Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9b7c3564cdf4439…

MALICIOUS

PDF

85.9 KB Created: 2021-02-22 10:00:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 3c7b819ff5c67bf21d161b94daa68daf SHA-1: 93f70c3dc063694b07eb4bd4a3ad6a21c33b247b SHA-256: a9b7c3564cdf4439fffe92c4b40e934962f31c5d90df0dfbbc93d43a21b5af74
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://baarspo.ru/wix?keyword=the+living+earth+textbook+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403804/normal_5fcef87799174.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453719/normal_6006ea50b91db.pdfIn PDF document text
    • http://choosemadam.site/kuposefedufexajujd32e0.pdfIn PDF document text
    • https://cdn.sqhk.co/sosobita/viahjha/ziborifujosixi.pdfIn PDF document text
    • http://topstudy.fun/aronson_social_psychology_10th_editionmxes9.pdfIn PDF document text
    • https://cdn.sqhk.co/gisepavuv/cHIhehj/julinofidarojefe.pdfIn PDF document text
    • http://ourfanz.com/los_24_tiempos_verbales_del_ingles_completo1czvl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453334/normal_600947e579b33.pdfIn PDF document text
    • http://gouliwer.online/csd_canteen_online_application_formozprn.pdfIn PDF document text
    • https://cdn.sqhk.co/kagelemovo/0ibTVyw/zaseje.pdfIn PDF document text
    • https://cdn.sqhk.co/vefapatape/fig3idy/58037411003.pdfIn PDF document text
    • https://cdn.sqhk.co/gafokoru/dgciijc/sapadomegonokariz.pdfIn PDF document text
    • http://italystore.pro/79._chemical_symbol_parade_answer_key2x5pb.pdfIn PDF document text
    • https://cdn.sqhk.co/tisewesir/BYidiak/the_quest_keeper_app_for_android.pdfIn PDF document text
    • http://menbp.online/programming_nodemcu_using_arduino_iden0z3p.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/iheMMuI/dedepajaxifadunu.pdfIn PDF document text
    • https://cdn.sqhk.co/zadoweferoxe/UiejaHX/59318602217.pdfIn PDF document text
    • http://lofitner.buzz/simplifying_radical_expressions_worksheet_answersoip3j.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
    • https://s3.amazonaws.com/wovisak/collocations_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/57694926834.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/music_sheets_for_guitar_blank_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/vegotixalu.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10772 5196 bytes
SHA-256: a5b3f98b43a3ce807cbcc5ce31e947efc66ce99335b8d6786c41a4639d887050
font_01_sfnt_off00011911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11911 10208 bytes
SHA-256: fe27a690d2c0d34080a22fcda6724f7c1a3c72ea4bc35e23f8f9a4d4f0f852c8
font_02_sfnt_off00013bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BF4 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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