Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce67a886b39aa0c7…

MALICIOUS

PDF

174.6 KB Created: 2020-12-28 00:14:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 507224857a2823e602e54c0cb9754dbc SHA-1: 132a96b4a39f2e29820f84232953615305d5934d SHA-256: ce67a886b39aa0c7d424d9a8b537e364ae11d4e3959d7218c542db20ee8ea505
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and an external URI pointing to a suspicious domain, indicating malicious intent. The ML classifier and ClamAV detection strongly suggest this is a phishing or malware distribution attempt. The embedded JavaScript is likely responsible for redirecting the user to the malicious URL, which is a common tactic for phishing or downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=telepathic+definition+short PDF link annotation
    • https://cdn.sqhk.co/guviterolovu/haiagdT/fashion_city_2_hacked_version_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420776/normal_5f9831129d4a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448731/normal_5fc2aa81a697f.pdfIn PDF document text
    • https://wowumasoz.weebly.com/uploads/1/3/4/3/134310839/5702668.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488560/normal_5fe2269b47ab9.pdfIn PDF document text
    • https://cdn.sqhk.co/pibegufuxova/pjfuxhw/paladinz_champions_of_might_mod_money.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487897/normal_5fe0b3af85360.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412378/normal_5fa537d3822db.pdfIn PDF document text
    • https://cdn.sqhk.co/nugutobudan/hgicigX/15480974665.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/panokojol/bolewutaxifiwujezupedexum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d69b32d-6ff9-4865-a97d-6e7ac7943326/lodemexuliniwiwufusegavi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52c85cdf-3b81-42ea-9854-2d9978f13af9/notability_free_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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024d64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24D64 8916 bytes
SHA-256: 254fe0f99ff6adb385b2f34648e728f95158ca1c02a220dea4c35d1e6a55a6d2
font_01_sfnt_off00026a27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26A27 5192 bytes
SHA-256: 266d3924c62f43a1c3b1ff7828f34b862eb861fe5847980e7e11e25398374a30
font_02_sfnt_off00027bca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27BCA 14972 bytes
SHA-256: 32366724196dcb50342ea610b220ad5a4085cbdf20aea3e7badbfc04f33b6c65

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