Malicious PDF — malware analysis report

Static analysis result for SHA-256 709f04761d7889cb…

MALICIOUS

PDF

78.0 KB Created: 2020-12-15 17:49:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 98e3f3011fb8b74cb855c0ca804b8681 SHA-1: d66b104b099376f223aae0ff1e086096a895bb89 SHA-256: 709f04761d7889cb73482baa780db6aabf290fd3630bc28b081164d9d68ce416
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. The embedded URL, 'https://traffnew.ru/aws?utm_term=ambition+definition+pdf', is the primary indicator of a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for phishing or to download a secondary payload.

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/aws?utm_term=ambition+definition+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387033/normal_5fab8c87c9e9a.pdfIn PDF document text
    • https://laxigozi.weebly.com/uploads/1/3/4/3/134361341/fonubolo-kudata.pdfIn PDF document text
    • https://keberalu.weebly.com/uploads/1/3/4/7/134725283/cf20fce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446400/normal_5fb91a9f7abe6.pdfIn PDF document text
    • https://loguxofe.weebly.com/uploads/1/3/0/7/130775118/xazunanuraga.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/519ec7f1-3465-4860-b906-d5cd77e74309/daxiwuranadobezomafekuda.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe249661e25426e1024e03/1606296727086/data_collection_for_out_of_seat_behavior.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee6a5aa7-91dc-416b-b4a3-e9cb7ade45d8/65580774774.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41c162a1-9e5d-43c5-a48d-59050a0c04c9/tales_of_majeyal_summoner_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf2d63de407d5e35cdc3e1/t/5fd60dea96ed101a3e36987d/1607863787456/capitulo_1b_vocabulary_flashcards_sheet_2_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/arbitersports_mobile_app.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_off0000e81a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE81A 4588 bytes
SHA-256: 9d0befd3967c28c076a41fb8ed70e219b13515f19df4c788528e49d3460667c2
font_01_sfnt_off0000f794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF794 10956 bytes
SHA-256: 13c9dadffd5fe24e523b17b9626f587a509738a32809c4fc4db10c2a73ffcf7e
font_02_sfnt_off00011d07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D07 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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