Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a130bac862d69ca…

MALICIOUS

PDF

110.2 KB Created: 2021-03-11 11:15:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: a1b7a2b1582b1a1a9de8ba32e3aef6e0 SHA-1: 7309978085293f6051017113801da9fa79047027 SHA-256: 6a130bac862d69ca6fbfbe95af99af5965fce25f103c8bd770eed16c9d1cc905
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://jacksth.ru/123?utm_term=third+person+plural+form+of+choisir PDF link annotation
    • https://cdn.sqhk.co/xupodafib/egjqje6/checkers_online_game_app.pdfIn PDF document text
    • https://cdn.sqhk.co/vasozaponem/XmLj4gf/disney_package_cost.pdfIn PDF document text
    • https://cdn.sqhk.co/letareximo/jbjegf9/xikewegedodudepug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461746/normal_601e527042a6a.pdfIn PDF document text
    • https://cdn.sqhk.co/gimexigerub/ihjbC6G/colt_express_in_tulsa_ok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481852/normal_5ffc8783055a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448103/normal_6029b33460482.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382773/normal_601d615517fe9.pdfIn PDF document text
    • https://cdn.sqhk.co/rirexiwudag/hiifhBa/lixuvegeluzawamorugo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbdffadd-a886-44ee-9cfe-658d3d4c3001/61911439660.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/riscos_ocupacionais_enfermagem.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/tajomufirer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bff83b67-0613-44d4-b5cd-afb25096bbbc/dimefujejerabinij.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/boo_breaking_news_video_editor_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99b1d7d9-f4b3-459a-9c1a-6791f5c82387/sears_appliance_repair_green_bay_wi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39c69e97-eef7-492d-8e34-2976bf4dead1/which_programming_language_is_used_to_write_most_android_apps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a6d9fdd-d8aa-4c05-9f84-610847330ef4/14336211927.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/wigetagaxu.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000144d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144D0 3312 bytes
SHA-256: cb5c8c6405a97e289a1d37fd8f3fa0fb9a9e5cd02c3f475be668e5c7f8c23a8c
font_01_sfnt_off000150b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150B1 5344 bytes
SHA-256: 7b0b2176a11a0301cbc372b14ace947522c10bb96402049d799ff853a77890f5
font_02_sfnt_off000162b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x162B4 16124 bytes
SHA-256: 882cd51a5a01304d20530dc63c3c29174e64ba1355b1951e0c63d0952a698aaf
font_03_sfnt_off00019380.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19380 16752 bytes
SHA-256: 211e4aa3197de6dbd17a92e483894284253ce219f2faf021912748c42e341b0d

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