Malicious PDF — malware analysis report

Static analysis result for SHA-256 909ddfd070d00ac8…

MALICIOUS

PDF

76.4 KB Created: 2020-12-18 03:13:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 5294263e3d5951dcc73226773d83ebe7 SHA-1: e7c93e911f748c1f63dd953bfa849091c9095512 SHA-256: 909ddfd070d00ac81d667a8d2fa16973a51b7c5a7f6aa68d61ff2529d7183433
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'scorch trials chapter summaries' and embeds a URL pointing to 'traffset.ru'. This URL is likely used to deliver a malicious payload or redirect the user to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffset.ru/123?utm_term=scorch+trials+chapter+summaries PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4367005/normal_5fc7dfd163f4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383912/normal_5f91100bad713.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367273/normal_5f9a2de348a84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403804/normal_5fdbe589a8f63.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370057/normal_5fc61879e48c0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460042/normal_5fcd7d22dab11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412387/normal_5fb328c8af850.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393029/normal_5fc1665898fac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389074/normal_5fdbd9eb2b9c0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489844/normal_5fcebd972f23e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374211/normal_5fd34221d69e1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/36844344209.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/255ad740-daaf-44d2-ae5a-e50113a471c9/angelcare_movement_and_sound_monitor_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/android_studio_setup_for_ubuntu.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/buy_brochure_templates_online.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/2d_platform_games_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/636ab182-18e3-4870-9a04-0667cb2890a2/cinema_movie_apk_download.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_off0000ef65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF65 5276 bytes
SHA-256: 5767670b55075920cf6f6ef7b52017d97952ef9f021ea7a3155b687fb1000f65
font_01_sfnt_off00010130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10130 10256 bytes
SHA-256: f32c4e2b7fce8045586744a8c8fb861e892cacf62e47f3fca1540c620cf73bff

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