Malicious PDF — malware analysis report

Static analysis result for SHA-256 98de7e08de65c522…

MALICIOUS

PDF

78.8 KB Created: 2021-03-22 13:43:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: bd1b4881e7d83bfb9403a9f77a6b4aed SHA-1: 5fb612b3067c4f68e9668d0ed81cd01a971a166b SHA-256: 98de7e08de65c522319394d998566be89991c5032226b85cdedd92a3318dc6b1
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a suspicious domain, likely as part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://zajinet.ru/strik?utm_term=who+is+the+beast+in+lord+of+flies PDF link annotation
    • https://cdn.sqhk.co/vetukalujir/hfjefCu/borizuzuzikuxebojalagitu.pdfIn PDF document text
    • https://cdn.sqhk.co/vutowogipu/Ehbm9Er/73939866662.pdfIn PDF document text
    • https://cdn.sqhk.co/lofakekaf/Rwgfdig/why_is_my_minecraft_server_not_loading.pdfIn PDF document text
    • http://andyhong.blog/bilowajinubenoniledtnkvt.pdfIn PDF document text
    • https://cdn.sqhk.co/nidaruzada/fidijid/eagles_greatest_hits_volume_1_full_album.pdfIn PDF document text
    • http://fipizilemuwob.medianewsonline.com/82099662059.pdfIn PDF document text
    • https://cdn.sqhk.co/putuziboki/FVlggvG/dragon_raja_scythe_class_release_date_usa.pdfIn PDF document text
    • https://cdn.sqhk.co/daposofoxig/hgjjjhg/96843575197.pdfIn PDF document text
    • https://cdn.sqhk.co/zowajomi/aTEPyhi/13678917771.pdfIn PDF document text
    • http://novofikupeneda.mywebcommunity.org/cooling_tower_design.pdfIn PDF document text
    • http://blacklaser.ru/python_projects_downloadqfku9.pdfIn PDF document text
    • https://cdn.sqhk.co/zixajofazadi/i4jf0p2/xuzovofabidezunorozoweluk.pdfIn PDF document text
    • https://cdn.sqhk.co/xapanularopu/Njhjfgg/15521236661.pdfIn PDF document text
    • https://cdn.sqhk.co/gejixoneku/gia19IG/83583510724.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://uploads.strikinglycdn.com/files/226c349e-6376-4737-ab71-a7e840ad7286/33592676976.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4475b3ce-18a7-47ff-9c58-47854735c67b/the_juliette_society_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b239c10-8339-4a7a-8cd0-707e4a57b713/how_to_change_your_name_on_your_drivers_license_in_washington.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9c45e8c-d3c4-4349-8dd5-958bcb7d2da2/17676621187.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a35007e-26a8-4e33-b419-5a5a3c605875/januz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c757256c-23e0-4601-80d7-a48d546a87d8/judivimatun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9424e1f6-1359-403d-8cdd-b0a14c6cab72/what_countries_flags_are_emojis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/561fe987-b1ac-4778-b966-1f8ef3fa759f/wetijoveditavatexekinob.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_off0000e857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE857 4936 bytes
SHA-256: 00c5214c81cda33f18e43ccbc5ddc91cbedf510738451b9244cd5d4c727ab198
font_01_sfnt_off0000f911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF911 11344 bytes
SHA-256: 82976468cbd813c54b9d357cdc5677b516b1b1c8267116648281d02b3d201174
font_02_sfnt_off00011f68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F68 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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