Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed6cdf3748fe65d…

MALICIOUS

PDF

76.8 KB Created: 2021-02-26 11:01:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7b24c4494934367717fe89e85b77c519 SHA-1: a5b005e3609724c866b965820adcb0d0426b79cd SHA-256: 0ed6cdf3748fe65dacf9fe472dbf31d95729e0d7fd82b61db76db1688ff87e38
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, many of which point to potentially malicious domains, indicating a link farm or phishing attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external URIs suggest it's designed to redirect users to malicious content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://fokemale.ru/award?keyword=icd+9+code+for+middle+ear+infection+unspecified PDF link annotation
    • http://it50disconto.info/48407969107uzbkk.pdfIn PDF document text
    • https://sotivozorome.weebly.com/uploads/1/3/4/7/134733800/6597544.pdfIn PDF document text
    • http://gexomafe.mypressonline.com/wd_my_cloud_ex2_ultra_datensicherung.pdfIn PDF document text
    • http://my-favshope.online/cheatsheetwarroom_customizable_cheat_sheetsanv8q.pdfIn PDF document text
    • https://xiwabedosebu.weebly.com/uploads/1/3/1/3/131398066/1439650.pdfIn PDF document text
    • http://gnoogle.site/ghostrunner_ps4_gameplayd8rg0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427498/normal_5fcbb8911a73d.pdfIn PDF document text
    • https://losuwasujiro.weebly.com/uploads/1/3/1/6/131637226/sizas.pdfIn PDF document text
    • https://bigifami.weebly.com/uploads/1/3/1/4/131407708/5536047.pdfIn PDF document text
    • http://dk-inc.xyz/fajizodowe39men.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423780/normal_5fd10cb0572d5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://womawujun.atwebpages.com/20607319137.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/sap_crystal_reports_designer_2013.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/play_store_update_version_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/zawadava.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/chehra_a_bazz_song_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/bumajodajubaluwurome.pdfIn PDF document text
    • http://bugenerefajujus.atwebpages.com/principles_of_risk_management_and_insurance_13th_edition_test_bank.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_off0000e692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE692 5396 bytes
SHA-256: 0c1353b9e2f7af34827cec65c5c2942283249999846cbe386560c497b6bdec7a
font_01_sfnt_off0000f8d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D3 13720 bytes
SHA-256: 3ca2782cf1494e552c2ceb48b1a6e7b2af4d73b8cf9d728d36ffcdd61c909f91

Open this report in the interactive analyzer, or submit your own file for analysis.