Malicious PDF — malware analysis report

Static analysis result for SHA-256 417ce663676e4a37…

MALICIOUS

PDF

60.0 KB Created: 2020-12-01 23:08:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 489da62b774b439cf45da9d5a04deb50 SHA-1: 534dca5d8a9a625f853312872ea8936ef611a9b1 SHA-256: 417ce663676e4a3759605be4cb701fb5bf5a70d8da65db78b05e850a23dc3eed
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafficel.ru/strik?utm_term=lesser+magic+essence+farming PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401558/normal_5f914f8132bc8.pdfIn PDF document text
    • https://mogoribomos.weebly.com/uploads/1/3/4/2/134266362/wixoziroris.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449987/normal_5f9dfde0e81db.pdfIn PDF document text
    • https://ledekatibawe.weebly.com/uploads/1/3/4/2/134265754/takimap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367278/normal_5f8d4e8f220b2.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/firigugixujotov/good_morning_song_video_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89ff8610-b1b7-4abe-b39a-5496a047db1f/negejagake.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/mozilla_firefox_browser_for_mac.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe2970ab-3824-436c-b1a4-a31ed524c6de/99810404997.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/kurajalatadu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24fa6d47-ccdb-468e-b95f-80fedb027027/gitefo.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/komevekuzafezow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8413aec-ea8e-49e7-992a-9ce46553ac2e/anatomia_cromodinamica_coloreado.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/interview_questions_and_sample_answers_for_teachers.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_off0000afe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFE5 5108 bytes
SHA-256: 3b351ec28d2954ca6a08096a993337799956e48e50c942d8ce0f9f196ddc5fd7
font_01_sfnt_off0000c135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC135 10064 bytes
SHA-256: 5114d9e8377ebd305110eda181be35a1eb42c0af0d85cf587007c4f57c8f1cb5

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