Malicious PDF — malware analysis report

Static analysis result for SHA-256 1223b7d706a93e41…

MALICIOUS

PDF

101.6 KB Created: 2020-11-16 17:47:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 00cd711e118b0d12ae3ed1595a166094 SHA-1: 1ea5a71f4e6d9110cc70f7622bba214661cb2646 SHA-256: 1223b7d706a93e419f43c95a39c3ed202d7a1f7860970e39623f07b1ce66aa91
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'traffnew.ru', which is a strong indicator of a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect the user to this external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffnew.ru/123?utm_term=oval+white+pill+m515 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377098/normal_5f991f6da729b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374956/normal_5f89c42560eb0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370541/normal_5f8b504cd67cf.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/e7c06b6d-1e4c-45c9-9224-0245a1421970/96052904874.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cfa9b94-b547-4303-b933-1e3448ea07a0/gopapavamifodi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86f180b4-e261-4ff0-a0b6-4a05eb613f5a/69846809005.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ef3ed6a-31dd-40d5-a957-fc59695ec136/86823905178.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da0cdf89-5ac5-4f54-9a3c-aa18d604531a/75203827130.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1048923f-1a23-434a-951e-c715b4453b80/treasure_map_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/fofitaxuludusavuz.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/88141435641.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0724b3d2-aba5-4e09-a57b-2380cb6b7f79/bijotakubezuvusemep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2bf2b38-961b-4260-89fb-30c3e7ef5bdb/sokowizemisimadojevi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bff5728-dcb3-4685-aa5a-6280a9841211/73681060889.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_off00015219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15219 5140 bytes
SHA-256: 7ec774809e1cde2c790f883983532d96f501d97d6ba9e6a66a5679213fb27818
font_01_sfnt_off0001638e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1638E 11088 bytes
SHA-256: 2bde6d2db698c8c669d5e97018d94f21bb5bfeaab7eedab50a253005ae854049

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