Malicious PDF — malware analysis report

Static analysis result for SHA-256 551d993aa9f1833d…

MALICIOUS

PDF

66.3 KB Created: 2020-12-15 02:42:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 41f2e85c33578dc0034bf8bddf222880 SHA-1: e6bd74e053243169c9ef492e2b14d54a0a2ee494 SHA-256: 551d993aa9f1833d66b89a7a84301ed5375c8cb54dd23181ba3f1915d394348f
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/wb?keyword=hermes%20evelyne%20size%20guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5fc336ea9bdd4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499002/normal_5fd347f57c3cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404514/normal_5f953f2fa6e29.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416932/normal_5fc388b234e63.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/9dcf6888-0836-4dce-8217-5a0b4e47f227/32342688203.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/may_produce_java._lang._nullpointerexception_android_studio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d03a2489-e5fb-4090-a2b4-481997096619/45175852340.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef1b9fd1-6dff-46ce-80ea-0076817819b0/6709944710.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a2ece10-e326-42de-8f20-34da9508f7be/john_deere_400_backhoe_service_manua.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec88dc59-421b-4b84-8b35-17824fab7ff1/wajev.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc302ce16f6d44b07cc72db/t/5fc5c7a0173fb5383b6bc3a9/1606797226002/tilegafakaza.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/tepotituvojogudinoripebup.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/21953141613.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/remanogete.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22099a16-4bca-497f-b4b6-8a89401da322/vegaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04a2062c-064d-4bf7-8fcf-ff005ac19e24/avery_iron_on_transfer_paper_instruc.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_off0000c7ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7AD 5108 bytes
SHA-256: ffc210c6acb06b0ca917dce57d8e49a83e25317fdff03eae9781645ddac3b5f8
font_01_sfnt_off0000d90d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD90D 10488 bytes
SHA-256: 4a99650fa953daa53640a7aa1ee69094f4feaa733435430b97afae5b13280cdd

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