Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a9823077a633a72…

MALICIOUS

PDF

74.9 KB Created: 2021-02-28 21:05:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7ee890cba4468519cb95c64592dff1fc SHA-1: 99b64e4eaf95d1d178c6c9e98c87923e9a2fdea1 SHA-256: 1a9823077a633a722f280234771ceafe4542f0c9e20090ae552266ecf5c74374
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://druttle.ru/award?keyword=is+war+and+peace+on+netflix+australia PDF link annotation
    • http://wivaserana.mywebcommunity.org/how_do_i_reset_my_jbl_flip_5_speaker.pdfIn PDF document text
    • http://tejovotemikodes.getenjoyment.net/bosch_super_silence_plus_42_dba_soap_dispenser_not_working.pdfIn PDF document text
    • http://siwupojotuj.getenjoyment.net/51758753330.pdfIn PDF document text
    • https://cdn.sqhk.co/zosiwutu/UHjb9hc/bomb_hunters_mod_apk_rexdl.pdfIn PDF document text
    • http://zebakabum.iblogger.org/1st_birthday_invitation_card_templates_free.pdfIn PDF document text
    • http://vatidenow.medianewsonline.com/bumiwenixo.pdfIn PDF document text
    • http://pimifawimonidij.mywebcommunity.org/dictionary_definition_construction_worker.pdfIn PDF document text
    • https://cdn.sqhk.co/telivagawu/qrgbijR/formula_1_car_parts_explained.pdfIn PDF document text
    • http://kunujunekedi.mygamesonline.org/97720410121.pdfIn PDF document text
    • http://icily.xyz/7527871673wz68v.pdfIn PDF document text
    • https://cdn.sqhk.co/gufezitaxato/IhgMeYG/zagazi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dinetekip.epizy.com/38081054764.pdfIn PDF document text
    • http://xuxerutiwuv.onlinewebshop.net/jugixewe.pdfIn PDF document text
    • http://xufenazaliwe.epizy.com/cessna_172_maintenance_manual_free.pdfIn PDF document text
    • http://jitoritobo.epizy.com/maths_sums_worksheets.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_off0000e91c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE91C 5248 bytes
SHA-256: 3b3008bf1dfa71758593105c9a38fa44807bf3725635211e82dd7c999d60e91f
font_01_sfnt_off0000fb1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB1B 10468 bytes
SHA-256: 5dc72700289e9d0bd3fa8fa4160095a74c03f1d63aeadf4a490fdef23a6f8263