Malicious PDF — malware analysis report

Static analysis result for SHA-256 f05c3860922dba05…

MALICIOUS

PDF

75.5 KB Created: 2021-02-27 00:40:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0b9ad2d028ae0234fdf6d858612e8ae4 SHA-1: c6768c64acd3f3008dc07faa41270207f910dbb8 SHA-256: f05c3860922dba05264ee47dd4dfae0b7444ba726e2a50f19b6a837f321db3e4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://golowaki.ru/123?utm_term=how+to+test+hp+power+supply PDF link annotation
    • https://cdn.sqhk.co/dabeluza/XgehhGY/card_fall_mod_apk.pdfIn PDF document text
    • http://buyfastedcircle.xyz/vigazivem49krj.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/jdm8Qij/narajozedaniz.pdfIn PDF document text
    • http://dotavulilego.mypressonline.com/dunasojugulabinizutu.pdfIn PDF document text
    • https://cdn.sqhk.co/keviwebewuta/jahhBEU/cross_stitch_saga.pdfIn PDF document text
    • https://cdn.sqhk.co/tavolimogid/RLjatia/audio_buffer_size_latency.pdfIn PDF document text
    • https://cdn.sqhk.co/runudori/gedpngc/merge_dragons_secret_levels_grimshire.pdfIn PDF document text
    • https://cdn.sqhk.co/gadukupuwe/thgicJG/jojomilirijobina.pdfIn PDF document text
    • https://cdn.sqhk.co/padirazemi/Vgcspjd/bomber_friends_fase_242.pdfIn PDF document text
    • http://goxatut.iblogger.org/yoga_mudra_for_fatigue.pdfIn PDF document text
    • http://sqrab.top/zimefaferu8z2zr.pdfIn PDF document text
    • http://bitcoinlearningcentre.online/how_do_i_make_alexa_speak_spanishbf7co.pdfIn PDF document text
    • https://cdn.sqhk.co/fabavukunatu/dDyx7he/free_sample_business_plan_template_word.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rixexoto.rf.gd/33372093979.pdfIn PDF document text
    • http://koxaxinum.epizy.com/ilford_fp4_4x5_100_sheets.pdfIn PDF document text
    • http://dovobol.epizy.com/job_application_form_sample_word.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/basic_music_theory_test_questions.pdfIn PDF document text
    • http://kuxemozoxabonag.onlinewebshop.net/mosifazaxepidebovavozi.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_off0000e86b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE86B 4852 bytes
SHA-256: c7c2d500c710ac1fba2ed52eda9b6a08734243f923a40416d462899224bedd5f
font_01_sfnt_off0000f8fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8FB 12440 bytes
SHA-256: 562b298d634cc5c41fcc5eb7bda05750fab4d590771271df443d35658dcc6702