Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e926b4f2e2046a6…

MALICIOUS

PDF

84.5 KB Created: 2021-04-22 03:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d2e04a188df335f33bc33966bb7dee0 SHA-1: abfd49c33d7f8c748560d6e75d858a9a76533a3d SHA-256: 3e926b4f2e2046a6bcb217ff3e34d68cb5948080d44532e2f6aed582fcd60765
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 intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'What God plan for marriage', aiming to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://zajinet.ru/strik?utm_term=what+god+plan+for+marriage
    • http://znohist.site/mere_christianity_book_3_chapter_7_quizletbmjrb.pdf
    • http://rusherx.studio/why_does_my_lg_tv_have_no_powerjvb18.pdf
    • http://cabinetshub.xyz/89047426774p5dlp.pdf
    • http://dkblogin-de.best/what_are_good_girl_names_that_start_with_m460ue.pdf
    • http://hyipinvest.site/kerosene_heater_repair_service7e3b1.pdf
    • http://autoupgrade.website/chess_genius_for_pc_freejvisy.pdf
    • http://insurancesouk.com/sarovoxasodugelage5ro8r.pdf
    • http://kieverts.xyz/nobozoxezesedega6396t.pdf
    • http://aydym.club/thermaltake_core_v1_snow_edition_reviewt1nhg.pdf
    • http://znalomstvavip.site/70919177756esicf.pdf
    • http://rivalo130.com/how_to_operate_kitchenaid_food_processor_attachment4mpzq.pdf
    • http://mosdendy.store/cable_modem_termination_systemga1ia.pdf
    • http://rankingcoach-apps.com/bca_assessment_report2nhb7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/250243c0-7f2b-46ec-8d43-1998f1d839f8/vadotidutomadobaret.pdf
    • https://s3.amazonaws.com/tezude/50461281616.pdf
    • https://s3.amazonaws.com/tolivajupeku/best_dual_sensor_battery_operated_smoke_alarm.pdf
    • https://s3.amazonaws.com/muvojugejoxip/56695661356.pdf
    • https://s3.amazonaws.com/fogibi/apa_format_case_study_example.pdf
    • https://uploads.strikinglycdn.com/files/72512ef9-9625-48ab-ba7a-8ee61fe351ae/62144348172.pdf
    • https://uploads.strikinglycdn.com/files/1f5420a7-9911-49c5-9e0e-f196acd8aa22/how_to_load_a_craftsman_electric_staple_gun.pdf
    • https://s3.amazonaws.com/serogajugomiji/tanowitafamo.pdf
    • https://s3.amazonaws.com/zuvovoxigumuz/famepati.pdf
    • https://s3.amazonaws.com/sobaketemu/ms_drivers_license_test_book.pdf
    • https://uploads.strikinglycdn.com/files/8526b18e-923e-4705-88da-be8d59a8df49/lonefawenebudapaw.pdf
    • https://uploads.strikinglycdn.com/files/acfcfb6d-304c-4178-a3d6-7036446ad523/goguwufevibevomudomili.pdf
    • https://s3.amazonaws.com/wizakokowe/32150478165.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f631.bin
745efa5bfece97c8346da6f0a90e38f83729427fabb2d53794288fac85916060		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF631 5288 bytes
font_01_sfnt_off00010819.bin
8ea73f771b7f53788ecc342f0fc026c3bcd060430043f6ce7cd5f1183d425f41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10819 11240 bytes
font_02_sfnt_off00012e8c.bin
531e37f64a2e7dc3bfb257675d9e6c644c7b1597f33ba9a969cd005a7ed65660		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12E8C 16312 bytes

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