Malicious PDF — malware analysis report

Static analysis result for SHA-256 019404bcc9026ba2…

MALICIOUS

PDF

73.4 KB Created: 2020-12-09 19:52:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 583a410ffd770a7921ff9cdd20f8da54 SHA-1: bb6c25be55f65b48db068ae35e8160ff4d93f004 SHA-256: 019404bcc9026ba280d66629ddac643669d80a471132a861c0d19a413a83fad1
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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/strik?utm_term=paper+towns+part+1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407780/normal_5f92e4ac64a7e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc64d6ab8467722f1f88a1e/t/5fcaa512ca7d212f763f3c6b/1607116050877/audio_pro_addon_c5a_wireless_multiroom_loudspeaker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43462ff2-429c-4397-a847-e9c6b5726f3e/10153135844.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfd008c14dfd36feeb1b6e/t/5fc0f96808845d0924ad0764/1606482280233/how_to_hack_vlogger_go_viral_ios.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/nokigixofetologisuxepi.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/jaxus.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc553139698b02c7f3e0be9/t/5fcc7702662d5e24e09b09da/1607235336866/cube_js_react_dashboard.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ac9bb98-f876-47b5-a5a4-a1f0804883f4/dujerulelaratuvi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f3af1c8c741314320bf8/t/5fc28f6d18e72e5fdb2adfc9/1606586222638/67984154915.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6483bfde-9da9-4d81-a333-06f3506e3190/19775395559.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/koxam.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7b09f382bec7399f90fc2/t/5fcc3842cded405bb8cb3941/1607219267198/jomupobob.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d49a16f6d44b07be6b5d/t/5fc0f88c3570fb44d125ead5/1606482069840/24037137466.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e14f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14F 4928 bytes
SHA-256: 45c472f293cac7c23583df6d907d52e58c8f95941b0210f80faaf6c28fc13ba5
font_01_sfnt_off0000f236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF236 11380 bytes
SHA-256: 71a7101fb55b7702b137769c989c4e43ff97ce03a303ded917dab0a482bd1c90

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