Malicious PDF — malware analysis report

Static analysis result for SHA-256 f18957b61a64064e…

MALICIOUS

PDF

67.5 KB Created: 2020-11-17 08:07:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 55267ae91b984ab0ae850676efc71da9 SHA-1: 9403ac1e00f093063db330c263ba7c0122775e24 SHA-256: f18957b61a64064eb60d25a2ac22dceae32bcc33f8d8b52a872b878345864a73
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'https://traffset.ru/123?utm_term=panasonic+cd+players+portable', which is a strong indicator of a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a malicious site.

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://traffset.ru/123?utm_term=panasonic+cd+players+portable PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4455194/normal_5fa6dca8e8862.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/gupojakami/94141772856.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd7de649-ace2-478d-8582-c7db9d3ec4a5/lusedumipesajil.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/xbmc_cydia_source.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/lyrics_to_stagger_lee_grateful_dead.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50b87a6c-200f-43ed-85b1-86eae92db85b/kelenose.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5263ab7f-f40f-4692-a569-34714173b2da/lisaravitezapamusa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/412316e3-d08a-4a1e-95be-063923144fb7/8391256017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08e65842-bacf-433f-8900-d510ba75ddb1/susan_g_komen_pink_pantone_color.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/10920978476.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1afacd59-2070-4a5e-bcc6-83d5ca22b632/lujepinatolalol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff323476-09a8-4a07-bcf2-4de148c1ca57/hybrid_saiyans_tier_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba5eb31a-aa74-476f-833c-f227a8447a1b/joxokufodusa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8907c9a2-4c06-41b9-8768-60bc81814481/snare_drum_solo_music.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_off0000cac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAC9 5308 bytes
SHA-256: a72d50565d43762647776efd29b4c4bc752047f9c0ea2b932920ba00c77f99f2
font_01_sfnt_off0000dce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE4 10808 bytes
SHA-256: 65d6fd9f4f49ff903411e0c432d9f7dddac1e3f7a04422f892792b892ac8e2d5

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