Malicious PDF — malware analysis report

Static analysis result for SHA-256 26aac224b90324f6…

MALICIOUS

PDF

78.0 KB Created: 2021-04-01 13:19:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a04af58aee4121610183cb85f9d58cda SHA-1: aa17e8255645151a0405b1d6d768fce442d8fdc5 SHA-256: 26aac224b90324f628abdb6d4b2acc77cb09a0182b327177c0e75d9d7cd6c0dc
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the document's deceptive title suggest it's designed to trick users into navigating to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://zajinet.ru/wix?keyword=ford+motor+credit+duplicate+lien+release
    • http://stassikorskyi.com/gedupexilukemelukenax0ai0.pdf
    • https://cdn.sqhk.co/poxirowo/fIhfjg9/sandwich_maker_recipes.pdf
    • https://cdn.sqhk.co/kewawukufiju/gjhih6h/foursquare_city_guide_apk.pdf
    • http://pemowovamig.iblogger.org/wogesakula.pdf
    • http://toportt.online/bogomaviramaxobeh8b01.pdf
    • http://pedrons.space/turkish_airlines_email_formatra7y4.pdf
    • http://vizionsmc.net/forisobimemikajimb637.pdf
    • http://zisetevopazotaw.iblogger.org/remesugobubaxipuxelopadu.pdf
    • http://smartycredit.info/diary_entry_questions_and_answersaf4kw.pdf
    • http://nelitip.22web.org/26042569121.pdf
    • http://loveantravel.xyz/845703642848hc97.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://romuwoturifitam.epizy.com/38933738534.pdf
    • https://1eb42bdc-3da6-4b32-b75f-4382f1721f8e.filesusr.com/ugd/35474d_f6a704aff9224d85a1f7a8348a8bad94.pdf?index=true
    • http://xaxubel.rf.gd/29737918133.pdf
    • http://ravuxigud.epizy.com/how_to_draw_a_simple_human_nose.pdf
    • https://7a69a04d-b0b3-478e-a927-895b34d3dd44.filesusr.com/ugd/159848_aa01a2bb5ae740a6937cdeada4df0443.pdf?index=true
    • https://1b6fe947-be7e-4494-9a94-f566f178d3d1.filesusr.com/ugd/89064d_bd62db2ec9e9451ebe2d8ccaa29d6fac.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f20c.bin
1916b36379641c1401d9137f96c7f798a0a95783dfc3ed2bfb90324795692b42		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF20C 5176 bytes
font_01_sfnt_off0001038d.bin
3797dc12aefa478eb81e62324203c8502e32126271a5a21554c52682e062fe64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1038D 11964 bytes

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