Malicious PDF — malware analysis report

Static analysis result for SHA-256 af68d2c81ebf9ed5…

MALICIOUS

PDF

73.6 KB Created: 2020-11-17 18:57:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ecb0de56139e15993a554a976e083a65 SHA-1: 10af73cd54b822c463020ac35ec33fa8f860080d SHA-256: af68d2c81ebf9ed5dca893c6d15eebc3d4f103a70a7db7b3a4d05d4b2a1ea9a7
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 0.9998

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://traffking.ru/strik?utm_term=avatar+the+last+airbender+the+rift PDF link annotation
    • https://lijipowurop.weebly.com/uploads/1/3/4/3/134314174/e03ee47c9fa.pdfIn PDF document text
    • https://defejeve.weebly.com/uploads/1/3/4/3/134386135/xinexijipumipog.pdfIn PDF document text
    • https://sotezunokupew.weebly.com/uploads/1/3/4/6/134654589/nijovilikemidoj-bimujek-wukeduruwafok.pdfIn PDF document text
    • https://tuxibefogeja.weebly.com/uploads/1/3/4/3/134359070/nunezolaxokufeb.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://s3.amazonaws.com/muvunekagok/85293729804.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/houseboats_for_long_term_rent_in_florida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ac5de0a-027c-408e-bfcb-c610312c5e01/75820058290.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/74530966966.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/intensive_pronouns_worksheets_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/718620f2-6539-42e6-a386-458d263e226f/nupewobegadapekapox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85334746-0c42-4589-ad8a-dc1789ba90c6/cartas_a_um_jovem_investidor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffe72730-e4ff-449c-a22f-1f74b9ad758e/jasexixijegijutededonola.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f08871ff-4c6b-44ab-8832-48664e4a355f/7299695382.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/broadcast_message_in_android_example_code.pdfIn PDF document text
    • https://s3.amazonaws.com/zugutixe/85897746249.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_off0000d5d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D1 4864 bytes
SHA-256: cff6e1e885e3fd6ed37b053df12775432816fabf7aa92d96f36166d64204f00a
font_01_sfnt_off0000e641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE641 10872 bytes
SHA-256: ba3c1ab9d1b78d5ed68acb00859328526cf0914ab7d6fa1ce0ca9c6a1ecb8258
font_02_sfnt_off00010ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AE3 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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