Malicious PDF — malware analysis report

Static analysis result for SHA-256 18864692179184a4…

MALICIOUS

PDF

72.7 KB Created: 2021-02-04 02:47:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: deff5986a331e7ee27478df8f32dc7ed SHA-1: 31944b6561a286723a0f34ea6664d6936fb6cbd0 SHA-256: 18864692179184a40b0c657d7ba0446c626612a4c425b0e1ab48936d42aba922
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://jacksth.ru/wb?keyword=incorrect%20details%20on%20my%20credit%20report PDF link annotation
    • https://bipusisep.weebly.com/uploads/1/3/0/7/130775903/20a2821d3f6e.pdfIn PDF document text
    • http://oneplusonemain.xyz/750052652268rrku.pdfIn PDF document text
    • http://the-job.ru/health_science_journal_impact_factorgln45.pdfIn PDF document text
    • http://tublitalia.space/4370281296915r2m.pdfIn PDF document text
    • https://wanomumopanud.weebly.com/uploads/1/3/1/3/131379193/wavabomow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449402/normal_5fd90371a971a.pdfIn PDF document text
    • http://fepekasizu.iblogger.org/zokavovuwagunuzejojizax.pdfIn PDF document text
    • https://mosazipabefo.weebly.com/uploads/1/3/4/7/134735261/daxenovasad.pdfIn PDF document text
    • http://momentshop.website/zerorigumutegumanatemek0fn0m.pdfIn PDF document text
    • https://worizura.weebly.com/uploads/1/3/1/4/131437573/fulukuwog.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384152/normal_5ffe03fe4512b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380072/normal_5fe38ad1718c3.pdfIn PDF document text
    • https://wuwotozon.weebly.com/uploads/1/3/4/3/134315251/gowuxegogavogemobi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lobakixadob.epizy.com/garowonojizudetunat.pdfIn PDF document text
    • http://rogitini.epizy.com/96166460824.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/butado.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/zaxaxuwozili.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/rurazutas.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_off0000dfc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC8 5256 bytes
SHA-256: 4369b45ccf25960b82d6572c81cade57dba04f05209608e51b26a08a580a7df7
font_01_sfnt_off0000f19d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19D 10728 bytes
SHA-256: 92b1ee52d8e396479c5650086e707545f14218f4d58890362c8e4552be2c7d77