Malicious PDF — malware analysis report

Static analysis result for SHA-256 14794c0780ca618b…

MALICIOUS

PDF

77.3 KB Created: 2020-12-23 00:40:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 1acf016b08bd9d1de6a831e2d4d8913a SHA-1: b8f9542b844c6478d200b2da4430e0bfebee5512 SHA-256: 14794c0780ca618b9b66f5fdd51eac6c99d2c235c90c124816e3c834987d25b4
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'car racing in florida 2020', which is likely a lure. The presence of numerous external links, including one pointing to a malicious redirector, strongly suggests an attempt to direct users to malicious sites for phishing or malware delivery.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/strik?utm_term=car+racing+in+florida+2020 In PDF document text
    • https://zowimebewira.weebly.com/uploads/1/3/1/6/131606727/4595183.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404490/normal_5f997c0eef3af.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/lorifawuvawot/firefighter_wedding_script.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/mizaxewaxi.pdfIn PDF document text
    • https://s3.amazonaws.com/zokokamu/76900493053.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/18429151187.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/rapavowarusadigagagufa.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/82966884816.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/pirepowerejunamadizotu.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/apk_expansion_files_unity.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/nuwininamop.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/zafegavemujovazunudutidi.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_off0000f419.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF419 5192 bytes
SHA-256: 717c5eab60f040358b30377d25e52787696589b17fc85d23fadb594b511e7a23
font_01_sfnt_off000105cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CB 10336 bytes
SHA-256: 72376bd2ea8c48bbf8bf29cc7650a521eea55ebc542359093dfc265af3ab8188

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