Malicious PDF — malware analysis report

Static analysis result for SHA-256 d216b5581c11dc68…

MALICIOUS

PDF

175.4 KB Created: 2021-01-21 02:49:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 533bd54de449a77e594e6a19d352e884 SHA-1: adefde2412f020e2a6d81981230746b7bf3ae395 SHA-256: d216b5581c11dc6857e1cc5a1de084d04f65d6dc5942e8da40a769ce6b7a8c55
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 0.9990

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://trafficel.ru/123?utm_term=swf+games+download+unblocked PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4371010/normal_5f8a292e00e06.pdfIn PDF document text
    • https://cdn.sqhk.co/dinewemilo/Zcl6ihj/436572373.pdfIn PDF document text
    • https://cdn.sqhk.co/bagadogod/EmGvBha/5003885072.pdfIn PDF document text
    • https://cdn.sqhk.co/duditizonut/ifhdUau/palubasukilokera.pdfIn PDF document text
    • https://bubafoxir.weebly.com/uploads/1/3/0/8/130874260/92a59c27015.pdfIn PDF document text
    • https://rerutafedebe.weebly.com/uploads/1/3/2/8/132815298/zidawibu.pdfIn PDF document text
    • https://cdn.sqhk.co/wemorapi/e6Pwvdv/battery_daddy_case_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/sepetuvab/IGgeqia/airbnb_customer_service_number.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383450/normal_5fa73158affbc.pdfIn PDF document text
    • https://cdn.sqhk.co/zotipimesaza/oiagcMb/cheats_for_gta_5_ps3_guns.pdfIn PDF document text
    • https://cdn.sqhk.co/furaxofir/VLihXv8/green_bay_packers_game_schedule_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/xebibugekux/iaGvgi5/galaxy_quest_miners_not_miners.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://s3.amazonaws.com/bufipevuril/jivogidali.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/relationship_between_honey_badger_and_honeyguide.pdfIn PDF document text
    • https://s3.amazonaws.com/dobikasukavu/kewomuwefovibeb.pdfIn PDF document text
    • http://dufuvebali.rf.gd/grapevine_lake_tx_fishing_report.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_off00026efb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26EFB 5400 bytes
SHA-256: 6667baa1f30d3b184727a4c1fcbd24cd3ef9405cf54bdb767651c57e9cdfff64
font_01_sfnt_off00028157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28157 9612 bytes
SHA-256: 2aeda0b402d7584d4f9328da2b9f6101f9dcceb46eb9421ecb188adef61d19ee
font_02_sfnt_off0002a161.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A161 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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