Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5fb14d97fdbae5b…

MALICIOUS

PDF

66.4 KB Created: 2021-02-25 19:16:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fd4ff312c8b80c1da1dd31fa02cdaf51 SHA-1: 9abdadcde08ae9558a5331f45f0c2dc72c082f65 SHA-256: c5fb14d97fdbae5bda16306c1fd2b6620d53e222f09a30da93496cc3055bfdfa
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://baarspo.ru/wix?keyword=yongnuo+622c+tx+manual PDF link annotation
    • http://kidepokapila.22web.org/beethoven_sonata_10_sheet_music.pdfIn PDF document text
    • http://world-wildshop.com/kufebisuwajosaul5gm.pdfIn PDF document text
    • http://creditchecktotal.info/turiruvijugalalefenezawdy6kl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422658/normal_6016044a8a5df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380083/normal_5fec3591efbff.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/a6Kghig/52782549012.pdfIn PDF document text
    • https://cdn.sqhk.co/zalivelo/5jeihid/glow_golf_balls_canada.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410016/normal_5ff261f5eda9e.pdfIn PDF document text
    • http://deduwewelu.iblogger.org/audi_a4_2010_manual_for_sale.pdfIn PDF document text
    • http://wolotalute.iblogger.org/coach_carter_quote_our_deepest_fear_meaning.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481052/normal_5fe56a9dbfa2d.pdfIn PDF document text
    • http://goo-y.xyz/ziwilikedadasevioesv6.pdfIn PDF document text
    • http://leopolds.space/tupekubc9u8.pdfIn PDF document text
    • https://cdn.sqhk.co/jebanufebejo/bgjy8I7/winky_lux_lipstick_pippy.pdfIn PDF document text
    • https://cdn.sqhk.co/novupezezis/dkhaieX/zenonia_5_paladin_stat_build.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://badubitoj.epizy.com/basic_linux_commands_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/acgih_tlv_book.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_off0000c75f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC75F 5160 bytes
SHA-256: be7f575438e35757ecad595b39bfb7a2bf99a67aedf2580c9cf8a055ccc98048
font_01_sfnt_off0000d8f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F4 10468 bytes
SHA-256: 943ab1eaaa3724c21452a3e3efb274ff3b42a750b85f757c9672fe8fcfb75f5d