Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e11e9cf671ba2e2…

MALICIOUS

PDF

73.5 KB Created: 2020-12-11 21:56:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 93e4613319e5c927f87b0ba648cc0592 SHA-1: 6e054bd0fd19d88793ad9546f31df5b6615c6791 SHA-256: 8e11e9cf671ba2e2f3d8d0371673177a20483070c4db72c32ba69f07bb32bd1e
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://trafftec.ru/123?utm_term=it%2527s+the+journey+not+the+destination+poem PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4483103/normal_5fcb1ef78ff0b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413457/normal_5fc582fce70ef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413585/normal_5fcfb458bcdc6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478146/normal_5fc4a68f18d00.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453890/normal_5fcfaf8128075.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406812/normal_5faa2e4f461d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444092/normal_5faa6ad6cf323.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406466/normal_5f9a231cc9a97.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/votubukaxogilix/csf_full_form_bengali.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4be05147b14804296b79/1606372321288/sotopageweminopugew.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc71ec6e2afa34b64ad0df3/t/5fcf1f98ba7003536ea4a797/1607409561366/money_machine_2020_trailer.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5559ebd14ff0dd2ba110b/t/5fcb6a13b495bd202820e68a/1607166485017/jikedofiwugujabiw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5b7772e34347c70655c7e/t/5fccaf767ae85b53b28e02bd/1607249787698/wanipubaxonuwamerove.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_off0000e287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE287 5316 bytes
SHA-256: fbedf8a31149a33db227102463dca4cc40ee5a0bdfb2c0ac67b8366ee424c298
font_01_sfnt_off0000f482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF482 10832 bytes
SHA-256: 8f70b383b55784e94b00a7e2ee9bf0f15a37eda41c0ad12631db73a5b546ffa9

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