Malicious PDF — malware analysis report

Static analysis result for SHA-256 d46d32240f25b4c0…

MALICIOUS

PDF

62.9 KB Created: 2021-02-11 16:36:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: a8d2085bd02080ba95c395a2bf08b2e3 SHA-1: 8901428ab225fed5da65fe47937db5249818195a SHA-256: d46d32240f25b4c0e273ed3ffee78a54ea782b75205a7c99637c408384e3f6b7
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with common phishing lures.

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/123?utm_term=kate+spade+wellesley+medium+harmony PDF link annotation
    • http://minomesiguziv.22web.org/cost_estimate_template_free.pdfIn PDF document text
    • https://cdn.sqhk.co/banibudofe/ihhdEhf/60953664161.pdfIn PDF document text
    • https://cdn.sqhk.co/rerunaropiz/gfUhdja/guide_for_dream_league_soccer_2020.pdfIn PDF document text
    • http://tehnoprom.org/sprinkler_irrigation_system_componentsco4nl.pdfIn PDF document text
    • http://roburupagosode.iblogger.org/turudifobuzuf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403141/normal_5fe2139ee5313.pdfIn PDF document text
    • https://nipobajomofak.weebly.com/uploads/1/3/4/6/134641158/jugagapikaxepu.pdfIn PDF document text
    • http://atlas-copco.su/laputa_castle_in_the_sky_piano_sheet_music00ix3.pdfIn PDF document text
    • https://cdn.sqhk.co/zitedefew/vjg7idk/lefixutivub.pdfIn PDF document text
    • https://cdn.sqhk.co/tatomaxeriri/giaghhb/top_score_on_sat_2019.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://risitikavaj.rf.gd/kubozapiselafokobumiv.pdfIn PDF document text
    • http://pageziwakuvagu.epizy.com/66634324116.pdfIn PDF document text
    • http://rexagoxew.epizy.com/gonikulosavufo.pdfIn PDF document text
    • http://tefolinum.epizy.com/remittance_advice_template_free.pdfIn PDF document text
    • http://jezeladi.rf.gd/tafoxizunaxexepe.pdfIn PDF document text
    • http://zujexig.epizy.com/tabamow.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_off0000b6c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6C3 5364 bytes
SHA-256: 89fc9be62e115bd2cfbc58fdc340c770f2d863caec77ba2958cbc710996e1586
font_01_sfnt_off0000c8ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8ED 11200 bytes
SHA-256: c88b7ad41b6976fe3b00179da8dcb1049f22435ac98222b20c473364e7e4d0ce

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