Malicious PDF — malware analysis report

Static analysis result for SHA-256 635487a960c5b1e0…

MALICIOUS

PDF

131.5 KB Created: 2021-03-07 16:53:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b9dbbe24cc9ae41a872ff0a5655dafd2 SHA-1: d679bc95e4bdea358a733417317bac115cc910a5 SHA-256: 635487a960c5b1e03899706f340cc1ed176ac98a9d183e4c77795b83380b43fe
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 0.9996

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/strik?utm_term=symbolic+logic+definition PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446499/normal_5fdd64ad65093.pdfIn PDF document text
    • http://dasezin.getenjoyment.net/86002180463.pdfIn PDF document text
    • https://bomejafir.weebly.com/uploads/1/3/4/7/134725936/dufixodofalavaviti.pdfIn PDF document text
    • https://degijidugaf.weebly.com/uploads/1/3/4/8/134886203/5978537.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421959/normal_603cc3237f26e.pdfIn PDF document text
    • http://lirinevewafa.mypressonline.com/2010_chrysler_town_and_country_owners_manual.pdfIn PDF document text
    • http://xizabif.22web.org/56326678269.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/92478063043.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a700ac8f-cf3d-4cf3-9c36-f67b84d787e4/88896806989.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be2b3179-41d9-4cba-b9bb-522d67c5d356/my_toshiba_laptop_battery_is_plugged_in_but_not_charging.pdfIn PDF document text
    • http://geforagegi.atwebpages.com/cellular_and_molecular_immunology_abbas_10th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fdc89c2-f211-4ad9-8ea5-33f1ea61bb9c/what_does_the_constitution_say_about_electoral_college_votes.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/43807098869.pdfIn PDF document text
    • http://xelidamos.epizy.com/44585564082.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/kipizibunujavisobiketi.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/nirewivemapi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A937 5204 bytes
SHA-256: 60a66dd1492596b224ff3dfd1d7242bbb4de45a0b78af8c2997537e2b518129f
font_01_sfnt_off0001baee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BAEE 15384 bytes
SHA-256: 20dc3e0a78808c5587a8f93b41a2d355c448538193bd1414d2e10b5eef479e9e
font_02_sfnt_off0001ea68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EA68 16196 bytes
SHA-256: f8c08fa7eb806811f9ec4d76f9fb35514e9e92fc67938f13f30b7a842964811c

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