Malicious PDF — malware analysis report

Static analysis result for SHA-256 218ca1a4fd5a2bd7…

MALICIOUS

PDF

72.6 KB Created: 2021-03-10 14:33:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 837b15731aac82a32683f88cbe430725 SHA-1: 11c6ce57de5678501c8903ca5a9ff7649d1abfc0 SHA-256: 218ca1a4fd5a2bd7c744ae3015d0c1d65f5d182032c89aa8b284c79fd09cce31
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that mimics a search result for a 'jeep service manual pdf grand cherokee', likely intended to trick the user into clicking it. The PDF structure and embedded content suggest it's designed as a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://pelibifir.ru/wix?keyword=jeep+service+manual+pdf+grand+cherokee PDF link annotation
    • https://cdn.sqhk.co/molodomo/giehfgj/62719553853.pdfIn PDF document text
    • http://libumuzu.22web.org/devovaborajakevezarakaveg.pdfIn PDF document text
    • https://cdn.sqhk.co/rivinodati/hagh5id/27541348539.pdfIn PDF document text
    • https://cdn.sqhk.co/devuzemalut/giyTjcE/kemobome.pdfIn PDF document text
    • https://cdn.sqhk.co/dibirolinu/deJgfgc/mutelidi.pdfIn PDF document text
    • https://cdn.sqhk.co/lajefage/KU0vhaZ/sharkbite_codes_2020_october.pdfIn PDF document text
    • https://cdn.sqhk.co/xemajuvinel/9hdgdCt/business_model_canvas_word_template.pdfIn PDF document text
    • https://cdn.sqhk.co/nolovojawek/gDnM5hi/olympics_2016_winners_list_in_marathi_language.pdfIn PDF document text
    • https://cdn.sqhk.co/golemejexeno/bhejghj/vegivenuwevaka.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/73228e59-3d2d-404f-8a2b-82a6ccc8d127/19926281472.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68068080-4de6-4b8b-a164-fc1bcf4bd7af/57132941036.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26eda39f-fa54-42b3-9707-eb42665a4479/28419093465.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62c51b60-cbd6-4593-bdc7-4bb5f958b250/wenibatolavosinepeferove.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e75f7bf-6859-49b4-b2e3-5ad3ef04db4a/ncaa_football_video_game_2021_ps4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/479f6469-ba64-44bd-b77c-8494be249a07/96086899515.pdfIn PDF document text
    • http://damedosa.rf.gd/account_format_excel.pdfIn PDF document text
    • http://numekup.epizy.com/hewlett_packard_laserjet_4050_driver_download.pdfIn PDF document text
    • http://nikavavufuxirel.epizy.com/visiting_card_design_images_hd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a2d41b5-8a10-4792-9159-025724558a9d/radio_shack_pro_668_programming.pdfIn PDF document text
    • http://lunujebof.rf.gd/android_clock_timer_sound.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD233 5484 bytes
SHA-256: 5e94f7c01580cc301be830183d1aa18bc5132d7be7c8bc9fd2a3ed8e250c604c
font_01_sfnt_off0000e4a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4A8 10040 bytes
SHA-256: 68021e2e96bba9e3984a588db68a67985211b1253810d8b5bc61e4185a11fb32
font_02_sfnt_off000106f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106F8 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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