Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10c618241b4f986…

MALICIOUS

PDF

64.0 KB Created: 2020-11-09 19:49:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: f79ac94e2521914d7535b65102f6ae69 SHA-1: dab827ca506e99e6029dde86d5b1d13f4a8901b2 SHA-256: e10c618241b4f986141485164f31a8d5db7a03349887cd95fa041f6562b28ecc
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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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?keyword=unblocked+age+of+war+1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4412158/normal_5f99363638c95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488322/normal_5fa97896cdf8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370066/normal_5fa193071cd75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366335/normal_5fa2efc11e2bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373259/normal_5f9239657cf60.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/jesidofefe/58721672491.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09babddc-a5ce-4111-a767-2cf1f8f68bdb/shadowgun_deadzone_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3dbefb8-ad54-43fd-bbfa-5e4a9154627a/satin_ball_gown_wedding_dress.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59f18e28-c445-4e3d-9bc0-3fe17839745c/46169639447.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0be3db78-58ff-4d15-bc39-f3fa9ae2bde4/gisejezaxakaxiretibimu.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/epidemiologia_y_salud_publica.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fc79a1f-1e2f-443b-8709-bcdec28a277c/traje_tipico_de_el_salvador_historia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ec705c4-c6fd-4088-8a19-fa707c6755c4/zisumogodakisimekazuzabu.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/cheap_video_cameras_walmart.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_off0000bc5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC5F 5348 bytes
SHA-256: e66e56f3feed2ca890f90f5e1c53e2418ab859b47cd178c88b752dba0f1a0012
font_01_sfnt_off0000cec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEC2 10812 bytes
SHA-256: 3739b0a51f7ddb462b24fc210b0d22605427b6ba77963106296388dacaf03a9b

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