Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d01de4df991e251…

MALICIOUS

PDF

103.1 KB Created: 2021-03-16 03:26:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 04da7a6eebf8a9f11a6861c0249c99b7 SHA-1: aa7bf3f9143df642a256bf7c18fc73c5a5a702dd SHA-256: 9d01de4df991e251d9972dcf9f3b78b399d51cbba3c24797122561345a665e1a
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 embedded URLs and the overall nature of the PDF suggest it's designed to trick users into visiting a malicious site, potentially leading to further compromise.

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://soxebez.ru/strik?utm_term=is+there+a+cloud+etf PDF link annotation
    • https://burusezal.weebly.com/uploads/1/3/5/3/135306482/kadukebosik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491175/normal_6010ac3851062.pdfIn PDF document text
    • http://leririv.sportsontheweb.net/summer_baby_gate_manual.pdfIn PDF document text
    • https://jemikarabon.weebly.com/uploads/1/3/0/8/130815017/bibupazalaputijimex.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414502/normal_5ffc2bd8dec60.pdfIn PDF document text
    • http://mosomupusafebin.medianewsonline.com/virginia_woolf_novel_with_interludes_on_the_beach_crossword_clue.pdfIn PDF document text
    • http://sifegip.iblogger.org/80175515967.pdfIn PDF document text
    • http://fulitip.iblogger.org/free_powerpoint_templates_for_business.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470677/normal_6004186d667e8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469837/normal_5ff8949767ac8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412570/normal_5fd2d8d054827.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://13fad4bf-7224-44b3-802b-16842e97d241.filesusr.com/ugd/b14664_35919f3179144fb0b0e48532df774a49.pdf?index=trueIn PDF document text
    • http://sudolurimav.epizy.com/sorobev.pdfIn PDF document text
    • http://sotixavar.epizy.com/zipavidokigetunul.pdfIn PDF document text
    • https://77701ba7-c5ad-4750-ab17-5b03548f7fc0.filesusr.com/ugd/9a242c_62e9da5748c6407c9ba40c28512f9d34.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/picsart_mod_apk_android_1.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/cabal_mobile_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/bpt_syllabus_ccs_university.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/tozenawefa.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/bss_full_form_in_safety.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_off00015564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15564 5048 bytes
SHA-256: 97c89afb45fa7ae16fcd85709df0f090b11f1cd6d8d060848e9f612d8b0f56c8
font_01_sfnt_off00016684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16684 12140 bytes
SHA-256: aca6914cb447151bde2a16ba41dbb23b9647070c4765d63b03d54bc04d88d4d6

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