Malicious PDF — malware analysis report

Static analysis result for SHA-256 157e3be6f95a5098…

MALICIOUS

PDF

70.2 KB Created: 2021-03-12 13:46:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1b78ae88988ec50b7797be9eb85ac0ee SHA-1: 3030e8b2572f2746600fa640810722cc1ca4538c SHA-256: 157e3be6f95a5098d7a205bc007e9419b2dc0906cba2ba1b9039fcd151afad0d
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://kuzutuzo.ru/wix?keyword=sin+cos+tan+worksheet+with+answers PDF link annotation
    • http://testrun.ru/sowulowepugito2d8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496580/normal_6016706a887ab.pdfIn PDF document text
    • http://copyrightnotice-ig.com/karuzulevategsjodj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468819/normal_5fd805a5c83a4.pdfIn PDF document text
    • http://help-mediasupport.com/raburatebomob4oex.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454303/normal_5fca52534dbc2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374196/normal_604710a5078c3.pdfIn PDF document text
    • http://wevoselaxoto.66ghz.com/bowozojeso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416669/normal_603503a076071.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420019/normal_602f427594660.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/87d7b122-4604-433f-93d9-7b30a2590627/how_to_make_arabic_calligraphy.pdfIn PDF document text
    • http://xiradev.rf.gd/zusikufukewiwupatuxewoju.pdfIn PDF document text
    • https://acfc0e76-311d-46af-9c13-f46c112eb424.filesusr.com/ugd/f90bad_b2592e72a296499fa5b3ae548b47be2d.pdf?index=trueIn PDF document text
    • https://ad843f61-c544-48d7-8cfb-3c048b9edb46.filesusr.com/ugd/0dd9ed_50b570d5f20b417e812e95fed83fafdf.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d351ed68-040e-46dd-ab42-24632a112b44/lg_4g_lte_phone_cases.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f49bcb7-a80e-4190-83a7-0e24b01f6d68/mksap_17_download.pdfIn PDF document text
    • https://ce2645ba-e89a-43d5-afff-5c0150757291.filesusr.com/ugd/c63dba_804504acb9854a6688cc09ddfb847942.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/130ed7b5-e7ed-45ce-937e-eb2e617e17ea/human_resource_management_applications_7th_edition_solutions.pdfIn PDF document text
    • https://f6b99bba-f064-431f-ab68-6eacb91b2703.filesusr.com/ugd/35e1ce_5dda0266230f41b5bc19689fc6a32c8f.pdf?index=trueIn PDF document text
    • http://lizolubemerawi.epizy.com/simple_ecommerce_joomla_templates.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_off0000d65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD65D 5112 bytes
SHA-256: b34ca9399e8bc79acc1a1a548e7ca8dec7e79a8e2b69c2dcf9e70fd537f742d0
font_01_sfnt_off0000e7d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D1 10356 bytes
SHA-256: 9d65840a72ae8facf8ba04246904ed4ca1842b13b743e2b45cd911fe322e1221

Open this report in the interactive analyzer, or submit your own file for analysis.