Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e927f3ab81560c9…

MALICIOUS

PDF

70.8 KB Created: 2020-11-14 00:23:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5a3a8e54568f508c95494ffd846c95b3 SHA-1: 240d682d9c91f5528ddfb3c81c078c655f9d4cfc SHA-256: 6e927f3ab81560c9d83ea087a1180a0a4269a544210dc5a534c3f3bdd20b905b
96 Risk Score

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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://traffine.ru/aws?utm_term=video+trimmer+freeware PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404969/normal_5f9ab3a5b3cd5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471081/normal_5fa834daaa0b3.pdfIn PDF document text
    • https://nudopimiga.weebly.com/uploads/1/3/1/0/131070212/ropaluvarer.pdfIn PDF document text
    • https://getedizexagan.weebly.com/uploads/1/3/0/7/130740146/janokirojiguxo-wanutijid-kunatod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4372d9d-0ea3-478b-81d3-30c7603ecc4a/wssl-fm_greenville_sc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91aeee5f-fb0c-4c8d-a441-e5b0756e2c09/download_greenbox_logo_maker_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/194d2dff-bab1-440d-abef-94497f1927be/81450147156.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/vedazajigilebufubefen.pdfIn PDF document text
    • https://s3.amazonaws.com/giwurode/6691676234.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5a7e1ef-b822-485f-9b18-fb8ad169ac0d/50389059339.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/kentucky_permit_test_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/mabinogi_fishing_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/zefuxalananajirezewimuwar.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/19920594222.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_off0000d89c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89C 4900 bytes
SHA-256: d73d59f602c868fd9b657a010cb0e8cf5134a37b38814064b27fdc78eb2f9ab7
font_01_sfnt_off0000e945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE945 11088 bytes
SHA-256: 8fe879b5ff2a02ed0f55cc6edbf1fbc7269e84f002177b8ddc38be3d3c04bbe7