Malicious PDF — malware analysis report

Static analysis result for SHA-256 022cd22c3af4c739…

MALICIOUS

PDF

70.6 KB Created: 2020-11-22 17:39:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b495ab10bd2d253a4b6f611e7543e1bb SHA-1: b840fe67f651ddfdb83505f8b23151c0ac5b6820 SHA-256: 022cd22c3af4c7393da8b445882b2750722cae3131c721a0e8387240ce9af374
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://traffking.ru/123?utm_term=city+museum+admission+coupons PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4406169/normal_5fb4fc92b644f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426087/normal_5fad13c30bab2.pdfIn PDF document text
    • https://fupexorugukemig.weebly.com/uploads/1/3/0/8/130814763/fd29572a5f2007.pdfIn PDF document text
    • https://xusawoji.weebly.com/uploads/1/3/0/7/130739635/sejup.pdfIn PDF document text
    • https://tawiwamukuzoba.weebly.com/uploads/1/3/4/5/134595143/9596562.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366958/normal_5f8980272e9fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5f86f73c02832.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499300/normal_5fad8f734e57c.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/7e1a54ad-2132-41c1-a8cb-40a1e641be5c/pavubutawudugo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71024da7-a428-41a4-a1d9-c059754cda0f/paradise_lost_book_9.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e57ba4e-d9d8-436b-9aa9-1c18a54a1ed5/31031046368.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_off0000c91f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC91F 5100 bytes
SHA-256: 135ce4a8c77a7418fa4d69d27cbb40b5f788c57f382708ad6a1466dcde52d0d7
font_01_sfnt_off0000da66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA66 11060 bytes
SHA-256: 1bcb78386e3faa02f984a7a1f13b7a9db163c17cf31260c41e61c3c150c2b3c3
font_02_sfnt_off0000ffc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFC3 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e