Malicious PDF — malware analysis report

Static analysis result for SHA-256 76c0772bc8d4a347…

MALICIOUS

PDF

74.6 KB Created: 2021-04-05 17:04:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0b2cda09b4d0ee2a48a243f2e3f06c7e SHA-1: 11b2238b565d34974c0950f111c5b27ead10f2d6 SHA-256: 76c0772bc8d4a347605b147b861b2924ba31122b8c9f5e1fcac568fe07a78aa3
96 Risk Score

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-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/wix?keyword=omron+model+hem-637+manual PDF link annotation
    • http://weinmvc.net/gitufanemusabimibabobv0lqx.pdfIn PDF document text
    • http://pifovabu.getenjoyment.net/wozekel.pdfIn PDF document text
    • http://xepelewatelaziv.getenjoyment.net/casio_g-shock_g-100-1bvmur_manual.pdfIn PDF document text
    • http://sberbank.link/887750281773q033.pdfIn PDF document text
    • http://sbrf.link/wayne_dalton_quantum_3213_keypadzhjle.pdfIn PDF document text
    • http://qunit.space/dd_5e_archfey_patrons0ka3u.pdfIn PDF document text
    • http://tepoparupomo.medianewsonline.com/sodoza.pdfIn PDF document text
    • http://hugertely.xyz/graco_duetsoothe_swing__rocker_canadaly9a4.pdfIn PDF document text
    • http://wowovamofuzo.sportsontheweb.net/axa_travel_insurance_policy.pdfIn PDF document text
    • http://kalidejomepajo.scienceontheweb.net/97105297145.pdfIn PDF document text
    • http://pl50off.info/kebuloperunoff0iy1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://bd15da75-ee01-4ad3-8b22-4778d9929f37.filesusr.com/ugd/1abc29_d6a21d723ff14858aef23d824c185550.pdf?index=trueIn PDF document text
    • https://ec5c17a1-061e-4a2c-a9e6-b3561ba71229.filesusr.com/ugd/299074_60c4dd44c17949f9ad3c0d1733bcbb0f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gulapore/61715027444.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/how_to_repair_hunter_fan_remote.pdfIn PDF document text
    • https://6129906d-bc82-46a7-99f5-71793a58af3c.filesusr.com/ugd/d162e3_5501aa90fc0d4dada3da1f907302609d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/25460471332.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/focus_group_discussion_guide_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/56386515031.pdfIn PDF document text
    • http://judiserod.onlinewebshop.net/auxin_biosynthesis.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_off0000e452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE452 5344 bytes
SHA-256: 266d610521f3082b8f6234a2f75ce3861e15591b4af7214bbf59c3fb8abc0917
font_01_sfnt_off0000f650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF650 11468 bytes
SHA-256: 9393c2494c7fd698d247ca57b5a7114afc692733645a052b16a40e6bb264babe