Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ea213426e01d305…

MALICIOUS

PDF

71.6 KB Created: 2021-01-03 05:41:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1f3f1ceb41702a2eaf3868ca9125ed45 SHA-1: 992af57035cb19b6d79d1c2a46e6f9930523a353 SHA-256: 1ea213426e01d305acaac3c046b92d396a61e7036818574b58039441908f6d2c
154 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 routes users through malicious redirector infrastructure. 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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/aws?utm_term=que+significa+uniforme+militar+en+ingles In PDF document text
    • https://cdn-cms.f-static.net/uploads/4460255/normal_5fd2533688a20.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423148/normal_5fc407a94cf62.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423133/normal_5ff12380c646d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413982/normal_5f9591b9d7161.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365635/normal_5fc6e00e440f2.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/42eb6f47-83ca-4023-b9ad-70abbcc3e83e/spanish_for_beginners_learn_spanish_fast_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/finite_state_automata_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/gewenegop.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/wurulafabosewawifibeso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b97b4ca2-82b0-4b1c-bfc7-d813299ef54e/mofitunomi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8389e15e-d75f-4463-bdb6-82d5234f0cb8/super_goalkeeper_soccer_game_mod_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41d9ab48-e5a3-42e9-b602-7206ff08e3d7/basketball_shooting_form_drills.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/can_you_additional_apple_watch_faces.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5433c24c-d2a8-4fdc-a6dc-b0b347952b84/67160543436.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 2

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_off0000d800.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD800 5264 bytes
SHA-256: 642ea515ad29e3c6caee1895c08214ad12064c99739db3d074dc1899510a08ea
font_01_sfnt_off0000e9d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D9 11524 bytes
SHA-256: 984a23f0cbfa8d83a69957e5138c98ca3fa30c5c996ea3f2cc76b254837a0ad7

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