Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01fa03128cc5f77…

MALICIOUS

PDF

69.9 KB Created: 2020-11-19 16:46:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 867e4e33b6b2d4d5ce681c0e700da85e SHA-1: d869c9c9356e2383780008831f7701a8caf1bff4 SHA-256: c01fa03128cc5f7712df9967ecab5bb5544689bfa539948588257fc402686953
96 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 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://trafftec.ru/123?utm_term=shell+leather+ffxiv PDF link annotation
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/1214108.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492575/normal_5faebef9aa86c.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/8045369.pdfIn PDF document text
    • https://lujisitezolip.weebly.com/uploads/1/3/4/1/134109273/nunibewavax.pdfIn PDF document text
    • https://fexafunoketu.weebly.com/uploads/1/3/4/8/134868662/9979639.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367674/normal_5f88522ec9633.pdfIn PDF document text
    • https://ninuwekij.weebly.com/uploads/1/3/4/6/134625354/d2df7a0a8f.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/0d553cad-e0b7-4405-94e0-161397ae2899/shrek_espaC3B1ol_latino.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbb5fd97-e07a-4cd2-a7a8-f636b43d940c/50014361685.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/279911e8-e404-4997-8b64-b4f24f90b5f0/bugetedijabubelenamimepe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/304e3a61-117b-41b7-8530-6de39d41b32f/66898612025.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c324d38-245a-4eb7-a2db-3134b2670f38/dna_double_helix_coloring_worksheet_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76f59af2-de4e-4323-9daa-056483898c80/61211409482.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a774e99a-f533-46a1-bd25-29b160f0b2f6/tuzolexifu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c02d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC02D 4908 bytes
SHA-256: d8062f72cfe5616c9314119edcfb1c44af6ed61d9d5d870fbd2131c10358f94c
font_01_sfnt_off0000d0e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E0 10944 bytes
SHA-256: d7ce7be51bd3472c14453578a015267a06a13f682123b834fa40d4b9eff74904
font_02_sfnt_off0000f5aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5AA 16092 bytes
SHA-256: 39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67

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