Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c58df19638c63d0…

MALICIOUS

PDF

78.0 KB Created: 2021-03-20 12:53:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 6b505bbfe2728b6022c1f6621e51f280 SHA-1: 706a033d2dc39f5ca4dc6f3dc6bda5dc0b39ef03 SHA-256: 9c58df19638c63d0c0006a72f339a248c75cc2d51e7aa3847a044e91c8bd2de5
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 0.9997

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://xajibur.ru/strik?utm_term=romeo+juliet+movie+songs+download PDF link annotation
    • https://cdn.sqhk.co/sirejeforox/MGghjiD/24162467974.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500669/normal_603a02c588e96.pdfIn PDF document text
    • https://cdn.sqhk.co/wijelukifap/gge8ijC/monkey_go_happy_ninja_hunt_2_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/sumefixes/vgdjixS/81706730463.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420924/normal_6054c01449191.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383308/normal_5fdf3c95275d9.pdfIn PDF document text
    • https://cdn.sqhk.co/mogizilo/cWPWRgi/nhl_hockey_playoffs_schedule.pdfIn PDF document text
    • https://cdn.sqhk.co/pepupiribojo/5ifp2hi/42954957721.pdfIn PDF document text
    • https://cdn.sqhk.co/letaziseb/jczlQgj/bugsnax_review_ign.pdfIn PDF document text
    • https://cdn.sqhk.co/regisanozoxo/ohgUhiw/octopus_vs_squid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451750/normal_601547dacaf7b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452381/normal_5ff639500e88c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372673/normal_6050768d6af80.pdfIn PDF document text
    • https://cdn.sqhk.co/lesasafo/hfUAgfC/dungeon_keeper_3_war_for_the_overworld_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378382/normal_60446ae165d30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382958/normal_6040bf6116727.pdfIn PDF document text
    • https://cdn.sqhk.co/dotusabu/jzwjj9S/88993843681.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456667/normal_604e70827680a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366388/normal_5ffb14965b7e2.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/53befb6a-6f85-4db9-b0d1-0cdf368582bd/piterakorimezunixu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a232169-e9c5-4de0-89d4-be23c9e4b7c0/what_is_the_standard_size_of_a_football_field.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_off0000f4c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C4 5284 bytes
SHA-256: a4fb0be3339c7af4c5e9f75bb6ec87b495046aeda2df7bb9330354c56cd1ee83
font_01_sfnt_off000106c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106C8 10628 bytes
SHA-256: 627d55a9ac389957e4a1ecf0fa0db4da8e59cfe90178179f6fc0627a10fc98c6

Open this report in the interactive analyzer, or submit your own file for analysis.