Malicious PDF — malware analysis report

Static analysis result for SHA-256 96f356e233db6934…

MALICIOUS

PDF

76.3 KB Created: 2020-11-20 08:58:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 093b9131601faf384b776a9a334011a7 SHA-1: 2b246cc0d7dc9557c10b3637e80182c58a878880 SHA-256: 96f356e233db6934bab0e1ff4892c274cac099492a29133689a6ad87390eda9d
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-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://trafficel.ru/aws?utm_term=ultrasound+guided+thyroid+biopsy+cost PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388283/normal_5fb46108f2e69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460241/normal_5fa5bf9a75727.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420434/normal_5f96d9d2e6206.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393763/normal_5f90f64b19d4e.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/55cebe9e-f873-46f7-9a9b-d3242baa6a54/es_file_manager_apk_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02adfb7b-96f0-4311-a5fb-37cb5273de3f/68746689465.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08e73e28-68ee-4a41-8f51-b3422807eb89/pigosidunebiluwamilobid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb171486-3af6-4634-bec8-f20d31d081cd/99740601595.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cfe5b9e-5fa8-4ce7-b3bd-5a92e2466f53/95441481886.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec9ee392-e0d8-4bc7-86c2-fe16252d21d8/kokonidaxolonoguxopo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56efa96e-a098-4561-9201-412e2896d92c/32709208434.pdfIn PDF document text
    • https://s3.amazonaws.com/banijugoniragom/mississippi_6th_grade_science_pacing_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75717b1b-f57c-48c1-a38e-127a79998ff7/fibipeladepebarurejebe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43afcace-3816-4d9d-8ff2-f53f54dd1484/76293799973.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/pudolokomenaleninoguwot.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF8A 5568 bytes
SHA-256: 95607e95f780198666eca4bd24cf02671c43a4d1f566ff5fcaf22f13e78bdd01
font_01_sfnt_off0000f270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF270 16176 bytes
SHA-256: e387b24d7d7cd0ec732301bfd149c8afe08caf3f39a0a9987430b3575921df5b

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