Malicious PDF — malware analysis report

Static analysis result for SHA-256 366b2f0eb03ad827…

MALICIOUS

PDF

70.1 KB Created: 2020-11-14 10:40:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3786ff4f3519eae78ba1819ca81110ed SHA-1: bb353a4511615230c17ee335ba680390024f5059 SHA-256: 366b2f0eb03ad82785ebd329a91ac19ce3cd7bd179adffce7e1b827d56430b3f
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF containing an embedded URL that points to a suspicious domain, traffset.ru. Heuristics indicate the presence of external URIs and a high ML score, along with ClamAV detection as Pdf.Phishing.Trojan. The document body, though heavily obfuscated, contains fragments related to job postings, suggesting a phishing lure. No scripts were extracted, but the overall structure and URL suggest a phishing attempt.

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://traffset.ru/123?utm_term=middleton+fire+department+jobs PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vapite/20821612289.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc86b797-0def-4d86-8993-cf75bc9a3eb4/sodazapogexixaxufuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d387b422-f083-491a-8b10-35801b6a306f/24272537358.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2648cd76-effe-4a68-ae7c-be721808ba45/66075811139.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfe1fbb3-cd0e-43f7-ac3e-0e748da0a922/mekoteluroxogozezum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f26c4f5a-bb11-458c-86b4-c92fb6983b33/faxul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74000272-d966-4d6a-b2c0-0f32fc6b40c0/74608082.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0022ff5-d45d-46eb-a525-2e9ac4cd84c8/how_tall_is_geralt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa130caf-9079-407a-bf9b-41193e883f19/xukewunekogokarofobubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08f872e3-2a45-4b93-8d6d-a73ffa393e8e/the_silenced_watch_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/776a2b84-a495-4769-bbfb-2fe53e884f9a/28898788632.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8b94ce4-8033-4f5b-8bf5-31f85748d8ea/sadalonepisetenu.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_off0000d3d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D1 5408 bytes
SHA-256: a04dd73058acdbfbc2f7ada9df0e44039b3cd33de29c683655e5b7228614e8f7
font_01_sfnt_off0000e625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE625 10920 bytes
SHA-256: 5dbe97e79fcf5f24ea11b77b18759f4d2d381c725fad0222d539bb37b362d1f9

Open this report in the interactive analyzer, or submit your own file for analysis.