Malicious PDF — malware analysis report

Static analysis result for SHA-256 08d55c472020cd78…

MALICIOUS

PDF

82.5 KB Created: 2021-05-23 09:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 011ccb651ef68c4b7d6201780d4f539c SHA-1: 07003076f54edeb606b7162307a5319d2d7050a5 SHA-256: 08d55c472020cd78cadaecb603bb84784b57a95e1c7279de22d81cdd361e1020
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body, though partially corrupted, contains text related to 'Fred Meyer prepared holiday meals 2020' and an external URI pointing to a URL that mimics a search result for this query. This suggests a phishing or social engineering attack aimed at directing the user to a potentially harmful website.

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://jottigo.ru/wb?keyword=fred%20meyer%20prepared%20holiday%20meals%202020 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4389090/normal_5fcdcb6f3a914.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448718/normal_5fc74d53d4978.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502511/normal_5fd23b1645d82.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462986/normal_5fe4f5875b156.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/2fbe6763-8f5f-4467-a1e5-f2210d657025/mulivug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/555f77ae-a2dc-4174-99df-941e6d843eac/daviss_comprehensive_handbook_of_laboratory_and_diagnostic_tests_with_nursing_implications.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/672bb3b3-0d40-4357-9766-d74ed22ab0e4/jepaze.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/tobazijimuxevajevonaves.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/bekhayali_kabir_singh_singer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7d38511-b34e-493a-bdbf-f619a14f1eb7/microsoft_office_for_mac_2011_catalina.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0aa4ba5-714f-4d7c-b827-95b0f64b9387/suunto_ambit3_run_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/77590126097.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/766584e8-9550-4f57-b414-5ebcfcb9e841/libro_historia_de_mexico_2_secundaria_sep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c80f40e-b615-4fb8-816b-88d34c471bfc/54821822532.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8efdf146-5714-4b3b-aa9a-93da4cf9c9b8/nikon_f50_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b204adc-2aee-4467-adec-5311508af110/stephen_abbott_understanding_analysis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc80c581-5bd5-4f9a-84c5-8a8b8dff57d4/tilif.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/larufote.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/266a7a18-d570-4418-a7f9-9f51c7acf0cb/nizomowonenoliwasi.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_off00010160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10160 5528 bytes
SHA-256: 55669e3c05ec16f9c8ed638bd72ff40bdfe8c47e410b2d94e72ee11fcd7e3084
font_01_sfnt_off00011409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11409 12380 bytes
SHA-256: 2e7409a9835558b98ae2a2defb8bccc1c965ae32bc535e4affa4ff894f30837b

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