Malicious PDF — malware analysis report

Static analysis result for SHA-256 4074a7ee5f70226a…

MALICIOUS

PDF

103.3 KB Created: 2020-12-14 23:23:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: afec8d40f4d475461ce5d1264cf628bf SHA-1: 973451b19173c21650d885c6bf36beea94108357 SHA-256: 4074a7ee5f70226a59291648d85c28e2825faf02879a96bd5b8052d62a2ab4a8
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 0.9997

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/strik?utm_term=arduino+power+on+off+switch+code PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4451927/normal_5fcba59ec5815.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407777/normal_5fce56d3be673.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/de080c89-0cbd-4ed7-9a46-d8c5327cd14b/introduction_to_programming_using_python_solution_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ad11c9e-7fa7-4b9b-acac-345c6e435957/43026208586.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96682ec4-02de-46dd-972c-accb7d3bdc7c/94901278110.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77900436-75db-4180-afa8-f12485bb1fe7/wejedanenexaweguxirexeje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9d1770a-6fae-4170-80e8-a7727ce20ade/totalitarian_and_authoritarian_regimes_linz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9517c896-413b-44b3-80f4-5be623f79ef0/1811815792.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/61559942568.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79d49a6e-ef64-4102-ba5d-1ff57ab47896/17911572485.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5adbcf9866f3fd2f48671/t/5fc610373c6ccf69f32ec868/1606815801065/round_glass_table_top_replacement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4da93bc6-58eb-49cc-9d9e-a2fd3f98649a/current_news_nellis_afb.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1366588c99b6d37a92994/t/5fc55df79ee0f32b8706f6ba/1606770168795/botexu.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

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001592e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1592E 5084 bytes
SHA-256: 116e51170f3f164e102e06cdb4213b928cca845a314cc985401658270c2b6752
font_01_sfnt_off00016a91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A91 11124 bytes
SHA-256: 0925bad2ffab71c36d5560d7fbb67442863f5bfa909a9f401f3ad956a7d02f21

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