Malicious PDF — malware analysis report

Static analysis result for SHA-256 b22c0e1595922028…

MALICIOUS

PDF

74.2 KB Created: 2020-12-31 11:08:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0638c4674d47bb870f49bdf4ba3296e7 SHA-1: f92d31f16c94f515ea7133e784ced988e643cdd8 SHA-256: b22c0e15959220286d4cbe3a8fc6ff2619e0855655899463fe75c155c7860baa
104 Risk Score

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. It uses an urgency-based lure. 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 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffset.ru/strik?utm_term=freeze+dryer+for+sale+amazon PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4406208/normal_5fb2e7f38a504.pdfIn PDF document text
    • https://cdn.sqhk.co/tebolugex/iEjg9gf/download_game_call_of_duty_mobile_garena_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/sirazisiluz/Aqhehjk/39506518286.pdfIn PDF document text
    • https://cdn.sqhk.co/mugapowejog/gijgdgd/93545314081.pdfIn PDF document text
    • https://cdn.sqhk.co/nenuguvan/jiciiiG/ticket_to_ride_online_gameplay.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382789/normal_5fb41531948c2.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/b984e926-d174-493c-9653-db4401c6cde9/zoroliranilari.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baab7660-d249-430a-80c9-9474f8738612/7690166845.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/573d2772-8c58-4eed-961b-b6e65e13b731/tamuzekoruji.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/golokorikebofawemi.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/licence_form_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/290f99d2-3de3-430c-b118-23380603f71a/41475938367.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43e48f59-e5f2-4172-9b9b-39b0ea4618a2/94948237784.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE455 5160 bytes
SHA-256: 3cba6a5d499c3dda8e0a48ce048c03cbb8038b11cc0ca1c507623f26403f4da9
font_01_sfnt_off0000f5e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E5 11192 bytes
SHA-256: 19d42d361c010548491ee8176e314edddd02482cc3d90cd3d9fb832d3a4a678d