Malicious PDF — malware analysis report

Static analysis result for SHA-256 a76ac0df9ed29071…

MALICIOUS

PDF

67.5 KB Created: 2020-11-25 22:44:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 7a0cd4944c7afd0299d0484582fa0f90 SHA-1: 9c53dedaf401ef81260115355a1541a38576ee7f SHA-256: a76ac0df9ed29071dc80192cc6a55a0e88051eb76a2c48cd2b3f53502aaee139
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://trafffi.ru/strik?utm_term=patriots+throwback+jersey+2019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402478/normal_5fb817a12eca8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373520/normal_5faeec927a508.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454170/normal_5fada1445b59a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406793/normal_5fa4f0a66a6df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394062/normal_5fbe004f73688.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492281/normal_5fb3ffc4154e3.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/4a16ff52-6943-4cf8-82c0-74dc49d7b5a0/are_the_tales_of_games_connected.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/original_answer_form_in_texas.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/drivers_license_generator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/095b946c-5bda-4baa-91e7-7fb4ec92f0b9/anonymous_se_lhe_cai_a_mascara_versi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52c08ef0-7df6-4791-a544-fb36f1c5ca33/tezirug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7aecea1-fd03-4bc8-99bc-ada7c6c5d8da/bijepinijin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2caf562a-a0f2-4dc8-ab3a-417e00d882f8/giwod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c119812-2ed0-406f-bd8a-966c5bf8dbbc/bolifoboxizadog.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_off0000c92a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC92A 5812 bytes
SHA-256: a00f48554f72f57ee3d54de825597e22d61de8309b475a568f364db13837c3e5
font_01_sfnt_off0000dd0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0F 10716 bytes
SHA-256: f816366b9606ad14b66d1e1155489b086e6fbacf9f8f9881bcfdad0902756faa

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