Malicious PDF — malware analysis report

Static analysis result for SHA-256 76b4c3199f57770f…

MALICIOUS

PDF

79.1 KB Created: 2021-03-20 01:39:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 0a4bae72be63aff0246e12285e9a0d18 SHA-1: e0da3e07e77fd3f803a0baa52283641fe14ea896 SHA-256: 76b4c3199f57770f81bcb33638f83eea80752794462704c2f5cd247c1c94f05e
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 0.9998

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://ponafet.ru/123?utm_term=wonder+skin+emulator PDF link annotation
    • http://wunuxuvi.sportsontheweb.net/dry_matter_determination.pdfIn PDF document text
    • http://gomigapujasep.sportsontheweb.net/insuficiencia_cardiaca_aguda_tratamiento.pdfIn 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/8ad5c7fc-8da3-4690-8cb1-200035673392/why_is_my_badger_garbage_disposal_leaking.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c927bfa-a90e-4e02-8445-cf8c6c66a1b8/blackstar_core_20_v2_review.pdfIn PDF document text
    • https://s3.amazonaws.com/tugafebip/does_patron_deity_matter_ffxiv.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/avatar_tamil_movie_in_isaimini.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/die_after_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f69ee838-2692-4334-92ee-d9b5bce2482a/scott_pilgrim_free_comic_book_day_story.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41ceff72-a496-434e-a3aa-580202b1fe5f/dell_2007fp_monitor_manual.pdfIn PDF document text
    • http://jafixomedimun.onlinewebshop.net/msi_970_gaming_motherboard_ram_slots.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d580125-879c-4d4e-84d1-d5f5693e84cd/isothermal_and_isentropic_efficiency_of_air_compressors.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b88b048a-f3fa-476a-9ba9-a165936f7921/bebiku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d465b57-c15a-4171-adbf-1be7f7745012/69544312268.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ecbbb09-ad89-4246-b38e-13ebb70b717b/final_fantasy_xv_ps4_pro_vs_xbox_one_x.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/adobe_illustrator_cs6_crack_amtlib.dll.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/bigo_live_pc_app_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/codehs_answers_key_tracy.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/xaforifiboxitupo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3632936c-9cdf-49fc-a63b-d6342b9e3638/9220294446.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_off0000e522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE522 5048 bytes
SHA-256: dce0b5cccd2e80c740daa5013d6054d5019662e37aec50eaa28a36317f13da33
font_01_sfnt_off0000f63b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF63B 5148 bytes
SHA-256: 371d1c4e440ca310c2ba0a78c3b65b739b8f12229cd0565a9f4fd45af09ba353
font_02_sfnt_off000108ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108CE 11252 bytes
SHA-256: 4676500e7186ca0b3bc48a107a4dc77bb0fd3aee005b5b1748556824f04d3e85

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