Malicious PDF — malware analysis report

Static analysis result for SHA-256 64f9b244e7e646af…

MALICIOUS

PDF

76.3 KB Created: 2021-03-22 23:54:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 886bbdd08ee463f2345df6e9e5d0e6d5 SHA-1: 5be34ebc3c0e01e69e2f85a516d74e3abd4f3a5a SHA-256: 64f9b244e7e646af5a589bbb91715bd8f9889ac94dd6c6e620ca0f70550f896d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ponafet.ru/strik?utm_term=bryant+furnace+manual+reset+switch PDF link annotation
    • http://foyou.store/formula_para_calcular_perdidas_insenlhby5.pdfIn PDF document text
    • http://hd-cam-mirror-up1.club/21040476437ctjkf.pdfIn PDF document text
    • http://endi-itali.space/26055278567qmxwc.pdfIn PDF document text
    • https://cdn.sqhk.co/kibukumivu/jbiggjd/picture_of_bumblebee_transformer_car.pdfIn PDF document text
    • https://cdn.sqhk.co/sipebesoxu/gjpcJjg/tozogivubimafoduvoge.pdfIn PDF document text
    • http://antinomi.design/2965150089164ngn.pdfIn PDF document text
    • https://cdn.sqhk.co/nodujugebi/hcrhbgj/k_yamet_kombat_arena_pc_indir.pdfIn PDF document text
    • http://maewallace.com/bts_flute_sheet_music_serendipityojzz8.pdfIn PDF document text
    • http://prolac.ru/90728246995og31f.pdfIn PDF document text
    • http://baranaydin.org/ti_nspire_cx_cas_how_to_install_gamessv2w5.pdfIn PDF document text
    • https://cdn.sqhk.co/dowotovewi/bkYK6Tk/candy_legend_games_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xesigeze/kefur.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/22412365455.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/80039295550.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/mogasax.pdfIn PDF document text
    • http://kogejikez.epizy.com/beautiful_background_hd_wallpaper_free.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/xuwilopubeja.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/herman_miller_aeron_vs_embody_gaming.pdfIn PDF document text
    • http://runodeb.rf.gd/chase_checking_account_balance_sheet.pdfIn PDF document text
    • http://birevave.rf.gd/assimilation_in_english_language.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/basic_korean_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/29156393274.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_off0000ec58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC58 5364 bytes
SHA-256: c4d6d2b7b366958489eefb513ca8ed4982db4aa72eabeb5f21bed70c2a0b9c8e
font_01_sfnt_off0000fe8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE8A 10808 bytes
SHA-256: 03ee898cda0a1cdd11bb009e2386117b3e3520e5a4251b59b99cf4e0d9cc33a1

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