Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bbf6b502afd54a6…

MALICIOUS

PDF

106.2 KB Created: 2021-05-12 00:33:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3094f6b991bddc8eef77c792fb7841f5 SHA-1: 19943955f57cc9507c45abfe5c30b65fba65ce45 SHA-256: 0bbf6b502afd54a631e5e45d36d757e04105b3b5030204b1f54e6b065014d271
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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://bologen.ru/strik?utm_term=the+lottery+shirley+jackson+worksheet+pdf PDF link annotation
    • https://cdn.sqhk.co/worenora/Wif5jan/suzesanudatedip.pdfIn PDF document text
    • http://predouche.xyz/no_call_to_action_button_on_facebook_page714k3.pdfIn PDF document text
    • http://comp-arenda.site/zajejenatufiridugudajermp2e.pdfIn PDF document text
    • http://cethq.xyz/99063768219lngoi.pdfIn PDF document text
    • http://salebox.shop/asterisk_cdr_reports_free748e0.pdfIn PDF document text
    • https://cdn.sqhk.co/kobadaxo/xjdgcEr/remember_the_milk_app_for_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/bikulatitaxe/jhO7gSm/44151999592.pdfIn PDF document text
    • http://vaxodomafase.22web.org/90365967769.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/cjaJhgs/download_motogp_racing_2019_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/rufebumu/khftIhe/lucky_time_win_rewards_every_day.pdfIn PDF document text
    • http://googsnat.space/rcog_green_top_guidelines_anti_d6xfms.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/6ddb0c93-c816-45b3-ae21-b106be2c06a4/what_is_general_data_protection_regulation_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/fire_employee_letter_template.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/tozubagirutelisuxo.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/83375754539.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/72263684308.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cc0a996-ea5d-4f7e-a9c5-ebd2b902763e/56932774880.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f929685-2380-4d65-8b61-5b737c43d428/92633077177.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/how_to_turn_photo_into_avatar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d076e8f-96a0-46d6-84f5-fed0052e5346/dewalt_dw402_type_6_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/kyocera_1120_mfp_toner_refill_powder.pdfIn PDF document text
    • http://baledur.epizy.com/49056967409.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/caustic_3_unlock_key_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57481fbd-b593-4c4f-a4ee-5a38415a909e/83576017824.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_off0001534d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1534D 5312 bytes
SHA-256: 1aa2d1a85c034c2af1329bc5b790e9008617bb434c183b15b1c566246aab356c
font_01_sfnt_off00016573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16573 11100 bytes
SHA-256: 2841f28b02e259a3c34ec9bf6f8a7c9495fc89e3e96e55f27b56e59852c954a6
font_02_sfnt_off00018b46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18B46 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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