Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd9647018ac3fa31…

MALICIOUS

PDF

68.8 KB Created: 2020-12-16 13:40:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1439c744738fa817e7a59f895fff6f9f SHA-1: 955be2d3e463b9a1fa92242a5b9dfb0035db5e25 SHA-256: cd9647018ac3fa319e9a1eee9bb880368300f1a2e72752c6b48c199e926b86ae
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. The document body contains a URL that impersonates a help page for Xbox, likely to trick users into clicking it. The embedded URL points to a suspicious domain, suggesting it is used to deliver a malicious payload or redirect to a phishing 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://trafftec.ru/strik?utm_term=www.xbox.com%252Fnetworkhelp+en+francais PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449618/normal_5fc32bfe36685.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479474/normal_5fbee6023882c.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/lakadutof/dersu_uzala_vladimir_arsenyev.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10a3d405d5340f32a5a2f/t/5fc54bf29b1ed035388be7c1/1606765554625/pikurasixavag.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/sazitojodupinarasosezol.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6636527a199023adacb9c/t/5fd05736fc93c51d16dc22c1/1607489335775/46125759902.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/ayumilove_kanna_skill_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1210ec89e1c4b8fbfc3b6/t/5fcf30c024ae147ef3d866da/1607413953971/shooting_games_for_ps4.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0ff5fa04221c71e83a63/1606291446340/prayer_of_confession_racism.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd11c959465c722a571f15/1606226379563/96353067660.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce6ba8564f736a5832ea25/t/5fd5f5b1ab1a676c7283126d/1607857585650/17567863427.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc597a0f9866f3fd2f3d113/t/5fcea44db49024127347396c/1607378006300/44891348762.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc556e688c99b6d37c4d50e/t/5fcaf7b16e74d26c6ff6520e/1607137206660/battle_for_the_galaxy_unlimited_crystals_mod_apk.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEBD 5700 bytes
SHA-256: 259a8b00caad1d5ac466bd7d5b2ba7fa3341e85b20c68b6038f6d1ef22f681bd
font_01_sfnt_off0000e220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE220 10816 bytes
SHA-256: 3dc5b8611cb631a2949d5be3af49ada01bcb7f5438acebd74169f14da4b41541

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