Malicious PDF — malware analysis report

Static analysis result for SHA-256 24c752529035e6bf…

MALICIOUS

PDF

134.7 KB Created: 2021-04-21 07:30:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 246f79d70ef44b0d1738335748ec4b88 SHA-1: 20e7e440f467e5cc06f0b31f944f197488dba6c9 SHA-256: 24c752529035e6bf4c95a2003a04ca1805d61263ef5b2dcc305f35e289d61c88
96 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one prominent URL pointing to a suspicious domain related to car parts. The ML classifier and ClamAV detection strongly indicate maliciousness, likely a phishing attempt or a lure to download further malware. No scripts were extracted, but the presence of external URIs suggests a redirection or download attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://kuzutuzo.ru/strik?utm_term=2012+chevy+impala+ltz+motor PDF link annotation
    • http://rotukefune.getenjoyment.net/how_can_u_tell_if_your_transmission_is_slipping.pdfIn PDF document text
    • http://fifuxuzod.iblogger.org/dictionnaire_informatique_anglais_franais_en_ligne.pdfIn PDF document text
    • https://zilibadokaji.weebly.com/uploads/1/3/2/6/132680781/06668.pdfIn PDF document text
    • https://retenosarubus.weebly.com/uploads/1/3/2/6/132695405/7b408225.pdfIn PDF document text
    • https://memezuwiz.weebly.com/uploads/1/3/4/7/134702577/5aa290e92.pdfIn PDF document text
    • http://duvejiwuxikon.getenjoyment.net/solekelowazusexamegobe.pdfIn PDF document text
    • http://movawizaxaxato.mywebcommunity.org/29052798775.pdfIn PDF document text
    • http://depigajozilot.22web.org/determination_of_casein_in_milk.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/sikuva/huge_python_found_in_florida.pdfIn PDF document text
    • http://wewapozolebupo.epizy.com/livuzefelapozejujal.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/duzideporebu.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/nasepaboxatozawu.pdfIn PDF document text
    • http://xuzivamozevimi.epizy.com/67560060354.pdfIn PDF document text
    • https://fdb4f28e-c637-431f-967d-457feef73efb.filesusr.com/ugd/cf5aa9_0f300e66400a4490896ad1cce3d23b09.pdf?index=trueIn PDF document text
    • https://7915398d-c9c2-4241-abdb-40cf742e4b8d.filesusr.com/ugd/d4df0f_f2edf5ce390d4e0abc7fc8b9ef2003d8.pdf?index=trueIn PDF document text
    • http://bosapaw.rf.gd/deerfield_beach_fl_restaurant_guide.pdfIn PDF document text
    • https://80172413-d145-4b71-b7cf-4a007d76ad29.filesusr.com/ugd/cacfd7_362c3ad452394dabb0ab474dc61fbd71.pdf?index=trueIn PDF document text
    • http://wufikemofumop.atwebpages.com/48730775261.pdfIn PDF document text
    • http://dirosulazab.rf.gd/22602563285.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/family_budget_planner_templates.pdfIn PDF document text
    • http://risuveliki.rf.gd/vigo_apps_free.pdfIn PDF document text
    • http://puzazusor.rf.gd/budget_highlights_2020.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_off0001d5fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D5FE 5440 bytes
SHA-256: 75330e49461ce9fddd9b8518e73415ddbd693332c4ac6b75103f1dee98f790ae
font_01_sfnt_off0001e86c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E86C 10692 bytes
SHA-256: 16975f0b9e6a6982615a1e5060f50d084f3f392b0d382073664bf4a035fcf5d1

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