Malicious PDF — malware analysis report

Static analysis result for SHA-256 46b00a1d3f690279…

MALICIOUS

PDF

73.2 KB Created: 2021-03-29 07:54:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: c474353acc964667ddf0b20c1a6f636c SHA-1: 2ffa01065eeb82bac001052ffe090c0e7bc42256 SHA-256: 46b00a1d3f690279adfa1d06b3e8acc786b594cce95d6f0ffd8ddd3646298cdc
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as Pdf.Phishing.Trojan-d2568dad23a94d95. It contains an embedded URI pointing to a suspicious domain, 'jumiwimov.ru', which is likely used to host a malicious payload or phishing content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://jumiwimov.ru/strik?utm_term=the+magickian+phillip+cooper PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4425929/normal_5fe7480861743.pdfIn PDF document text
    • https://demijogukif.weebly.com/uploads/1/3/1/3/131382539/dubuzugelinud.pdfIn PDF document text
    • http://lodazumutedine.iblogger.org/occupational_health_and_safety_management_book.pdfIn PDF document text
    • https://misurenagikokiz.weebly.com/uploads/1/3/5/3/135332419/vejitu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366642/normal_604f5e85f374c.pdfIn PDF document text
    • http://islemleriniz.org/kizojafizanemobubesesezorukb5i.pdfIn PDF document text
    • https://jinugavov.weebly.com/uploads/1/3/4/4/134438703/xawojub.pdfIn PDF document text
    • http://bcpzonasegura10beta-viabcp.com/algebra_1_inequalities_worksheet_answerss02tl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367938/normal_5ff1bd4901fea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465390/normal_5febcc9b7cb4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462986/normal_6055f45d58f59.pdfIn PDF document text
    • http://idealslim-ordina.site/tizimoxutotd0t24.pdfIn PDF document text
    • http://bit7.top/19177179795aaqbx.pdfIn PDF document text
    • http://springtea.space/jafomegureroly3fni.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ramejepazino.rf.gd/joseph_prince_rapture_sermon_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/una_forma_de_comunicacion_no_verbal_es.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/mammogram_guidelines_after_breast_cancer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfb551f7-7b94-419f-a12c-e95261c29472/luxat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac7f39b3-0f72-41f7-be41-907fd14ea5f7/dragon_age_origins_gift_giving_guide.pdfIn PDF document text
    • http://legofebufulemo.rf.gd/8871213169.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/700873692.pdfIn PDF document text
    • http://togujekunigek.rf.gd/nifelokotojibitugowojowe.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/etea_test_2018_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/royal_mail_international_parcel_costs.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_off0000e31c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE31C 5180 bytes
SHA-256: 8242312ae6012af969ec2e3117f3815c46158f9f5d3876f89d589850320999e4
font_01_sfnt_off0000f497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF497 10308 bytes
SHA-256: 91e4288d75d53d09cfd1b467d07f8af9f67023d504e11f4e2d0de0e30e3e80c3

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