Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d82523d5213fdb7…

MALICIOUS

PDF

74.6 KB Created: 2021-06-05 06:03:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1e75c27441dc6fb3adb529e524b2c36a SHA-1: 73fd56f12cfcc556249557f31df4b25ec0b0bb51 SHA-256: 8d82523d5213fdb7aaa0688b7da0ac16abb05cdde3269309fb5d004070d358e7
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 0.9995

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://catamma.ru/pbw?utm_term=farmington+nh+police+log+2020 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4422640/normal_600771b34e901.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379971/normal_5fe2cf61893fb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449599/normal_5ff02c63001c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402717/normal_604749e98d223.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456985/normal_603258213db96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372100/normal_604df19c6f776.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366961/normal_5fcbff96d5e54.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421472/normal_5ff910bb971b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496580/normal_60167046ae6e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379839/normal_605239bb84ffd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459941/normal_6054c86fe3d10.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/c75b5087-ddb5-4c77-bdf3-ecb84a6eb5a1/what_are_the_3_stages_of_a_heros_journey.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4537a122-ced2-4fa7-be1d-175f9b987f3e/clue_jr_missing_cake_score_sheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2beb0f28-6de4-41ab-90e9-48e7b87f2fbd/55176855999.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecb251aa-42a2-4c0c-85ea-d4f65b821341/nelipitenigawevezuten.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12046d05-fccf-43b7-a4f7-36c05fefa552/83664655121.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ba0f608-3a12-4c3f-a480-cca2b4e57420/hp_deskjet_2545_not_printing_color.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b648618-758d-41ba-888b-84c97d271eb2/xosijobijotedurajitapata.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e00d6592-525e-4a29-aeff-1c37460bbc07/samsung_bd-h6500_wireless_problems.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/319be2e3-67f5-442c-b8e9-7b0563bbba97/hp_colour_laserjet_cp4525_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e83c0933-d664-4bb4-b0f1-3d3b7cdc5f7f/hp_scanjet_5590_adapter_price.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/730aff6f-4a87-4d90-ad6f-dc14f5308c7b/33617228571.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_off0000e23e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE23E 5400 bytes
SHA-256: 53677d3395f9966f1fd75e25c217ce7689835567b084e88a8c8fe95b552679f2
font_01_sfnt_off0000f478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF478 11324 bytes
SHA-256: eb588a6c28edc2416caa22a3e831e711a1c640d8a00d3676cc7003b45a18410c

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