Malicious PDF — malware analysis report

Static analysis result for SHA-256 a60cfbaa13a1a727…

MALICIOUS

PDF

82.0 KB Created: 2021-03-30 07:26:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e1dca5a74b9d97ad8533c433a6ae4f79 SHA-1: 9456af2b7d4b1b19f4e821a89275e2e1e58cd53d SHA-256: a60cfbaa13a1a727a9de3183bf650c826eb3b89687d6c6fa0e55f3f8e17dce1b
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 0.9991

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://kuzutuzo.ru/strik?utm_term=dymo+labelwriter+450+turbo+not+showing+up+as+a+printer PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4453719/normal_60078bab9f13e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373782/normal_5fe6b9479ef3b.pdfIn PDF document text
    • https://cdn.sqhk.co/gadukupuwe/ijiU9XE/super_nes_emulator_android.pdfIn PDF document text
    • https://cdn.sqhk.co/rijomawonuj/hhz9jiE/ferowosorokezamivujiguw.pdfIn PDF document text
    • https://cdn.sqhk.co/legikowe/yhb9pIT/falikavox.pdfIn PDF document text
    • https://cdn.sqhk.co/gajerivab/W0upULt/magic_rampage_secret_areas_1-_6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464735/normal_5fc6ad71346af.pdfIn PDF document text
    • https://cdn.sqhk.co/lajefage/JMhji6x/maxpreps_football_rankings_2020_georgia.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kaxukok/dreambox_control_center_2._9.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/27098094748.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b62d00fd-20a8-4f59-9353-e4b05a4f4699/hakko_fx_951_manual_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/toniseligiwuzux/lodidixawojovoparipe.pdfIn PDF document text
    • https://s3.amazonaws.com/fekife/how_to_set_my_armitron_all_sport_watch.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/jididedifolufafireduwekof.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/serta_motion_essentials_3_remote_sync.pdfIn PDF document text
    • https://s3.amazonaws.com/wetevali/nozilerukuvuzuvu.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/apqp_process_flow_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/how_long_does_it_take_to_actually_love_someone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21217394-7668-4f53-b8c5-2bf28ce1df44/vurolezepul.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/watogurera.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/community_helpers_worksheet_for_grade_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b5f4264-743f-4a17-90f3-f2007fc2bc74/fundamentals_of_physics_by_halliday_resnick_and_walker_10th_edition_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/european_society_of_cardiology_guidelines_nstemi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e79b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE79B 5920 bytes
SHA-256: 6bd38ede6ba6e7e9ec73fcdb8ccc9dbf47b2662a40449a26e607ced516bcb6c3
font_01_sfnt_off0000fbbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBBB 11520 bytes
SHA-256: bcf076044651b2327156b5f8d1a7cdbbb26d40805588ffc8072cb16d51763dd4
font_02_sfnt_off000122ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122EC 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd

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