Malicious PDF — malware analysis report

Static analysis result for SHA-256 350045b48a789135…

MALICIOUS

PDF

84.8 KB Created: 2021-03-19 17:38:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9660664e6e588dd3a1e1cdea6e82e835 SHA-1: b5afbf05f4f50d3af17da89e88f67878b2bc2e2a SHA-256: 350045b48a7891352b2b48a01662f3484a0be1a640907880370ab00f74f28d2f
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as a product manual, likely a phishing lure. The ClamAV detection and ML classifier strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it is designed to redirect users to malicious content, potentially exploiting PDF vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/aws?utm_term=toro+power+max+826+oxe+owners+manual
    • https://jirakeleda.weebly.com/uploads/1/3/5/9/135992973/zanofomudit_jopafuxu_favupefudus_fixafefan.pdf
    • http://jomotew.iblogger.org/vanilla_sponge_sheet_cake_recipe.pdf
    • https://xizenarinirogav.weebly.com/uploads/1/3/1/4/131437147/lawufumakut.pdf
    • https://mikatafa.weebly.com/uploads/1/3/1/3/131398449/moxupitub.pdf
    • https://vizejuvevu.weebly.com/uploads/1/3/2/6/132681979/5409848.pdf
    • https://cdn-cms.f-static.net/uploads/4403531/normal_5fe660129fec5.pdf
    • http://rudeniwabirever.iblogger.org/jigojizebalapadatoduk.pdf
    • https://galibemad.weebly.com/uploads/1/3/1/8/131856827/6881377.pdf
    • https://cdn-cms.f-static.net/uploads/4376852/normal_6048f6a34267e.pdf
    • https://pinobuni.weebly.com/uploads/1/3/0/9/130969003/xavijozukusiz.pdf
    • https://cdn-cms.f-static.net/uploads/4463529/normal_60515177385ae.pdf
    • https://zevakevo.weebly.com/uploads/1/3/5/4/135400716/3312989.pdf
    • https://cdn-cms.f-static.net/uploads/4403804/normal_604b70982dae1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://zoribele.epizy.com/badigetugipuvatiritodij.pdf
    • http://lelirovosas.epizy.com/bosch_go_cordless_screwdriver_user_manual.pdf
    • http://xijodakofifo.epizy.com/ordering_numbers_worksheets_3rd_grade.pdf
    • http://daxararudivoxik.rf.gd/luvixogefavovivipada.pdf
    • http://rixuzomobe.epizy.com/facebook_workplace_for_pc.pdf
    • http://rilulavonepuv.epizy.com/livre_pour_arreter_de_fumer.pdf
    • https://s3.amazonaws.com/wujodibu/fedex_photo_printing_locations.pdf
    • https://s3.amazonaws.com/jutenojamega/blockman_go_hack.pdf
    • http://wojodine.rf.gd/merger_model_breaking_into_wall_street.pdf
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001026c.bin
5e8f5455eada186d6190eccfc953f5ed6820b8baff3d7b52dd7a919f8f1b0cfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1026C 5308 bytes
font_01_sfnt_off00011464.bin
0d839a7a68d3e4b5baf7b94d99af08519030c259e72d466d17da045ab1108abf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11464 10272 bytes
font_02_sfnt_off00013785.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13785 4324 bytes

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