Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9924d96b35b978c…

MALICIOUS

PDF

64.6 KB Created: 2021-02-17 19:04:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1332542ed9e2d8ef6c2b00b51002d324 SHA-1: 1a442267ca3eb6e827a3a56ee8aadd16989a408a SHA-256: b9924d96b35b978c9f174a8abb5b784ac7ca50749a02947c4d9a5f183da102c1
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 0.9997

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://leonvi.ru/strik?utm_term=psychology+myers+12th+edition+study+guide PDF link annotation
    • http://beststudent.space/ias_interview_questions_and_answers_2014ykuz0.pdfIn PDF document text
    • http://nenugatigubom.66ghz.com/cardiopatias_congenitas_libro.pdfIn PDF document text
    • http://vseti.life/spiderwick_chronicles_game_for_androidy2kk8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392191/normal_5fce8b9da0a85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497344/normal_601b1cff825ef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447647/normal_5fecc7db5a4af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376870/normal_6027ace324c15.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tewamenuve.rf.gd/the_dark_science_of_logical_fallacies.pdfIn PDF document text
    • http://mujunuge.rf.gd/joanasworld_leveling_guide_free.pdfIn PDF document text
    • http://gevegure.rf.gd/95092068511.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/bring_me_to_life_trumpet_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/38148611893.pdfIn PDF document text
    • http://lugaderova.epizy.com/game_of_thrones_telltale_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/45309305204.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/safety_signs_worksheets_for_elementary.pdfIn PDF document text
    • http://mebubilatenizef.epizy.com/jefudumojazujujozabavewap.pdfIn PDF document text
    • http://fudewalazakukug.epizy.com/76740619552.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/angry_birds_mod_hack_android_1.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/canon_printer_driver_free_lbp6030.pdfIn PDF document text
    • http://tavupikegoseri.epizy.com/form_arcosanti_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/favejumuripeguwinib.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_off0000bff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFF4 5428 bytes
SHA-256: d3f7b4bc4f12577c00b485c1f80820dc8f2f92dd97b0666ec21c0ebec2f6311b
font_01_sfnt_off0000d24e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD24E 10096 bytes
SHA-256: 5811257d26c0a94ecdcfd9ae5c7b3aea4d021c390b12cca21024bacb6b64a14d

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