Malicious PDF — malware analysis report

Static analysis result for SHA-256 70af08ecba2cb389…

MALICIOUS

PDF

73.4 KB Created: 2021-03-12 13:46:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 96daa5ffb66d1014febe7ad47b536a40 SHA-1: 4ca68335ad6dddb764189b18e8be81df7e5217d3 SHA-256: 70af08ecba2cb38960616867752d466487ca432caf674bf8782490c3d14f5c8b
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 0.9995

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://fokemale.ru/wix?keyword=simple+and+compound+probability+worksheet PDF link annotation
    • http://toppiksnack.xyz/danosojijdhe6x.pdfIn PDF document text
    • http://geleostone.online/futisujinc86z.pdfIn PDF document text
    • http://ukrdomonis.xyz/kizowatetowamuk314f8.pdfIn PDF document text
    • http://legionmone.xyz/gakelopabalaxokaluj5vmn7.pdfIn PDF document text
    • http://lafovug.iblogger.org/hsslive_answer_key_2019_march.pdfIn PDF document text
    • http://rigipufefe.iblogger.org/java_platform_jdk_10_32_bit.pdfIn PDF document text
    • http://gofimowekes.66ghz.com/lisugaporipaguzes.pdfIn PDF document text
    • http://bokubewere.22web.org/matlab_simulink_tutorial_for_electrical_engineers.pdfIn PDF document text
    • http://jaxorad.22web.org/brusali_bed_frame.pdfIn PDF document text
    • http://nowuweg.iblogger.org/what_is_a_reasonable_401k_fees.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/wofaxil/answer_2_orthopedic_shoes.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/modezapus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1565f881-301e-4bb3-9cf4-1e6d21e23a7d/millennial_hospitality_series.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/stages_of_prenatal_development_worksheet.pdfIn PDF document text
    • http://fomupobidep.epizy.com/everest_base_camp_trek_guide_book.pdfIn PDF document text
    • http://zumoxevozasumek.epizy.com/anthony_giddens_socjologia_chomikuj.pdfIn PDF document text
    • http://rekujub.rf.gd/white_tiger_netflix_us_release_date_and_time.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f40c95ee-6509-45c8-ae72-bd662c19c8b6/23711694809.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbe2d263-44fe-48a8-8b7a-5b061437e1e9/45968533814.pdfIn PDF document text
    • http://xoviketi.epizy.com/touch_vpn_for_windows_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9da4a804-1f2f-4e27-af50-cb8d970d6e2c/us_military_surplus_tents_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/34559575308.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_off0000e0ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AD 5812 bytes
SHA-256: c5e00baeae2aec20abbaf73994e69fe95aef106bc358b56ed019f15e83224000
font_01_sfnt_off0000f453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF453 10320 bytes
SHA-256: 3636a0d5c2a5b2503d8a88c2ab3e7a42d39804c1fdafb50c369e47fef5359e54

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