Malicious PDF — malware analysis report

Static analysis result for SHA-256 946fa491e8a05817…

MALICIOUS

PDF

69.1 KB Created: 2021-02-14 01:51:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 675003a46389d5fe5bc1efd98628bcd5 SHA-1: cfffe1e36f80cc2fb97aee3f77c5e817b90d9292 SHA-256: 946fa491e8a058177584bd1d3b72c3e33a4584628282eb9f242babbd7b851f40
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://maypoin.ru/wix?keyword=china+taste+portland+me+menu PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458848/normal_60233bf44a9dd.pdfIn PDF document text
    • http://xotizel.iblogger.org/zanebevunapefozebesutaga.pdfIn PDF document text
    • http://disujexa.22web.org/solving_equations_with_brackets_and_fractions_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/zanemulazif/jeKShMc/vunafudonebafufofevu.pdfIn PDF document text
    • http://detodefinedex.22web.org/messenger_lite_apps_2018.pdfIn PDF document text
    • https://zofumevovuve.weebly.com/uploads/1/3/0/8/130874077/3e29327c9319c30.pdfIn PDF document text
    • https://kikitepolo.weebly.com/uploads/1/3/4/5/134514310/wujapovepunemof_dolodewalonenig.pdfIn PDF document text
    • https://gozerezujokosas.weebly.com/uploads/1/3/4/8/134856803/6201681.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/operatoria_dental_barrancos_descargar.pdfIn PDF document text
    • http://sibedegaxuwo.rf.gd/hssc_admit_card_direct_link.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/veneloz.pdfIn PDF document text
    • http://widagutevutedik.epizy.com/math_test_answers_app.pdfIn PDF document text
    • http://nibejodawugizex.rf.gd/cg_police_si_admit_card_2018.pdfIn PDF document text
    • http://mutifitiwexo.epizy.com/mechanical_advantage_worksheet_physical_science.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/letterhead_free_word.pdfIn PDF document text
    • https://s3.amazonaws.com/megelugik/49409053746.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_off0000d16d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD16D 5104 bytes
SHA-256: 07c1e69436ebc23b472893b37b6c4b77aa6e671281fb5dcc4d64c5e48a3b161a
font_01_sfnt_off0000e293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE293 10796 bytes
SHA-256: 01bd70d5c3d141d87b1eef01bbc810025bf6b8e843a357f5628fef4eb0228ef5