Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bb347f79af584fc…

MALICIOUS

PDF

78.0 KB Created: 2021-01-04 20:32:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: eb85772d2b01069b7cf1e2f7af6c4ba9 SHA-1: f2b773eebf24071e5db9fc1743b8d3f474e07137 SHA-256: 6bb347f79af584fc7918c905a904278756209bd3b45350a26b5c552a187f2257
96 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. 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://traffking.ru/123?utm_term=libro+de+los+sue%25C3%25B1os+y+numeros+san+cono PDF link annotation
    • https://firupewuvub.weebly.com/uploads/1/3/4/3/134330425/wakozanire-duruvu-sokavufeneliv.pdfIn PDF document text
    • https://cdn.sqhk.co/bibilofefi/Itdhiib/benovodediwonusu.pdfIn PDF document text
    • https://cdn.sqhk.co/tememukafosu/jcgjjcw/xudogorikubexipenafevew.pdfIn PDF document text
    • https://simisasokudu.weebly.com/uploads/1/3/4/2/134235492/89bd79f8f3b4.pdfIn PDF document text
    • https://cdn.sqhk.co/girewobo/N0gcdyz/princess_makeover_games_free_online.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/M5iicag/47410646217.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/b5190502-32b8-46f3-88b4-55db712191f6/xitewoxebi.pdfIn PDF document text
    • https://s3.amazonaws.com/bejideba/assassin_s_creed_odyssey_riddle_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38de0f2e-f0e9-4a2e-ac1a-9fa20dc7313e/download_gmail_icon_for_desktop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0e4994d-2ffb-4421-9a30-b7518145bf2e/early_bronco_dash_wiring_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6326e8a-96c6-4532-85aa-a7386be86616/kirujikoguj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/891f3753-6149-47f8-951c-22328027dc9b/67759376408.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/pulawonenuvarudod.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_off0000ef4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF4E 5480 bytes
SHA-256: b8a3ce735b07a18ffcda9035fda3ae0cb7b33bf14089390044d2dc8ef8798348
font_01_sfnt_off0001019c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1019C 12160 bytes
SHA-256: 16781d26382a2bfdff26e9fd11726ae17bdcc70d221fdef46378262b91f5d236