Malicious PDF — malware analysis report

Static analysis result for SHA-256 7742ae22d2b32b7a…

MALICIOUS

PDF

69.0 KB Created: 2020-11-26 01:22:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: d5ad422656f533ec4e6ed4b3416e54a6 SHA-1: 7651782c419f148e122f25148ba472540e032d66 SHA-256: 7742ae22d2b32b7a32989e8d1874c4138d31295d9e732f4c879cd01d7d9fe58c
96 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 lure related to 'Akatsuki no yona season 2 episode 2' and embeds a URL pointing to 'trafffi.ru'. This URL is likely used to redirect the user to a malicious site, consistent with a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffi.ru/123?utm_term=akatsuki+no+yona+season+2+episode+2 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4415080/normal_5fbe52cfddcae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377100/normal_5f9ebc3b4a57e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369152/normal_5f8a44503fb14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415065/normal_5f9ddaa327b9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413002/normal_5fa711415e1af.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/e958cf5b-a532-4970-8a4d-9401a8f63ebf/raputifegebeboxobumirif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/391f0eda-64eb-44b2-975e-8cf3fcdf6631/jopafubirunamabojujoti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/674e646d-2e61-4bdc-b983-5bddc9cad602/10434379763.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d96f08c-2c4a-450b-939f-621b219fd6c8/a101de_bu_hafta_neler_var.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb557346-0cd5-421c-adde-777e57b52410/52693635880.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/que_es_el_radicalismo_raul_alfonsin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1830b277-2fe6-46f2-a306-f10aad583459/repr_method_in_python.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccdddfc0-5a7f-4e2a-abf9-7e5111a3e509/sofuvepudesomodizoleti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62713f94-a1a1-492a-b533-4f3db22b0e7e/vesuxugafud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae8c430f-4c17-41b0-9414-9928bb8dee04/kuditeze.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_off0000d216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD216 5112 bytes
SHA-256: 68941dfdfcf5ec9308a2ee327cd0de7dc04fa8498a7e248083993db761511590
font_01_sfnt_off0000e39e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE39E 10368 bytes
SHA-256: 7497e23ae448c3740fba7504159a53c27a7908b1d36a58828fabb024597437db

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