Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8e2d39a767cfc34…

MALICIOUS

PDF

70.3 KB Created: 2021-03-29 06:37:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6d11251b7978e420d6908fc8c9ba4612 SHA-1: 7216400a6f89f78510cbca6fb018b998a49d85b5 SHA-256: c8e2d39a767cfc34a1764608fa6340d779145ae4b44a747e5f9b424f004b9559
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 0.9998

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://gimoguvi.ru/wix?keyword=stinky+cheese+man+script+pdf PDF link annotation
    • http://gagitevanonuti.mywebcommunity.org/what_is_an_example_of_a_marginalized_group.pdfIn PDF document text
    • http://wiwovurezibaso.getenjoyment.net/moravian_workbench.pdfIn PDF document text
    • http://hookup753.fun/29886291783xqf59.pdfIn PDF document text
    • http://d-youtube.com/jazujetodilumr95s.pdfIn PDF document text
    • http://youtube-subscribes.com/how_to_unlock_hill_rom_advanta_bedvua7j.pdfIn PDF document text
    • http://kokilubowo.22web.org/adaalat_kd_pathak_2018.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
    • https://uploads.strikinglycdn.com/files/401d5389-2f61-4456-9145-fce607c3b36c/navofipirodelasal.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/lilovabirotunariwezimido.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/85913196072.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2bb1491-ee87-48a1-b268-4cb54074126a/83003529123.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/gradle_build_failed_android_studio_3._5.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/free_printable_literature_circle_role_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/rugby_league_coaching_session_plan_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbb18b69-0e20-45a2-ae8e-fdbe3603ddce/fright_night_at_freddy_game_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a13712df-c23c-4b03-a6cd-c9834d072feb/27805482493.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/25593652100.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/wuxoxulasafejeseti.pdfIn PDF document text
    • http://gimobomir.epizy.com/70258063100.pdfIn PDF document text
    • http://segimoto.myartsonline.com/64379312801.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA07 5312 bytes
SHA-256: 51784eb557a558a0b34c89d8d851f22b2eb58751bec63afa09060bfd09cb46d3
font_01_sfnt_off0000dbe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE4 10016 bytes
SHA-256: 314e4ac131361d14f291c79ce44e47eae214a7f92d90536a9110f5099699ac57
font_02_sfnt_off0000fe44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE44 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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