Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba73373ff594b718…

MALICIOUS

PDF

68.5 KB Created: 2021-02-15 07:18:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3e47b198ac13ca65733fa316b7d3d08d SHA-1: 60ab97cd275f5f6633f06f0bfd1f6e2de8b0745b SHA-256: ba73373ff594b718f49ccba3f9966b529f6579191f680cc20011e65d8fb29de5
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://maypoin.ru/wb?keyword=transfer%20pdf%20to%20excel%20sheet PDF link annotation
    • http://copyright-services-us.com/dayankllk_nelere_baldrxlz2f.pdfIn PDF document text
    • http://adyga.site/79337009371nasb0.pdfIn PDF document text
    • https://cdn.sqhk.co/xulawajikigi/jjhbILc/taxiz.pdfIn PDF document text
    • https://cdn.sqhk.co/xufatirumina/jg4hbhc/8163935070.pdfIn PDF document text
    • http://rimaloxal.22web.org/chennai_express_movie_full_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/iagiahe/expression_chickens_come_home_to_roost_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/nokotadi/fiipZNg/89369481863.pdfIn PDF document text
    • https://cdn.sqhk.co/xivovido/hHpwJn2/muvopoposopowamixuzarite.pdfIn PDF document text
    • http://muzolifuvekimew.22web.org/mac_os_catalina_vmware_image.pdfIn PDF document text
    • http://marketes.pro/pedometer_app_for_iphone0kt8c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://podozedomusajor.epizy.com/niv_dramatized_audio_bible_free.pdfIn PDF document text
    • http://bavidoripo.epizy.com/wonebofolemopewavu.pdfIn PDF document text
    • http://wedagavuvux.epizy.com/84706792394.pdfIn PDF document text
    • http://luxotenudiwuzu.rf.gd/aswamedham_telugu_movie_audio_songs_free.pdfIn PDF document text
    • http://junimufik.epizy.com/mail_merge_script_google_sheets.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_off0000d066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD066 5260 bytes
SHA-256: 5694d17665c5bd6a32bcdddb1368b4748212b7dc847cf8b1106ba26c65929605
font_01_sfnt_off0000e242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE242 10408 bytes
SHA-256: 9309c4d71e9aa86a23ce94b0ce866b69039cc0f79b87927485508a754dff2ea7