Malicious PDF — malware analysis report

Static analysis result for SHA-256 23d964215c5dfc12…

MALICIOUS

PDF

69.3 KB Created: 2021-03-02 18:47:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: df9030f0cf46fdaf8875e926d472b3e7 SHA-1: fabf1b75a6703e2899fe8319c6fdca9481fd4581 SHA-256: 23d964215c5dfc12fc6950b3fb4b5ba5218031d5167735776f49b7b04d9ecae9
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://leonvi.ru/award?keyword=parrot+ck3100+manual+utilizare+romana PDF link annotation
    • https://cdn.sqhk.co/karapenakozi/KYlVDjj/ximuzej.pdfIn PDF document text
    • https://liletalezawo.weebly.com/uploads/1/3/4/5/134591830/zaviguten.pdfIn PDF document text
    • http://klosheff.xyz/biology_books_for_neet_freebyqlz.pdfIn PDF document text
    • https://woxogobigevi.weebly.com/uploads/1/3/0/8/130814596/6211530.pdfIn PDF document text
    • http://construt.site/autobots_killed_in_transformers_4hn6da.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/ihhXAmo/interesting_facts_about_yourself_icebreaker.pdfIn PDF document text
    • https://nunamifeko.weebly.com/uploads/1/3/2/7/132740424/magiluzutotumax.pdfIn PDF document text
    • https://cdn.sqhk.co/jumibizede/eichg9j/free_wifi_calling_app_for_iphone.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486765/normal_5fee89f62f254.pdfIn PDF document text
    • http://leaninrzpd.site/tujiwokepegogabizupajap6zjh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455901/normal_5ff772c8b4778.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412902/normal_6022ea9a343ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467601/normal_602e21487fefd.pdfIn PDF document text
    • http://leomannapov.com/business_proposal_template_word_doc_free2qht3.pdfIn PDF document text
    • https://napuguzexavuzes.weebly.com/uploads/1/3/4/8/134875267/4ad2f9b4bd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://faripemoxezoxip.epizy.com/gretsch_drums_serial_number_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nevowimo/impulse_and_momentum_physics.pdfIn PDF document text
    • http://kiwozoma.epizy.com/holy_bible_for_android_phone_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC654 5120 bytes
SHA-256: eb4394706f75529914fc1e5fba2f6254497bf11334f4e95402ac195d3eebc29f
font_01_sfnt_off0000d7ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7AC 10044 bytes
SHA-256: f285b3af065b0e8f6e25b5e6faedaaa78efecab522e2b535b3384aa056b7005a
font_02_sfnt_off0000fa0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA0F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2