Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb6e2577683835ed…

MALICIOUS

PDF

110.0 KB Created: 2020-12-18 04:19:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 2f57d6354e00fac72923c53fc916377f SHA-1: 9dbfc34c4007e52ba4e75aa74758af17a5f2e2e2 SHA-256: eb6e2577683835edf6a49dbc719fe8263571057d1d15fe58128e5f64c1d2019c
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains an external URI pointing to 'traffine.ru', which is suspicious. Heuristics indicate the document instructs the user to disable security software and presents a password-protected archive lure, suggesting a phishing or malware delivery attempt. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9469

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffine.ru/123?utm_term=simple+village+house+minecraft PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404287/normal_5fda33732a60b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380403/normal_5fc058bb842f2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5cc9caf-6813-41a7-82c6-373876202987/jcp_closing_stores_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/sum_and_product_of_roots_of_cubic_equation.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2c9392bbd74065812d409/t/5fcd6cf105ddc9599d35cef0/1607298290288/fantasy_island_tv_show_cast.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf50fc64571256543157f8/1606373628689/check_mail_anywhere.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c846e51-65e6-4a5b-b455-f08348ce7c59/the_addams_family_3_full_movie.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5683e8787e879898a19a4/t/5fc69aa54f98375720c70612/1606851238340/sovudezixa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3022174d-adcf-4fcd-b385-a9c1b0fd0c48/metroid_prime_strategy_guide.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001277e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1277E 4312 bytes
SHA-256: 8728f7da585e80f2b670884f9ca4e9021422b9662d0fa51285d25c524afcc7d6
font_01_sfnt_off000136ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136AC 5592 bytes
SHA-256: da29ba0b793e5a5a396f7970499bc0d7cb057e95389dbef5a06ca252af3d8d55
font_02_sfnt_off00014985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14985 2880 bytes
SHA-256: 756e6b52e7d9e9c09477b872cf64501dacae81d29c9a765aff52d9d24632d6f6
font_03_sfnt_off000155a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x155A8 6808 bytes
SHA-256: 79c8845251282994b445610de75c840f5747521920a2ba2cfc2ba72156da0d0e
font_04_sfnt_off000167c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x167C1 14480 bytes
SHA-256: dd50f450c2091bea58e023e830567d4f799ebada615f8d863b720d16fce7dc61
font_05_sfnt_off0001939c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1939C 16384 bytes
SHA-256: 27d5aa48a66ed6e24074f1b6b97defbd08161f468927a62883f94c9ec160026f

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