Malicious PDF — malware analysis report

Static analysis result for SHA-256 fccccd4d9995aad6…

MALICIOUS

PDF

78.0 KB Created: 2021-05-14 09:58:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30735daad71c9df89d8882554e52eb88 SHA-1: 7bd43f769c54adc2d1dac621681e6a064f0d5a9d SHA-256: fccccd4d9995aad6ee5ac39ef24ac94405eb48066128bcb6542e854fd6b309c0
96 Risk Score

Malware Insights

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

The PDF file contains a URL that mimics a search engine result, likely intended to trick users into clicking it. ClamAV detected this file as Pdf.Phishing.Trojan, and a machine learning classifier also flagged it as malicious. The embedded URL is the primary indicator of malicious intent, suggesting a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://pelibifir.ru/strik?utm_term=american+psycho+book+cover+artist
    • https://static.s123-cdn-static.com/uploads/4444655/normal_5fe129274c3bf.pdf
    • https://static.s123-cdn-static.com/uploads/4500183/normal_5ff02b8344d34.pdf
    • https://bijadatexate.weebly.com/uploads/1/3/4/0/134013249/27dc339a8d03fa5.pdf
    • https://cdn-cms.f-static.net/uploads/4464319/normal_602c4c7a494bb.pdf
    • https://static.s123-cdn-static.com/uploads/4407576/normal_5ff85b06d184d.pdf
    • https://cdn-cms.f-static.net/uploads/4418574/normal_605a6d7769a6b.pdf
    • http://fegiroxopirez.sportsontheweb.net/golapitexegogevaw.pdf
    • http://mizejodaf.mywebcommunity.org/livro_can_t_hurt_me_em_portugues.pdf
    • http://xonejalevesezom.sportsontheweb.net/90151155550.pdf
    • https://cdn-cms.f-static.net/uploads/4470960/normal_6026131dbe6e6.pdf
    • http://zokoxakabu.medianewsonline.com/73226715091.pdf
    • https://cdn-cms.f-static.net/uploads/4478146/normal_603a4d9f76a10.pdf
    • https://kewekekonuv.weebly.com/uploads/1/3/4/7/134732265/8243640.pdf
    • https://xowogibudul.weebly.com/uploads/1/3/4/4/134446034/wevejebafonebi.pdf
    • https://poxobavu.weebly.com/uploads/1/3/1/4/131453713/224430c52ff6.pdf
    • https://cdn-cms.f-static.net/uploads/4470017/normal_601e80b2299cc.pdf
    • https://static.s123-cdn-static.com/uploads/4464720/normal_5ff607a8be5a0.pdf
    • http://gopusoduj.mygamesonline.org/relolid.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/95e32bd3-59b1-40d4-8f75-babbc141a108/what_is_the_desert_in_arizona_called.pdf
    • https://a01f0313-f680-4530-87a9-ce77a10bb621.filesusr.com/ugd/ac0554_03b840801063469a8a8cbcb7ea29cd79.pdf?index=true
    • https://c84ffda1-e72a-45fa-8ce8-a771970cf326.filesusr.com/ugd/9fd656_1f717b66d13a4b0986ae4b33fff4e116.pdf?index=true
    • https://uploads.strikinglycdn.com/files/eb9e9bac-344c-4cd4-a430-9ba6a4069cce/a_lesson_before_dying_chapter_1-10_summary.pdf
    • https://94cb5446-44f7-499c-8ddd-8d9df3a2db3d.filesusr.com/ugd/9b9c26_7d0909526ebb48a686c9f522cf97c43a.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3bc.bin
1affa9bb75f8d833f4eadc60b2acc50d00bf221fcbac96cc1d4181ca9f3b8c9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BC 5496 bytes
font_01_sfnt_off00010647.bin
99b407f1436c462f96b9c2e4ef92eba9b4775935d961680b2a1ab9f0378f78c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10647 10616 bytes

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