Malicious PDF — malware analysis report

Static analysis result for SHA-256 b68b244ac9077a24…

MALICIOUS

PDF

79.2 KB Created: 2021-03-17 03:40:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a50e9c2cc873a8a0a361515bbcc56a0c SHA-1: b2e001476a1f4767fe418b262882b15cb38cb306 SHA-256: b68b244ac9077a24e943afd52908501a14bc7c807aed1eebb0fe5f24dbee2e8c
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://ponafet.ru/award?keyword=drip+irrigation+system+design+pdf PDF link annotation
    • https://cdn.sqhk.co/dudugetogi/ncjh4jc/bukusuvewuxunajerolate.pdfIn PDF document text
    • http://insurancecarusa.com/76991133326uhimu.pdfIn PDF document text
    • http://cetapp.xyz/7333700741238hcj.pdfIn PDF document text
    • https://cdn.sqhk.co/vidikusupegu/qgfhbuM/word_search_puzzles.pdfIn PDF document text
    • http://copyrightsupporthelpcenter.com/aiag_manuals_uk1p316.pdfIn PDF document text
    • https://cdn.sqhk.co/lubometusoz/ehcBgd6/oscar_fish_aquarium_size.pdfIn PDF document text
    • http://doweryklkq.space/quest_ce_quune_note_dintention2gt9u.pdfIn PDF document text
    • http://kukushka.space/what_temperature_should_a_precooked_ham_besaprd.pdfIn PDF document text
    • http://italiahot.space/8620543325hdrei.pdfIn PDF document text
    • http://item-mask.top/21153269610ejuo4.pdfIn PDF document text
    • http://8gusevshop.website/wuwejatuwopolezstszr.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/oZgcMjG/real_bike_race_2019_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/510265c2-663a-4d68-a54d-a6552d09151d/88245657444.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/panujal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6b054cf-d9b8-4e66-83ed-654c6c65ce9f/91637828858.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/butidonur.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/sap_s_4hana_1809_administration_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66810103-423b-47b1-b7cf-a4a67b9f5e92/9511332496.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/342f47ed-dc0b-4ecf-b63f-bb534341250d/watajoxikudutidubov.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/one_minute_manager_meets_the_monkey_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/what_order_should_you_read_the_divergent_books.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/monefizaloga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/583f3f70-429a-4000-958d-d89e222920f0/tableaux_de_provence_scribd.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/introducing_nlp_book.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_off0000f8b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B2 5428 bytes
SHA-256: cf892f736af130b77d0e3bc580c29945c20fba0e076d0362e13a115459bd57db
font_01_sfnt_off00010b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B25 10436 bytes
SHA-256: bf2e00f086bb84fbdc2b449a6189c231f05d22280b78a3260ae1cc2a31a722e6

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