Malicious PDF — malware analysis report

Static analysis result for SHA-256 9080c53989c1b053…

MALICIOUS

PDF

74.9 KB Created: 2021-02-28 03:13:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: b0eb4703ea9e3648eedeff28039cd07f SHA-1: 71150a0c6accba40df183110984f57e1c7ba3cd2 SHA-256: 9080c53989c1b05331d9667244207000dd51536193424fdeb566a81a8f7bfdaa
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 suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit user trust by masquerading as relevant information.

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://leonvi.ru/award?keyword=washington+state+covid+phases+by+county PDF link annotation
    • http://testvvd.xyz/miwujixbphnx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478393/normal_5ff3243eb311d.pdfIn PDF document text
    • http://fastdonwload.space/security_incident_response_report_templateglw7j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456676/normal_5ffe04db23a52.pdfIn PDF document text
    • http://trysoda.pro/dead_or_alive_xtreme_3_guide_bookhxlde.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vavabi/full_form_of_aol_in_computer.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/atom_python_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/87905456519.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/58945983014.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/2181260208.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/black_fitted_crib_sheet_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/telekodogitimum.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/94005817936.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/formal_asking_for_meeting.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/63025451947.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/shogun_2_fall_of_the_samurai.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_off0000e83a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE83A 5524 bytes
SHA-256: bc7b52a1f32727c87d893f63f5596cd117c9753f473ba51bc4ea2fa61e55b56e
font_01_sfnt_off0000fb14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB14 10436 bytes
SHA-256: 50f53d6bcdb9e8baa90876810551b6986840531a90c27e4126e0880f7723d5f0