_do_listl4kbi.pdfIn PDF document text
    • https://nolokevajazovap.weebly.com/uploads/1/3/4/8/134888215/sasebifito-lujipewuwelaw.pdfIn PDF document text
    • http://galubiwigo.iblogger.org/bozekebub.pdfIn PDF document text
    • http://help-copyrightviolationhelpcenter.com/94979869939t77xh.pdfIn PDF document text
    • https://wevokowuluza.weebly.com/uploads/1/3/4/7/134739861/kevorutodojage.pdfIn PDF document text
    • http://firstsecu-paypal.com/photoshop_tutorials_free_for_beginnersg7da4.pdfIn PDF document text
    • https://cdn.sqhk.co/nupozifulija/BibA9F3/download_game_total_conquest_hack_offline.pdfIn PDF document text
    • http://help-copyrightservice.xyz/bodovujegefazumonepark6e2.pdfIn PDF document text
    • http://odebayitrafikhizmeti.com/26138043119e44fs.pdfIn PDF document text
    • http://7lessons.space/logotype_book8594f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nomabatapumijez.epizy.com/what_to_do_if_you_receive_a_fake_check.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/lubupukikakak.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/bcc_fee_assessment_form.pdfIn PDF document text
    • http://nifopufu.epizy.com/69513283218.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_off0000c62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC62C 5048 bytes
SHA-256: d4880cd7317522956874247b459347e90d3d15122e6daff46466c83ed79394ec
font_01_sfnt_off0000d764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD764 9956 bytes
SHA-256: 2b29eadcbcadcb4453871cd9dbeb944c5bf30d34b69cf6a89e033cd2b2d15590