Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1ac8f7a3b99f71d…

MALICIOUS

PDF

61.3 KB Created: 2020-12-07 00:39:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 296e32ea4412a9f787765ec51a5db86d SHA-1: 1fab69f0e3475aa8fe771801a889f604f3811b71 SHA-256: e1ac8f7a3b99f71deba66e1625cf59e8e0726975ed2120723f3730772a3fe2d9
154 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 routes users through malicious redirector infrastructure. 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/strik?utm_term=escape+room+level+16+answer In PDF document text
    • https://cdn-cms.f-static.net/uploads/4458635/normal_5fa19a1f79a00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370303/normal_5f98e8f798d3a.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/5fbce344be7cfc36344e8aaf/t/5fbe3d941972c46e3c6ac1e9/1606303125286/union_zip_code_address.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5ee23c02f22b9d04e7ae/1606377187031/juzot.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/free_whatsapp_app_for_computer.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5e439ee0f32b874b4536/1606377035289/the_street_of_the_canon_vocabulary_builder_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd07d22edfcd2bda92ca82/1606223826827/dakeminoneriwemugeka.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/notovogolulewamirugoruto.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfb2312cf09257bd651d14/t/5fc0e9013570fb44d1244c9e/1606478082218/bubble_struggle_3.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5c92c11f6a41984a72880/t/5fc748146beae454316347d7/1606895637385/free_live_nfl_games_on_firestick.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc78ef503f04e270fe537c2/t/5fcabe856196e8461dfddcdd/1607122566009/70686327966.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffb332bbd740658015355/t/5fc148d1e18c5c478e2b71ff/1606502612353/kopoxijatolivuj.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/59362732197.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc114532bbd74065807882e/t/5fc1e9d218e72e5fdb1d0a2a/1606543831582/86487411907.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf513a2dd96f5918e55743/1606373691310/remove_nvidia_drivers_mac.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc50a730b6b03258f4ffca1/t/5fcd59ec3ff1011540028e81/1607293421505/hockey_jersey_hoodie_ducks.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b4f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4F5 5392 bytes
SHA-256: e2f9c8327e4b2b99f8811b094995398841bd3a5df8270984d95b278040815a11
font_01_sfnt_off0000c756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC756 9632 bytes
SHA-256: 679714e4a6d1f61b7aa0a5bc826835d36ab8c2fd68d81c1a1d8c9b13d5bdaa85

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