Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f96e08f7f4c6782…

MALICIOUS

PDF

67.1 KB Created: 2020-12-11 02:58:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ef4c233c75aefc89c6b067012b490b69 SHA-1: 298f089bab3bea4d6cab8a71ed395063d4f21d08 SHA-256: 2f96e08f7f4c6782a5ade5cf7443a3329c78fd896b0f07da750529e79a2b9c7a
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://trafffi.ru/strik?utm_term=bank+transfer+receipt+hsbc PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374518/normal_5f9a4ed34b7c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382961/normal_5f914d2ed8f2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369626/normal_5f8a14122348d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0f485cd1e280355d49316/t/5fcff4c0e6b3452ca5073dcd/1607464130369/polebiganafikumuzi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2e3d06b97992eb568e234/t/5fc5c8f418e72e5fdba005ec/1606797556944/lamomomaza.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc587ece2fce462bcab511b/t/5fcc1b9ad235d37878b4dd70/1607211930972/82692610210.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc195ac6b97992eb560ddc3/t/5fc6fc50e2dcb1274de32803/1606876240516/lenovo_support_assistant_software.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/930fa540-9d3c-4f01-9d60-1d928552abd0/haz_llover_abre_las_puertas_del_cielo_descargar.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc290a36609fd0ee79c0a56/t/5fcf1d9e57846c5b834f5739/1607409054067/citytopia_mod_apk_android_1.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc531f011f6a41984a1bae2/t/5fc98b2287b36f46d4f66e4c/1607043879955/telecharger_tubemate_apk_android_gratuit.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc35ec0405d5340f3397707/t/5fc7e9f689c46b43240888e9/1606937081054/paradise_island_book.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc50b14104edf1d779bbfda/t/5fc97093381c601d673361b2/1607037075833/7440999595.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf27472f8b574a0f25f10/1606218357095/49835190897.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_off0000c91e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC91E 5324 bytes
SHA-256: e5d21832dd809a63585e40302c4c38176a28bdf44747f8fc366ef782abcba13d
font_01_sfnt_off0000db3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB3B 10724 bytes
SHA-256: f6a1e34d8355a174731a9ee3751faa9a4b2ed3279188a3166c85693d86e6ac1b

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