Malicious PDF — malware analysis report

Static analysis result for SHA-256 32f184e748f2a9e5…

MALICIOUS

PDF

68.7 KB Created: 2021-03-14 14:07:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00519d50283c260ab4fcd02ba5aab4b2 SHA-1: 79d124aeb97dfb14a621c3417fd75345e8f86b47 SHA-256: 32f184e748f2a9e51a0bdd504ce1adf1c14e459797180641aa2593571a7d7ad8
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for credential harvesting or further payload delivery.

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://fokemale.ru/wix?keyword=cladogram+worksheet+kangaroo+lamprey
    • https://static.s123-cdn-static.com/uploads/4471455/normal_5fec032093510.pdf
    • https://cdn.sqhk.co/goganededem/cbZsssL/flight_pilot_simulator_3d_free_download.pdf
    • http://pevewoxoxup.scienceontheweb.net/government_of_canada_calendar_2020.pdf
    • http://dojemop.mywebcommunity.org/what_charger_does_ipod_nano_use.pdf
    • https://cdn.sqhk.co/mofisozulud/eDGjcib/mipaponiw.pdf
    • https://cdn-cms.f-static.net/uploads/4370288/normal_5fd82dda38b6b.pdf
    • http://lozipazom.sportsontheweb.net/al_bayan_vol_1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/gazivemon/49877648928.pdf
    • https://cb38ef3f-1f2c-4622-8962-dca261660167.filesusr.com/ugd/3ae201_c3c213a3774040528dd6dd6e61cb27ed.pdf?index=true
    • https://562c2315-396f-49d1-9e45-1236e049cb13.filesusr.com/ugd/ec0012_74874ab19e4f475a91aa70b66ee6fb6f.pdf?index=true
    • https://041aa876-b65b-432c-96c0-58c8b295a4e4.filesusr.com/ugd/90d19e_2c352042163c445ea402de14102c43a3.pdf?index=true
    • https://s3.amazonaws.com/zafaronivaj/pronouns_and_antecedents_worksheets_for_3rd_grade.pdf
    • http://lojubefogugiku.onlinewebshop.net/podokepokunanub.pdf
    • https://s3.amazonaws.com/rutufokedizon/ankeny_police_department_annual_report.pdf
    • https://3df06c22-1e8a-4082-8cc2-a0fdc0609706.filesusr.com/ugd/d86e81_5d594e1045254dbd98744ebf0c39780e.pdf?index=true
    • https://s3.amazonaws.com/bugutaj/in4mo_task_reporter.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d122.bin
63261ec35279d4bf25b4aaa8ed14cb3ba1e3c17dc32cfc04278bfea1841beab1
pdf-font-stream PDF embedded font (sfnt) at offset 0xD122 5536 bytes
font_01_sfnt_off0000e3e0.bin
8ea99db775c714a140ab308ab5cf290598dd6a6c3642a7ef91e9bea00d3f8a36
pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E0 10088 bytes