Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b166655851659f6…

MALICIOUS

PDF

68.7 KB Created: 2021-03-02 13:52:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: edf7a2a0a62ced3f5e171ac40d396846 SHA-1: 3d2d8947813c60c949216ad3b6238124b3051233 SHA-256: 7b166655851659f67a3cfc0f549dc690492985890b8365a8935b23e017d773d0
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://zajinet.ru/award?keyword=computer+bookstore+toronto PDF link annotation
    • http://fordist.ru/wixiribakemuy0ene.pdfIn PDF document text
    • http://medicinfo.online/best_beginners_book_to_investinggz2zf.pdfIn PDF document text
    • http://sexesex.site/debuzewajaselogafurozizeqvwi7.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/achcaxD/advertising_campaign_big_ideas.pdfIn PDF document text
    • http://familyit.pro/clean_bulking_diet_planh1alk.pdfIn PDF document text
    • https://cdn.sqhk.co/lekifuwixal/gghjfjO/92455358142.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401703/normal_60342002a9000.pdfIn PDF document text
    • http://reduslim-italiaofficial.site/panic_at_the_disco_piano_sheet_musicb65i5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365642/normal_603db35bac3da.pdfIn PDF document text
    • http://segwaywheelchair.ru/75609324359zw89.pdfIn PDF document text
    • https://cdn.sqhk.co/zegofurop/SZjggqS/bucket_list_movie_memorable_quotes.pdfIn PDF document text
    • http://24goodstore.site/wifarokabajonekidag5ucjr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481819/normal_6003ed5dba2c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393180/normal_5fc6b34a9189a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421050/normal_602d72d8c9db2.pdfIn PDF document text
    • https://cdn.sqhk.co/takulowizi/aIkM3gf/cara_top_up_diamond_ff_pake_pulsa_murah.pdfIn PDF document text
    • https://cdn.sqhk.co/pujazojiwixi/Chehchc/53199711167.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d11a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD11A 4832 bytes
SHA-256: 190a51ec32198270f1beaeeac55987415ba633995d199a4a2ce1535f618d3c54
font_01_sfnt_off0000e169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE169 10716 bytes
SHA-256: 739649ad3738c1a03b3173ce2f11056fc4bd916eb29788ff9f58b711df386f01