Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd7e8063aadbc2d9…

MALICIOUS

PDF

427.1 KB Created: 2021-03-18 21:38:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 50e203633646fce59c2fb2e46184e619 SHA-1: b5b063295045ea58c6a1e2d92151dc7dc7ef902f SHA-256: fd7e8063aadbc2d962017e8e0eb2dd5be47855098725291ecf6e6a04673dddd0
144 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, indicating a phishing or trojan threat. Heuristics indicate the document uses urgency lures and suggests a password-protected archive handoff, common tactics for disguising malicious content. The embedded URL points to a suspicious domain, likely serving as a download source for a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6224

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://resalured.ru/wix?keyword=repelis+tv+descargar PDF link annotation
    • https://cdn.sqhk.co/fuxiwimemo/GVibNfG/jofumum.pdfIn PDF document text
    • https://cdn.sqhk.co/jenetuwuda/haKyhhx/origami_box_easy_instructions.pdfIn PDF document text
    • http://vanesifonemume.22web.org/76315887314.pdfIn PDF document text
    • http://vufulilaririvu.iblogger.org/what_is_a_winchester_model_94ae.pdfIn PDF document text
    • https://cdn.sqhk.co/nomuzali/hfidzNO/how_to_get_online_girlfriend_back_fast.pdfIn PDF document text
    • https://cdn.sqhk.co/tixukiko/ohg1Dja/brick_breaker_hero_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/pinepopowig/iji5O4V/56029370472.pdfIn PDF document text
    • https://cdn.sqhk.co/gofuzurafano/jJsqwWa/9113494992.pdfIn PDF document text
    • https://cdn.sqhk.co/fowipovoji/fZFhbgo/backflip_madness_mod_apk_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/sipebesoxu/gjpcJjg/tozogivubimafoduvoge.pdfIn PDF document text
    • https://cdn.sqhk.co/fudikeraz/ygfSugf/avatar_korra_season_5.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/003074a2-ee94-4377-8820-d254240a51e6/why_is_my_bluetooth_mouse_not_working_on_ipad.pdfIn PDF document text
    • http://pigozezidum.rf.gd/cmcsa_earning_report_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39b67f98-55f6-45be-973c-f109eafc4525/lurutikekorov.pdfIn PDF document text
    • https://s3.amazonaws.com/mesotodimus/billionaire_song_honey_singh_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e21ce2eb-b4cd-47ec-b6b9-6c12ad01cae9/windows_automated_installation_kit_aik_supplement_for_windows_7_sp1.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/fezirawilaxed.pdfIn PDF document text
    • http://nodefojabotozij.rf.gd/gilixujobapabezaxuman.pdfIn PDF document text
    • http://tofodubigar.epizy.com/nicomachean_ethics_book_1_chapter_7_summary.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005e589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E589 6440 bytes
SHA-256: a606a6dede3b99472d2ac97761204782646b5f75106b48d1abccbe9a99ca9a4c
font_01_sfnt_off0005f54c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F54C 9248 bytes
SHA-256: 62e979793a811160a4c98d268473c28f544e500d42997d4a9ca01f89a012e3bc
font_02_sfnt_off0006148e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6148E 1720 bytes
SHA-256: c14a298d737454491d303db2f95c64c793bf252df8a29a1be29a0e7bb0fca5f2
font_03_sfnt_off00061d00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D00 5308 bytes
SHA-256: 0ddd4f337341b9a1fca73a996bdad2da5f043d427518cff2180d1d32759c536a
font_04_sfnt_off00062f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F27 25252 bytes
SHA-256: 97ff9a12c655c561ccb335c13f86da615a5ef0a88140525f5c9d2edcb5941c57
font_05_sfnt_off000674dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674DD 16304 bytes
SHA-256: 3fcd701f342e7885acceb4ecdc6df528432ad12f9f7019569a2ba4adb4d113aa
font_06_sfnt_off00068a9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A9D 6144 bytes
SHA-256: 3052b77391ebdc4b5dc3335c98b99fc5caea795b7482060a0a55dbd2f426e6fc