Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6b1643b06fd5837…

MALICIOUS

PDF

71.2 KB Created: 2020-11-17 15:08:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 77508cdd1a0fded03836674823c25056 SHA-1: d0faaa08869f40f067160dd4937c85a43463a3f5 SHA-256: e6b1643b06fd583751f43ca8dda4b754181f8c19ecbf5a62f85353acff0ec1be
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, traffking.ru, which is a strong indicator of phishing or malware distribution. The document body, though heavily obfuscated, contains text related to 'sacred anointing oil', likely a lure to entice users to click the malicious link. The ML classifier and ClamAV detection further support the malicious nature of this PDF.

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
  • 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.
  • 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/123?utm_term=sacred+anointing+oil In 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/50ea8362-26ca-4318-98fb-182e0901cd88/tabla_de_dosificacion_de_concreto_po.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/aao_annual_meeting_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/sipewo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b91a2da-72d2-4cfa-a005-5f1dfec49271/wevuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/302a7e55-13d2-4c96-8736-82d79285c971/3708137145.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7786a0d0-fe7c-4e33-9783-7e629d03156c/68682645868.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/apaharan_movie_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/foot_anatomy_muscles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4355cfe9-471f-407f-9713-175889176e2f/zuragozikogukiran.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fcab497-2ba3-4df0-a34d-e8f4b1f9d7b1/bujiwifimajid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25c61967-8054-4e85-99ee-2904056ed69d/49815974445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d78f299-46ac-47af-889d-5e2d97fd49fb/lulimofanenakeporozofeles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c60a07f-faf1-4644-9361-ab5ed19585e9/lafotoxanipoxol.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/37722358774.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB56 4820 bytes
SHA-256: 67b7e665c915fe682887762b591e84ba959908d58b99e538da21cf96eacc3645
font_01_sfnt_off0000dbb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB1 11408 bytes
SHA-256: abbae14a957f7d12a73b05959ea595c012bdccbba95b369c09917234c6bfa176
font_02_sfnt_off0001026b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1026B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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