Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce1d662277b0a90d…

MALICIOUS

PDF

76.3 KB Created: 2020-11-24 04:40:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: cf6c61116ec79fc4a4d7f7795c2769f1 SHA-1: 9111943c748551035fde6e955d98d45837b9b6d8 SHA-256: ce1d662277b0a90d9c6768219ecae342d0e512f564234de5c017638e9dfdcf52
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://trafffi.ru/strik?utm_term=pokemon+tower+defence+3+hacked+unblocked PDF link annotation
    • https://pesajupamobe.weebly.com/uploads/1/3/1/6/131607203/1a42290e44f7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467601/normal_5fb3f50ac698a.pdfIn PDF document text
    • https://lewejasolon.weebly.com/uploads/1/3/1/4/131437246/9944119.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421335/normal_5fa2f02172148.pdfIn PDF document text
    • https://gerexogevi.weebly.com/uploads/1/3/4/4/134463414/gupigolas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445550/normal_5fab2b77e6d55.pdfIn PDF document text
    • https://pupiwikupexi.weebly.com/uploads/1/3/4/3/134348736/2977486.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387933/normal_5fa6c15d8c3b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413467/normal_5fb8cc38b3172.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/7e8daaa8-f3b6-4277-addf-bb2b87ac2172/circulo_de_calidad_ishikawa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01c41054-7134-4858-a266-5d2657b1d226/27638785169.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7eb87897-b1e8-4ff0-ab3b-bf1d24bb9acb/8522210730.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94080781-2e15-4808-88e2-91a4072492cc/73517553260.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5df1cf3b-0871-4fe9-8201-43d08e376e34/rajini_murugan_chella_kutty_song_fre.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d195d1c-bb9a-46ac-8105-f57238208e6e/cyber_shadow_download.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000fcc0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xFCC0 21732 bytes
SHA-256: 4ef57cc43a5b3c546a2c453b5df2a8ac3365845ee13efeffbc2643bcab11cecd
font_00_sfnt_off0000c6e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6E2 5544 bytes
SHA-256: 4ce28069298ba5c2f2ef9d9cef84fe797591fae0c4bbe1c7c7979be1a50b146e
font_01_sfnt_off0000d9a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A6 10288 bytes
SHA-256: bb9769c4c50ff5fc931a368fc25179765f6e000c739f68f2fd2e525b15c1de74

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