Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c1f89d49f3bec29…

MALICIOUS

PDF

238.1 KB Created: 2021-05-09 22:35:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 93522a50d49e7f9e1ab23c4ca15290dc SHA-1: d991c9976a0200d8bd82fccad07d1be160831f2a SHA-256: 0c1f89d49f3bec2934ca5fa7d95e7fa242740d5e2a0c05add1f530604bf0f480
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 0.9921

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://kuzutuzo.ru/strik?utm_term=fx+9750gii+factorial PDF link annotation
    • http://zatoboyvibor.fun/literary_criticism_lens_definition9wpgo.pdfIn PDF document text
    • http://smartcreditus.info/86407407819s77vv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467612/normal_603bd6cac1b73.pdfIn PDF document text
    • http://azorocheat1.xyz/system_analysis_and_design_project_proposal_ideasnuj4n.pdfIn PDF document text
    • https://ramowukegi.weebly.com/uploads/1/3/4/5/134508735/tubetaxow_sukefedawizesop_duroluvekuzolav.pdfIn PDF document text
    • http://zahlungsservice-ch.site/new_love_story_movie_2020_hindi_hdxm91f.pdfIn PDF document text
    • http://bandalet.club/wuwuxuwisunigirodopuwovugmjqd.pdfIn PDF document text
    • https://bunojero.weebly.com/uploads/1/3/0/8/130874162/a913da41da.pdfIn PDF document text
    • http://priz24.site/book_review_essay_example88bh3.pdfIn PDF document text
    • https://paxobafu.weebly.com/uploads/1/3/4/6/134697986/426182.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470385/normal_60503a16d3180.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486374/normal_5fde3cfb2e79e.pdfIn PDF document text
    • http://alex-travel.moscow/64844604616onwig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370278/normal_6009bce3d15ed.pdfIn PDF document text
    • https://fenikazegalo.weebly.com/uploads/1/3/1/3/131379965/dilim.pdfIn PDF document text
    • http://revershjtb.site/como_instalar_dreamweavermqav5.pdfIn PDF document text
    • https://gifenatewa.weebly.com/uploads/1/3/4/4/134480542/131812.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408984/normal_60293f5d19a8f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e3e1c2aa-7f41-47b0-8c2f-d823cb48b857.filesusr.com/ugd/7598fa_1e8ca58deeee41e5992e6eae1ecbb69c.pdf?index=trueIn PDF document text
    • https://7a9095e9-4ba3-4ff7-9406-a75d0382ce8a.filesusr.com/ugd/db93e9_1dd7f2c4803747c592ab93a932b9815a.pdf?index=trueIn PDF document text
    • https://f9fc249e-2e6a-4908-9eb0-88005465a50d.filesusr.com/ugd/2530ee_e595d74b9db14a4f974f81d7d831531f.pdf?index=trueIn PDF document text
    • https://2b4b9a66-705d-4e40-a31d-28d4db190467.filesusr.com/ugd/1dbb98_346d2c4ce2b540d0ae5e2615b688b0e7.pdf?index=trueIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031c15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C15 14796 bytes
SHA-256: 84f0d9e46d217d483c79be411fd6805543827283519bd8b7fff34011e33b3c30
font_01_sfnt_off00034b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34B06 5396 bytes
SHA-256: 1bfa0a610aed449244e1ba7ceb832ded2eba85a7f55a68e4edb285c66903d5f3
font_02_sfnt_off00035d8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35D8F 17188 bytes
SHA-256: 2a2cc3c6cac1838c4a3df1c45b327c43b3e33a2b561fe794e901396bef2b7b34
font_03_sfnt_off0003925d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3925D 16256 bytes
SHA-256: e5d7e86065bbc8d9fce251990f8fe07060b1577aece17ae3d17e7c2bfd9f5d7e

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