Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade7466f84267fca…

MALICIOUS

PDF

102.0 KB Created: 2021-03-23 07:04:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: c454940f98313d65902aa9adddfd10f7 SHA-1: be6ebd917a74d05f97c411e3ead4c10cc23df644 SHA-256: ade7466f84267fcaa4d0d9028a99dc4077da2e77468c7fa848fdc7bc9623fb8e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded URLs, many of which point to disposable hosting or suspicious domains, indicating a phishing or redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to phishing sites or download further malware. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to exploit users.

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://druttle.ru/strik?utm_term=the+house+on+mango+street+sandra+cisneros+analysis PDF link annotation
    • https://wajajudamivigo.weebly.com/uploads/1/3/4/3/134359543/nupejufeboba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485329/normal_60216b527fe5c.pdfIn PDF document text
    • http://datinge.site/is_there_any_nail_shop_open_todaywucxa.pdfIn PDF document text
    • http://instapriz.online/film_action_full_movies_3gpy6son.pdfIn PDF document text
    • http://apsdd54gfv.xyz/a_series_of_unfortunate_events_4_seasonvbwx9.pdfIn PDF document text
    • http://tgesheff.xyz/veribz8kpb.pdfIn PDF document text
    • https://dofolemabumef.weebly.com/uploads/1/3/4/4/134458616/sadewuvemate.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477183/normal_604422864ff65.pdfIn PDF document text
    • http://fitokaps.xyz/are_vtech_cordless_phones_goodw6ucb.pdfIn PDF document text
    • https://voleruzogiz.weebly.com/uploads/1/3/4/6/134696629/8ccde443b287.pdfIn PDF document text
    • http://hydra.moscow/dabokarqtbdg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366632/normal_601959ffa8a56.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474170/normal_5ff39d7e4b975.pdfIn PDF document text
    • http://zanartcc.net/48526134250dd2oj.pdfIn PDF document text
    • https://jewinovezuxumat.weebly.com/uploads/1/3/1/4/131407424/5143892.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393893/normal_5fe42a5fc83cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444875/normal_602add8b9c2c2.pdfIn PDF document text
    • http://graatorama.space/41778721243s8cww.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://91e55214-10ad-44cf-a10a-60a9392df58b.filesusr.com/ugd/e1c37d_dc8cdba5582842849555742c96f0ab33.pdf?index=trueIn PDF document text
    • https://5663e088-3595-439c-971a-5873693bee35.filesusr.com/ugd/e98895_be4641f79b674158b1765555fb6a44fe.pdf?index=trueIn 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_off00014ed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14ED5 5404 bytes
SHA-256: fa959eb91bbfeb4812bc86868c227ea9720c6fcedf422be486dd760fdb0e1d52
font_01_sfnt_off00016110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16110 12176 bytes
SHA-256: 5c00f49b63fc8baaa971d490bacfe177e23ff63427131ac4523778ca750e99fe

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