Malicious PDF — malware analysis report

Static analysis result for SHA-256 7468efce3c1ee6a4…

MALICIOUS

PDF

70.0 KB Created: 2021-01-01 17:49:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e58979fc54aed624b9253b0de5f7d781 SHA-1: e0d5c75d991fe1c7907296481dbb1c4523a0da63 SHA-256: 7468efce3c1ee6a4e3144913fc62e5af6a903307dfb98b9f3edae07736a45f6b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'traffking.ru', which is a strong indicator of malicious intent. The document body, though heavily obfuscated, appears to contain metadata related to its creation, but no direct instructions or lures are discernible.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffking.ru/strik?utm_term=catchphrase+buzzer+sound+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373304/normal_5fa6ee541bd52.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402718/normal_5fa8934deb357.pdfIn PDF document text
    • https://cdn.sqhk.co/wuluzajiroz/heuPXW5/healthy_sandwich_recipes_for_dinner.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381541/normal_5fe3523b17b27.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475203/normal_5fe01c4415f18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421342/normal_5fe89cb82b399.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452624/normal_5fd96ce2c9297.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370285/normal_5fb2f381c368f.pdfIn PDF document text
    • https://cdn.sqhk.co/xalurubizud/rgfihgh/photo_editor_online_pixlr_free_edit_image.pdfIn PDF document text
    • https://cdn.sqhk.co/dizoketa/iiyQSfK/zudawefewadikalolekuluvo.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/25d760f4-e810-46fe-94d5-8718bccc6c49/kinigi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dcb0a80-467e-468d-b8b1-47fc235cda6b/kipopomobukazulavodijo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40897a91-2bc5-43e8-a1b6-19df4244e849/magic_the_gathering_liliana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c873973-1f53-411a-8404-5f17f36010a2/10_bloodiest_battles_american_civil_war.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000badb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBADB 3852 bytes
SHA-256: 1d3db7aa9016679979c30d4f6c22b6055c1a49da2c117bd52927728119b0812b
font_01_sfnt_off0000c730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC730 5300 bytes
SHA-256: 76528b57281ff91d548eaeddf105ef314e5770e767c15aaa46386e307e1d0439
font_02_sfnt_off0000d93d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD93D 10276 bytes
SHA-256: e21ab232e615689a0f8db14f70c3c89560e3968259c516b5bc62fd80d2972ef0
font_03_sfnt_off0000fb47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB47 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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