Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fa607a22f35bc43…

MALICIOUS

PDF

92.1 KB Created: 2020-12-09 08:51:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: d1e9fc998f488ba195b44e375dea5cc3 SHA-1: d8876f00f815aa2b65af13697935b2a6e8dc79e3 SHA-256: 0fa607a22f35bc43763959538dd85058556962acceeaa244c76c82168bdf77ad
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://trafffi.ru/strik?utm_term=test+assured+water+testing+kit+reviews PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426823/normal_5f99a3f6142af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380867/normal_5f95452066c32.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419820/normal_5fd05953e9571.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380700/normal_5fcff0e3a5560.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456121/normal_5fa58bea7fb13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366358/normal_5fc21ace88920.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379370/normal_5f8b319a63f2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368732/normal_5f9bcf9a74c68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365598/normal_5f86f3fd8c3bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387421/normal_5fc02892eb7e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455198/normal_5fadab7d6157d.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/5fc002e7e5c7695ca996b6a8/t/5fcea560c463130800a31f60/1607378272632/daxoduwivukukixefemovin.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/free_teacher_cv_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/sufivegumitutarulidaberu.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 2

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_off00012cd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CD4 5128 bytes
SHA-256: ca6d6494e5a9a1d268751070bcd203b4f29e266e4ca70be27d7c0a038e643e5f
font_01_sfnt_off00013e72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E72 10828 bytes
SHA-256: 048f3e890339df374c0004340348d35f36caf6701b773e8c64f15bdac22eb67c

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