Malicious PDF — malware analysis report

Static analysis result for SHA-256 074773874a2819c8…

MALICIOUS

PDF

77.8 KB Created: 2021-04-04 06:31:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: bd08abe022ab6db9c1e4bbb73838c1c6 SHA-1: b2242790eded96772196b792f006a6e1076463af SHA-256: 074773874a2819c85a8728a350261809f8bfafd3ade91231e229473386d29e87
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9991

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://maypoin.ru/wix?keyword=cat+ninja+3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380539/normal_600ba40b9a170.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481069/normal_5fe3ae47d8ed7.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/aghJhaP/army_car_driver_game_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447108/normal_604edfeba79b5.pdfIn PDF document text
    • https://cdn.sqhk.co/loganidob/Cjc5hjC/damanuxusanosaxe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421217/normal_602a42cf27885.pdfIn PDF document text
    • https://cdn.sqhk.co/marezotije/zyigPJm/kuzewepafijonoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378383/normal_6055962261d15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471484/normal_5fd175eb845de.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404965/normal_600029aa8a94d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488116/normal_5fcbcc49a9d90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504554/normal_5fe9336cba178.pdfIn PDF document text
    • https://cdn.sqhk.co/rabawula/e3ZYELP/homeschooling_resources_free_downloads.pdfIn PDF document text
    • https://cdn.sqhk.co/tidaxetosi/eGCifje/mepimeziri.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486981/normal_6010aed728f1b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458854/normal_5ff84d7032d98.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503197/normal_5ff30e095532c.pdfIn PDF document text
    • http://xukavokuboloj.iblogger.org/85600752190.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454825/normal_603f05ff6724c.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/gapivegek/90394326470.pdfIn PDF document text
    • https://s3.amazonaws.com/fipijife/makalah_unsafe_abortion.pdfIn PDF document text
    • http://romolote.rf.gd/ielts_academic_writing_task_2_samples_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/kiremojomepidivukozesa.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/metabolisme_anaerob.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/41389838787.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F9 4520 bytes
SHA-256: 39ff1f13bfeab9ca2bc6e89e5c1f570355e8fd4ab99a7069c9ab1b49020247d9
font_01_sfnt_off0001036d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1036D 11440 bytes
SHA-256: 7a87e665df509434727413c390bb245da1c52246c0d038adc6dc3b74b180e5eb

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