Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb5dc1f1d819664a…

MALICIOUS

PDF

70.5 KB Created: 2020-12-31 06:24:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: c5b285a4d1ea7ae5511bfb8110e903cf SHA-1: 0eb13e1589e33e06d77f7125b631b6e84ec47fef SHA-256: eb5dc1f1d819664a9200a30a611ca7f00d19ff3a08f7953076c3f9e3737e3503
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file was flagged by multiple heuristics, including a high-severity 'PDF_SEO_UTM_REDIRECTOR_LINK' and a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The embedded URL 'https://trafftec.ru/strik?utm_term=disney+battle+heroes+apk+mod' is identified as a redirector, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the nature of the PDF and the detected URL indicate an attempt to exploit users through a deceptive lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/strik?utm_term=disney+battle+heroes+apk+mod PDF link annotation
    • https://muragifenujokuf.weebly.com/uploads/1/3/1/1/131164382/firafewebolemar_nibiren.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/JtEghyu/devil_hunter_eternal_war_redeem_code.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373241/normal_5fa0f93f143fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401694/normal_5fa8f42fe469c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404976/normal_5f97215d6362e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422906/normal_5fa50c0e27b14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365562/normal_5f895da11881b.pdfIn PDF document text
    • https://towetebofipu.weebly.com/uploads/1/3/1/4/131437669/caac1ec.pdfIn PDF document text
    • https://wajovojov.weebly.com/uploads/1/3/4/6/134652085/85c576af36.pdfIn PDF document text
    • https://cdn.sqhk.co/baxafapunubi/eghIvhi/81748655231.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2069458-3b08-4dd4-aab4-4fae6a5dd2b5/malafesitirir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/058363db-5491-4cb4-abe7-535553fc02c8/42642252235.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b187822-4231-4552-8bdc-25f126e5e8bd/matagosa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbf6becf-4c48-4fa0-8e74-4da74a26ceda/51268146352.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f65fcc3-3ca5-42dc-b8ee-6cfb20c56715/clash_of_clans_8_seviye_ky_dzeni.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 8

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_off0000d71d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD71D 5504 bytes
SHA-256: 58429c37729d56a9175a3d5c8db8674a612dcd88dda4b3bfc4c1713bbd8576ac
font_01_sfnt_off0000e9aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9AA 10512 bytes
SHA-256: 3e602c15b0248e3ec6c5080d3af99c5f4ff8f6f59d73f066ba2df9d1d8561ad9

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