Malicious PDF — malware analysis report

Static analysis result for SHA-256 4be49d517243eac4…

MALICIOUS

PDF

79.6 KB Created: 2021-03-19 04:41:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fc15018605923aa8819c68dbb297a42f SHA-1: 5b09a790567687db1cdc23141751089f6cb1c0ea SHA-256: 4be49d517243eac49a9289d84a11dcfd57f869c5e59a3227c87d64dbd52ff40e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to host a phishing page. The document body is heavily obfuscated, but the presence of the external URI and the detection signatures strongly suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://pelibifir.ru/strik?utm_term=briggs+and+stratton+18+hp+twin+carburetor+adjustment
    • http://vabademajelid.iblogger.org/31022459419.pdf
    • https://cdn-cms.f-static.net/uploads/4500444/normal_6010025fd2cf6.pdf
    • https://cdn-cms.f-static.net/uploads/4452157/normal_601d758a6d738.pdf
    • http://darusupula.22web.org/neposenujejagefeme.pdf
    • http://pagixuzipalopa.iblogger.org/sawudepar.pdf
    • http://segolepeponiv.iblogger.org/define_authorized_share_capital.pdf
    • https://cdn-cms.f-static.net/uploads/4405195/normal_6029f40ba81d3.pdf
    • https://cdn-cms.f-static.net/uploads/4424027/normal_603a6eea27bcb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jotogorurekuro/82217788246.pdf
    • https://73b3f487-90f5-41a6-bf44-750372f72efd.filesusr.com/ugd/39e8d0_6cb1121159444f2094032c1c7ad1b37f.pdf?index=true
    • https://uploads.strikinglycdn.com/files/a1f62077-28da-4b9e-8b23-16466c7554ab/how_many_watts_to_run_5000_btu_air_conditioner.pdf
    • https://uploads.strikinglycdn.com/files/947e6361-0446-455e-8d32-a09d006e39c9/uppababy_vista_v2_stroller_in_gregory_blue_melange.pdf
    • http://jilerixam.epizy.com/can_you_solve_my_problems.pdf
    • https://uploads.strikinglycdn.com/files/d78c649b-2a06-48da-b8b0-1400b864d0b2/software_asset_management_interview_questions_and_answers.pdf
    • http://rujunigowe.epizy.com/nelomedenorure.pdf
    • https://s3.amazonaws.com/geradi/casio_protrek_tough_solar_manual.pdf
    • http://molugepunab.epizy.com/banking_and_financial_awareness_free_download.pdf
    • http://zezajezo.epizy.com/zovabuliritinezuxuriz.pdf
    • https://c5e26362-acc3-4c40-9db4-ce0cbd355080.filesusr.com/ugd/681527_936d049b89df4d1dac3b87ea789d7099.pdf?index=true
    • http://wosesulejebus.epizy.com/boyzone_hits_free.pdf
    • https://95043331-d9de-4498-ad98-35b8ac3ee23f.filesusr.com/ugd/5740b2_5ccbb93780f341f587460a31cec65987.pdf?index=true
    • https://6363ce23-9394-4102-a476-7be320345719.filesusr.com/ugd/7c41c1_efa5317fc13e4102a7e3d55e93353c86.pdf?index=true
    • https://s3.amazonaws.com/rilexazejuzovep/34305894450.pdf
    • https://uploads.strikinglycdn.com/files/f2d32421-8aac-4517-9c95-a8ac3bf55c0d/motigisoluziti.pdf
    • https://36fc1fe3-b646-4cc1-b6e9-de51469aea27.filesusr.com/ugd/3eb4bd_7adf563d1e284ababf21be736a93e98b.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7fc.bin
6442daa417f8305b2cae4a3bea47ed7abcd3a5c9ca3111d4250e6bb4cf6d7260		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7FC 6060 bytes
font_01_sfnt_off00010c87.bin
f4ebfad1e627d57a456b82cf6419f7786bd49b92bc91bf322ebe7abea68d2a9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C87 10536 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.