Malicious PDF — malware analysis report

Static analysis result for SHA-256 94bb9368e02a9b76…

MALICIOUS

PDF

64.4 KB Created: 2020-12-03 06:31:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: fa0cf168d568708a8ce20c3a7577081e SHA-1: d633e0aee8d8a743fa60a9c93a7d27c7d33fcd63 SHA-256: 94bb9368e02a9b7695d9d836688e0c361ca2ed4d4c609c8f87b58863685c1957
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 0.9998

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://trafffe.ru/strik?utm_term=lee+county+nc+school+calendar+2018-19 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413225/normal_5fa21199e8742.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc5932f0b6b03258f55155a/t/5fc82761e101942bf765acff/1606952802439/agar._io_mod_apk_macro.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/sao_episode_7_english_dub.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc169f3e2fce462bc8f8ca6/t/5fc28ad03c6ccf69f3b0d7ca/1606585044171/breaking_bread_bell_hooks.pdfIn PDF document text
    • https://s3.amazonaws.com/xatojem/drivers_license_reinstatement_letter_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7eed1e23-d32a-4121-973a-b4c0d2d7f926/37521960208.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/effects_of_rural_urban_migration.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/100_examples_of_blending_words.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1a00dd49dd124473946a2/t/5fc2eef408845d0924eafd01/1606610676809/aint_no_rest_for_the_wicked_tab.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1520988c99b6d37aa082c/t/5fc4180e18e72e5fdb586fee/1606686735270/75228297840.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc656cf104edf1d77a64faa/t/5fc6c2d9e2dcb1274dd86503/1606861529965/rules_dominoes_partnership.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e2c7a01-dcc5-42a9-bc81-e21d2b426c42/wifiwudugufaza.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc514f6bf71053ccb2ab590/t/5fc524bfa97599144e9e32f7/1606755525250/sky_pillar_pokemon_emerald_walkthrough.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_off0000bd00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD00 5780 bytes
SHA-256: b60caf287edac2024f08c855fb7a7c52f292d96762ab3587988c136b5fd963f9
font_01_sfnt_off0000d0af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0AF 10568 bytes
SHA-256: 73671ae10c550dfb36f4c3a7b783c6b870d23e0ec2228c023585d57882dafa08

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