Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffdff9dd279f2bb1…

MALICIOUS

PDF

70.5 KB Created: 2020-11-19 03:36:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 6be8a0032bda9c460b5108c0ea01d817 SHA-1: 1b70d83a2b0fa02c233eacb5758bd30467bce109 SHA-256: ffdff9dd279f2bb18a0a8815863d173fc8af1ec46b6fdb0f0790d6dc3f0c1857
104 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and heuristic firings indicating it is a malicious phishing lure. The 'SE_INVOICE_LURE' heuristic suggests the document's content is designed to trick the user. The primary malicious URL identified is https://trafficel.ru/aws?utm_term=competitor+reports+advantages+and+disadvantages, which is likely used to deliver a second-stage payload or redirect to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=competitor+reports+advantages+and+disadvantages PDF link annotation
    • https://duxawedi.weebly.com/uploads/1/3/4/4/134477895/6933930.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374369/normal_5fb40174798d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464297/normal_5fa36f05b3694.pdfIn PDF document text
    • https://givovirudodax.weebly.com/uploads/1/3/4/5/134587764/sitipebikokinitos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366620/normal_5f8fa1d11aae9.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/43f8cfee-18fc-4cd4-8e73-9c469b3af979/limbaugh_funeral_home_portland_tx.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f9fee7f-6e4a-4ad9-807e-6dc07879a956/9047515740.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/agendas_escolares_personalizadas.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/17153564705.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c52ba8a-a6d2-42f8-80fe-99574f337ed0/4752576055.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4543062c-2b27-4b11-b018-3d447a4cae44/mercado_matute_la_victoria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fad9b40-db10-44a3-8699-809ac06c2d8d/71337135600.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4714fded-1637-4de2-9d00-14320d0b380b/47872782683.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_off0000ca07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA07 5120 bytes
SHA-256: e79b4bd622cff832253a92b77d6caa10e4b9f4c93ae059bc0bd43b07e6c85a02
font_01_sfnt_off0000db5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB5D 10412 bytes
SHA-256: 92200377b08304b160c136805ad410cf3cfed591c0527a6c6824baf6e48313ad
font_02_sfnt_off0000fef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF2 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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