Malicious PDF — malware analysis report

Static analysis result for SHA-256 67955f05739072af…

MALICIOUS

PDF

93.3 KB Created: 2020-12-31 16:19:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 112f087042f80a4860a38fa6d17258b5 SHA-1: 70450c74bf1aa5a93e744a6ba0093b9e537640b9 SHA-256: 67955f05739072afcbf2851c977f1faf19460fbe7b0a279d15050450c364809f
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a technique often used for SEO poisoning or phishing. The primary malicious URL, 'https://trafffi.ru/strik?utm_term=raid+shadow+legends+miscreated+monster+guide', suggests a lure related to game guides to attract users. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to redirect users to a phishing site or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://trafffi.ru/strik?utm_term=raid+shadow+legends+miscreated+monster+guide PDF link annotation
    • https://xezixopizanew.weebly.com/uploads/1/3/5/3/135314636/gurimapakoxeni.pdfIn PDF document text
    • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/785d69ac1.pdfIn PDF document text
    • https://jamakebowixon.weebly.com/uploads/1/3/4/4/134477175/menak.pdfIn PDF document text
    • https://dobaviwipiz.weebly.com/uploads/1/3/4/7/134766835/fb1166a6900d.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/xezisifirul.pdfIn PDF document text
    • https://lakujasoramaw.weebly.com/uploads/1/3/4/4/134400634/2592747.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/8d0dfad2-1498-449b-9d69-7e65ec6ed086/jio_meet_use.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/58835704419.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ed4cce0-8f6a-4e24-9e1c-a5bc95e98b06/34860408542.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/120d6be9-4052-49d3-aba6-2bec324b026e/viral_whatsapp_status_videos.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/astm_e8-_69.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/97065822621.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/8736393110.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f57be78-bce6-47e3-ad13-e046ddd1a4bd/lesson_plan_speaking.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/juan_prieto_valdes_mdc.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CB 4364 bytes
SHA-256: d73063697b3f0447107c02f265d1836ef21d1642a257e52b387b74386ff0d7b4
font_01_sfnt_off00010928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10928 5332 bytes
SHA-256: 6f464d8ea6031baeaece4a25d3d4d0d367805f9aab2fa0cafddbde728030c804
font_02_sfnt_off00011b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B2C 11792 bytes
SHA-256: 103174367992240f88d2046a49d6f3205535a309ce1a93446c5219de8f233811
font_03_sfnt_off0001438e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1438E 16204 bytes
SHA-256: 229ab82b5d1a3b0d6ba6e5b03db0e554433b136a9cec571ca44e937420b00859
font_04_sfnt_off000158e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x158E2 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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