Malicious PDF — malware analysis report

Static analysis result for SHA-256 d68825a46b4c9c6d…

MALICIOUS

PDF

77.8 KB Created: 2021-03-20 19:10:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: aa25d9add1f75697525995244bea9b3d SHA-1: c98c5133f562655a2b1bccb1a026b739ee002297 SHA-256: d68825a46b4c9c6d6ba9130d209049ce390082faf826da8e6c13df3cec34776f
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URIs, with one specifically pointing to a suspicious domain ('soxebez.ru'). The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The presence of external links suggests an attempt to redirect the user to a compromised or malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/wix?keyword=ciclone+lyrics+takagi PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4445333/normal_5feb1bc1315c6.pdfIn PDF document text
    • http://wiwusigeronisu.66ghz.com/11461645603.pdfIn PDF document text
    • http://zoguponuwuxoli.medianewsonline.com/mathematics_textbook_grade_10_12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414169/normal_6042d52e4b596.pdfIn PDF document text
    • http://bumawusuka.mypressonline.com/42999000899.pdfIn PDF document text
    • http://togaxifobuf.mypressonline.com/curso_de_aprendizajes_clave_preescolar.pdfIn PDF document text
    • http://ravovenovibu.medianewsonline.com/chemical_engineering_technical_interview_questions.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490929/normal_5fe594b1d210c.pdfIn PDF document text
    • http://likefetevu.getenjoyment.net/bewixafi.pdfIn PDF document text
    • http://patajafurep.mywebcommunity.org/garil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421782/normal_602db279bc1b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413125/normal_602c31baa1553.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://434dcbc4-7bd9-40fe-99bf-e102daebf961.filesusr.com/ugd/07ef24_c73700b2240745799493bccfa83b615b.pdf?index=trueIn PDF document text
    • http://powagamojij.onlinewebshop.net/43640948452.pdfIn PDF document text
    • http://bopiguxa.atwebpages.com/xodufovafuwopazaru.pdfIn PDF document text
    • https://40ba1f7a-6e91-49bb-bbb8-dfbb40a2bc60.filesusr.com/ugd/22bf55_4e54490e3bdd4f9d87902a42a3ac8a79.pdf?index=trueIn PDF document text
    • http://kelujatideligo.epizy.com/school_days_mod_apk_1._190_unlocked.pdfIn PDF document text
    • http://nenadizalotoj.epizy.com/johnny_the_homicidal_maniac_directors_cut.pdfIn PDF document text
    • http://livirava.atwebpages.com/chevrolet_beat_2020_ficha_tecnica.pdfIn PDF document text
    • http://fuxazulofonu.epizy.com/25433298655.pdfIn PDF document text
    • https://d23eb412-52e1-45ef-a32a-0c032022daee.filesusr.com/ugd/03485a_cbbf5fc973244ef3b95ebf4c12154a79.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD43 5036 bytes
SHA-256: f711d8cb26a1a9b39e09d97d24340c25230f618632b7220c1fc764634bc29e45
font_01_sfnt_off0000ee84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE84 11472 bytes
SHA-256: 1d03048d291479f76e5e8a801ed1ab2e0069bb1e11e2655cf15219706d6ffda1
font_02_sfnt_off00011370.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11370 16036 bytes
SHA-256: 2b0928db34fac5c89b0605429d14de9dd1587b94c3357c7ad3c21eff7068e068

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