Malicious PDF — malware analysis report

Static analysis result for SHA-256 396f8f462c0f80fa…

MALICIOUS

PDF

110.3 KB Created: 2021-03-23 22:24:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 3ca26e381c8fb13490ee4b822ecc938b SHA-1: df1b7b155d93847f513ab9c056d2e259cfb3a824 SHA-256: 396f8f462c0f80fa408342c4b312156e8d722d135bd9ae97a56fe2adba7920a5
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically flagged as an external URI pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of embedded URLs suggests the document is designed to redirect users to potentially malicious sites, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://druttle.ru/wix?keyword=vic+darchinyan+net+worth PDF link annotation
    • http://tazizinujumijoj.mywebcommunity.org/12227827134.pdfIn PDF document text
    • https://walazufa.weebly.com/uploads/1/3/1/3/131383665/joseka.pdfIn PDF document text
    • http://zatoxuvisovapuf.sportsontheweb.net/espresso_english_collocations.pdfIn PDF document text
    • http://josumewemuzob.getenjoyment.net/vivitozoninamowam.pdfIn PDF document text
    • http://dorulezebum.sportsontheweb.net/google_company_employee_handbook.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393624/normal_600e5516b7c41.pdfIn PDF document text
    • https://loxujuzif.weebly.com/uploads/1/3/4/3/134368844/xugunexisagom-ziromenetejepar-nozunosupowaxo.pdfIn PDF document text
    • https://vetigepar.weebly.com/uploads/1/3/5/9/135989985/bccef9402.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402488/normal_5fda810c07c82.pdfIn PDF document text
    • http://tebogekememesij.mygamesonline.org/algorithme_ofppt.pdfIn PDF document text
    • http://janorewaxeno.mygamesonline.org/11708289711.pdfIn PDF document text
    • https://zigudawaza.weebly.com/uploads/1/3/6/0/136035030/zotuw-xavugov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486201/normal_601ed728c8909.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
    • http://vilumepidiwego.myartsonline.com/3411155659.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/55888665880.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/gadumedu.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/vajuvizuxegu.pdfIn PDF document text
    • https://441768bb-9839-4df4-8f78-dd1233b527f6.filesusr.com/ugd/7e6080_1b8d417d66574ab1b90376d7239e7ab2.pdf?index=trueIn PDF document text
    • http://fazaburifug.myartsonline.com/dungeons_and_dragons_1_full_movie_in_hindi_download.pdfIn PDF document text
    • http://nitubak.atwebpages.com/isometric_neck_exercise.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/simple_bar_chart_android_studio.pdfIn PDF document text
    • http://xurosuforudev.atwebpages.com/tipos_de_canales_ionicos.pdfIn PDF document text
    • https://9f349447-249b-4747-956a-316fe86e371b.filesusr.com/ugd/d2b720_90c1de095617436b8e4d29f434514108.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/regabutufe.pdfIn PDF document text
    • https://5de9ed01-d610-4143-94db-6f998645a8ce.filesusr.com/ugd/1d8bf6_4c55d360f7084db290b4a083a86803e0.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000149ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149EE 4764 bytes
SHA-256: 980624b32a8ddd25f65767410ceb77ecb1706fc53a84b1de656094e989376ece
font_01_sfnt_off00015a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15A1C 12248 bytes
SHA-256: 741d7c2a2f7a3bb0c39dc263e710272ec7fe8d9123f730e86c99aa05feebc74c
font_02_sfnt_off00018286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18286 17712 bytes
SHA-256: fcacf235c237dd6c162b8186a630a88853cac1800016065c8e71d7a5c5e6a395
font_03_sfnt_off00019cc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19CC7 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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