Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cfde8ba4c6afe80…

MALICIOUS

PDF

70.2 KB Created: 2020-12-02 11:41:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 68b208b7515d7ac8eea6d73069311799 SHA-1: d9b2ed5d531a7f083c754eb4d949db4d4d2061dd SHA-256: 0cfde8ba4c6afe803d67f1047cd4fe3803b9e11409065fd458e7711a00125139
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://trafffe.ru/123?utm_term=beck+oliver+and+jade+west PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4449774/normal_5fc72cd1656c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365656/normal_5f87024153604.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372963/normal_5f984e1e4d8f7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489429/normal_5fc732de407d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445555/normal_5fbd9d92a89f3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcefc379c08c7f2b9d8791/1606217669299/michael_levin_why_race_matters.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf52b1af5bf52c326a17a/1606219052006/classification_and_taxonomy_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/morning_prayer_before_work.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3636b17e7202640fa01ec/t/5fc6c4a756cd4459b3a2ac98/1606861992131/border_patrol_news_today.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4b2c145a8629dca731ad/1606372140729/35548666947.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e9d1a91-fd2a-4079-bc44-740d3da249e2/55097727975.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a180f4b9-fcb1-419e-9224-4afb600a721a/51703398687.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d135bf71053ccb0fc630/t/5fc354e4f3de5e49b5cea3e0/1606636779515/how_to_hack_asphalt_8_with_game_guardian.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_off0000d3ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3AD 5276 bytes
SHA-256: ba6a54154e2f276945e2a77dbd68ac9bc0ed5945d770ce5c39a2125026df96b6
font_01_sfnt_off0000e5c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C8 10996 bytes
SHA-256: 8914e345b58f58122828814c23a5778d51e7e701e01c4957a3131387c110e358

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