Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e40bfa1867bc2dc…

MALICIOUS

PDF

78.4 KB Created: 2021-03-30 12:55:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b6b604d78e7056f15aed51ca2b9b04c1 SHA-1: 9ff7aa5e4cc865b941fd990f5cbc5c796ed49721 SHA-256: 8e40bfa1867bc2dcac3ca89d4607a973a6ed07684409346201ef4c3321202bec
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://gimoguvi.ru/aws?utm_term=sketchup+courses+for+interior+designers PDF link annotation
    • http://fisujerekuvij.getenjoyment.net/juwigokiwexe.pdfIn PDF document text
    • https://cdn.sqhk.co/risubibasero/jdu7icp/16492791179.pdfIn PDF document text
    • http://nosatines.mypressonline.com/3742925376.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/bhdicv7/lpg_gas_price_today_up_jharkhand.pdfIn PDF document text
    • http://jokojujut.medianewsonline.com/tebuxoju.pdfIn PDF document text
    • http://jirekakeduvinij.22web.org/halcones_de_venta.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pozimefenud.epizy.com/21341401002.pdfIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/sentencing_guidelines_assault_emergency_worker.pdfIn PDF document text
    • http://resifukizuve.rf.gd/math_questions_and_answers_for_grade_12.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/history_of_memory_studies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a50a152-cf67-4c86-936d-d902795050cf/44377279982.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/wireless_xbox_360_controller_wont_connect_to_pc_adapter_driver.pdfIn PDF document text
    • http://tidizovebimike.epizy.com/basiliscus_basiliscus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80db0dcb-eb57-41ec-9c58-ea49230037c3/bokikafagesipozesejiles.pdfIn PDF document text
    • http://sonunujudul.rf.gd/guide_des_araignes_de_france_et_d_europe.pdfIn PDF document text
    • http://vegubom.atwebpages.com/acyclic_compounds.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/67185209594.pdfIn PDF document text
    • http://dolasuwukino.epizy.com/32003684441.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7e1247a-a248-487a-9ba6-bed060c61c71/sabusebilulivelu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBD 5340 bytes
SHA-256: 970f8261a2780b3fed0236684500acdadb3b8b8b9b8fe55c636bdb67f4226255
font_01_sfnt_off0000f1f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F1 10976 bytes
SHA-256: bbe19b48808c8721051348ba2ec3754e6eee1ded3a6d7b94b6f3588a23feb157
font_02_sfnt_off000116ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116EC 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15

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