Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1084369cdf158a7…

MALICIOUS

PDF

79.1 KB Created: 2021-03-08 01:31:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 96feaa9460296043441a23eca6d0e0c0 SHA-1: 9c0baaafb57d85f99cbf9f3e408ad3780e6b4022 SHA-256: b1084369cdf158a7f0686dd1d63d9ef5f6d60724b32a451d2d4fced024467f8a
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://leonvi.ru/strik?utm_term=miniature+dapple+dachshund+puppies+for+sale+in+sc PDF link annotation
    • http://instapriz.website/blockchain_technology_ppt_freekutlw.pdfIn PDF document text
    • https://cdn.sqhk.co/meduxemij/Sjagc04/6739813240.pdfIn PDF document text
    • https://cdn.sqhk.co/woxemumi/ehayicF/lufatazujajavuv.pdfIn PDF document text
    • http://skidki-day.shop/canon_f-1_vs_ae-16rgkk.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/bheKxic/tizodipigoxap.pdfIn PDF document text
    • https://cdn.sqhk.co/xafemepino/ghje0TM/77508651838.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/a8667daf-79ff-4109-8924-80d96cd66b96/67719132831.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c2c57b1-d8d4-41e2-9d6d-4f65bd2cfc11/pujejuvutulujuvifipuzetaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38fde8f7-101e-4300-8035-558d5f76bd0e/81420284753.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81d51e45-00ee-479f-ba9c-df6af50ed25b/42637118685.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df6699b8-ddba-4415-88b2-6684e062e331/how_to_buy_stocks_pre_market_webull.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75bd0d4b-39dc-43a3-bd22-3dfbc8c59ead/godopinafulukugokopetevu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c56703a9-ea2e-4421-bb9b-9819ce3f1061/das_feriados_en_mxico_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93d3d8fc-1cdb-4751-b34f-2023ac811643/how_to_program_a_traxxas_vxl-3s_esc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf090396-f9b6-416d-8b87-efb6b8de2c11/where_can_i_find_the_game_left_right_center.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be81531b-a70b-46c0-86c1-55559d065930/20983300885.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/298a9c8b-cdcc-43e6-8fb6-aaab8138bdfe/53837219727.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4aa56ba5-1aeb-4ee7-a843-a345284856de/78184532248.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90aadacf-d163-4caf-88e5-8baa0ba2b65d/wagner_1700_airless_paint_sprayer_parts.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_off0000eb86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB86 5248 bytes
SHA-256: abe398440e09b7a4e0ff63d67788b50fb28354c4d0aef4e1373e2a94ec90c44e
font_01_sfnt_off0000fd5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5A 2912 bytes
SHA-256: 5d1a0c1d2da4a1506266377b8987668cbab12d6b14ddd55b30b91e7888d51781
font_02_sfnt_off000109a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A2 10760 bytes
SHA-256: 0d3fc6ced1320b33c639cbf3e3a7b29ecdb7dc67728107cc6385eb96137b4ec5

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