Malicious PDF — malware analysis report

Static analysis result for SHA-256 b47bb5f56ae5c259…

MALICIOUS

PDF

67.7 KB Created: 2020-11-11 15:05:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b9796f08c2d12fb25a19fb8019e22ec5 SHA-1: 2aad31690e653d33a6f66fa0f168e30c1e3a00b9 SHA-256: b47bb5f56ae5c259ca1e9db1a9f586ad5ebcf9bfb930c8174d5f720f13420765
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website related to a video game, likely as a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect users to a malicious site, potentially for further exploitation or credential harvesting.

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://trafficel.ru/aws?utm_term=stalker+call+of+pripyat+ui+guide PDF link annotation
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/megumepagusib_nomozosodeb_julibitozutusaf.pdfIn PDF document text
    • https://gakexuguzadeza.weebly.com/uploads/1/3/4/4/134401700/pavodafame.pdfIn PDF document text
    • https://mabudorowux.weebly.com/uploads/1/3/4/4/134458492/7674020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/031713dc-b319-4e18-9834-445428a6b9ae/65065132605.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/tipos_de_inteligencia_test.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/678e4da5-67ca-4d37-8bd9-162946aef7c8/46847285675.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/376057ef-e26c-4568-a9e1-3fb93269979e/calcul_probabilit_loto_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/characteristics_of_elements_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f77f6a88-05de-43d9-b52d-efd978941334/juwamigeru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2ea8815-f678-405e-8a15-4efb08149a98/kmz_file_download.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/spintires_mudrunner_2_free_download_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8b5363c-c279-469e-819c-3e62408031f5/39892630787.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_off0000cbbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBBB 5416 bytes
SHA-256: 9e5c1b66caaa172959c167e6e274a4bd7b7198f69fba0aa6671c9732bed1c75f
font_01_sfnt_off0000de43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE43 10436 bytes
SHA-256: 142e98f273cfd0f8480a62d87ae288227baade0a03527beb887f1df23c9d2746