Malicious PDF — malware analysis report

Static analysis result for SHA-256 9277f5ec663ce513…

MALICIOUS

PDF

86.0 KB Created: 2021-03-17 03:08:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d4998aca65cc45e95016ac05ea775c26 SHA-1: 15723e5372e55169a7495654dde9e908360629d5 SHA-256: 9277f5ec663ce513a98c3e9048744f8b62bfcefe18911881f03f3368ec600644
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. 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 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://bologen.ru/wix?keyword=playstation+network+apkpure PDF link annotation
    • http://xujaxul.mywebcommunity.org/calendar_2020_template.pdfIn PDF document text
    • http://kojazunupetip.mygamesonline.org/43043840011.pdfIn PDF document text
    • http://paxezot.getenjoyment.net/blue_iris_software_alternative.pdfIn PDF document text
    • http://xisulekotitis.iblogger.org/17514858393.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/batiku/kinoxolawofogok.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/subepabifenasavusaj.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/ketep.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/komebeje.pdfIn PDF document text
    • http://xirozaza.onlinewebshop.net/arithmetic_series_questions_and_answers.pdfIn PDF document text
    • http://rafodize.rf.gd/which_is_better_medical_billing_or_coding.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/lincoln_power_mig_210_mp_welder_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/glpi_installation_guide_ubuntu_18._04.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/35584131017.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/xumodapatokomomate.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/backup_password_gmail_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8590dcc3-1145-4fe2-abca-c66a7d144b67/2552955889.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e5f461b-3932-4936-8c1c-700656d45d57/67278103923.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/dead_cell_android.pdfIn PDF document text
    • http://fiwusinuba.rf.gd/90732624833.pdfIn PDF document text
    • http://wowinagapujepok.epizy.com/medicamentos_anticolinrgicos.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/beatriz_sarlo_instantaneas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddfc73eb-690d-49bf-84eb-1c0f83a23128/mebopakowimumekinabepi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be3114e8-4400-4be9-9d1a-06ef60ca5243/25192971720.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3fea00e-6480-4d0d-84dc-35827a9b7047/kapubedi.pdfIn PDF document text
    • http://dafukip.myartsonline.com/vanosazubuxaxesuni.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_off000112f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112F6 5072 bytes
SHA-256: 3a8e958cbbc493f7a6d8c065b18e0596682c012d981f5baed24e286a9ab1eea1
font_01_sfnt_off00012463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12463 11464 bytes
SHA-256: 2340c57c275841e7440f00861bc0350cbe40fc10dfe37aa487e2c10cdcef072f

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