Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdad265051c49da8…

MALICIOUS

PDF

83.8 KB Created: 2021-04-17 13:29:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ebb881d0c25f80ac628fbbf003971d90 SHA-1: aafb987597a02ee6a34a1ed10e62f4d85fa6ad03 SHA-256: bdad265051c49da8096585a2515bebe8570ceecb524c9b330268892c3b8a168b
96 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with one prominent URL pointing to a suspicious domain that appears to be a phishing lure for an audiobook. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high likelihood of malicious intent. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

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://botokaw.ru/strik?utm_term=como+crear+abundancia+deepak+chopra+audiolibro
    • https://rekasefuwe.weebly.com/uploads/1/3/0/9/130969231/guzozekukokaseg-timitijasow.pdf
    • https://static.s123-cdn-static.com/uploads/4443812/normal_5fc74654d5dbd.pdf
    • http://vibolofisef.mywebcommunity.org/wijakasasekezubakobedode.pdf
    • https://cdn.sqhk.co/gudijupimeb/dCZbKja/general_knowledge_quiz_with_answers_multiple_choice.pdf
    • https://cdn-cms.f-static.net/uploads/4413850/normal_603598161171d.pdf
    • https://falojabuvo.weebly.com/uploads/1/3/4/7/134774067/2ed6d.pdf
    • https://cdn-cms.f-static.net/uploads/4485296/normal_6049ab43ce741.pdf
    • http://naturelofo.mypressonline.com/naming_functional_groups_practice.pdf
    • https://cdn.sqhk.co/vavegewumur/f6iaHhi/sugukoxunerolu.pdf
    • https://cdn.sqhk.co/pukikojat/cqRhjhf/74550689929.pdf
    • http://lapiwudoxavov.scienceontheweb.net/614996063.pdf
    • http://xoziduso.mypressonline.com/54156797040.pdf
    • https://mokadipubozot.weebly.com/uploads/1/3/2/3/132303064/tibuzul.pdf
    • https://vojonabof.weebly.com/uploads/1/3/1/3/131383251/pazoj_nojavitatodofeb_kufokazujozaja.pdf
    • http://nozumupi.medianewsonline.com/tebotemuwuxemomiwovax.pdf
    • https://lujovimujesami.weebly.com/uploads/1/3/4/0/134019161/7944f38d5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/dukajevo/2131239379.pdf
    • http://kesupipipiret.onlinewebshop.net/21239845132.pdf
    • https://s3.amazonaws.com/jakujakula/presentation_folder_template_free.pdf
    • https://s3.amazonaws.com/goneduzum/towixisimawuvudewizolomo.pdf
    • http://xowobovu.myartsonline.com/sql_server_management_studio_manual.pdf
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f198.bin
0c7b35b0169344902aa6bcd0b46f5bf9dc4f71bfe1e753ab25bcb957a5a194ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF198 2856 bytes
font_01_sfnt_off0000fbca.bin
43859bd250db2827d83757efc2663840d5595081806805d2d8790ed50aa08900		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBCA 5244 bytes
font_02_sfnt_off00010d5f.bin
e6550ee734845d35180df21032b9f69a5e0a1224e0132e83b766e17bc8275b60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D5F 1752 bytes
font_03_sfnt_off0001160a.bin
2d48845d190535642612dcb48e155e0dd1b4e91d4c0f8108f8c6c978c131a9ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1160A 12512 bytes

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