Malicious PDF — malware analysis report

Static analysis result for SHA-256 26bfc9923343381f…

MALICIOUS

PDF

68.1 KB Created: 2020-11-30 14:29:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 73308bfd605b6ffdc09ad0ccbe0aeac9 SHA-1: 25ed49f9f3cd4b0393858303b22c30df5c3c492c SHA-256: 26bfc9923343381f9765ca57233862d4f60b4c33fa8e5e1f8891534003490ef6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that redirects to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to trick the user into visiting a malicious site, consistent with spearphishing.

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=volvo+commercial+song+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4504791/normal_5fbd8fbf5f900.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368763/normal_5fa98f98e0c71.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376879/normal_5fa834471ac7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370525/normal_5f89796f9193d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368225/normal_5f99b0c01599e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417817/normal_5fbe04375a416.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371247/normal_5f8b5269da02c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/33e281a8-fd62-439d-bdde-2e18b2a68eaa/suzikuveburoxujoxopuloz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78ce1db4-8e74-4539-a0c8-4903d864a70f/fires_of_war_ff12.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5c564e98326c0207f88c/1606376535200/duzigixinegakobawixe.pdfIn PDF document text
    • https://s3.amazonaws.com/runuzitexokol/microbiology_laboratory.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f89cd80-bea5-4cf6-8787-91d6ed227b6e/52383092491.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d70dc14dfd36fef128e0/t/5fc4c6e96457125654d23355/1606731502994/35177672508.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68877a4f-77c6-4df4-8a30-0eada2aa1661/the_great_american_songbook_the_composers.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/vonudubemod.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf625218e72e5fdbcf9442/1606378070174/game_guardian_speed_hack_apk_download.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1CA 5124 bytes
SHA-256: 210af1f08bbb5a9a555b894a83b51feed932a03084f202cd1e758699e8a593ba
font_01_sfnt_off0000d30a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD30A 10116 bytes
SHA-256: deb1e64139e01a0e81fb2fbcabc500521816469bc50ca9a1c1bd114c7bf71e26
font_02_sfnt_off0000f5c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5C8 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.