Malicious PDF — malware analysis report

Static analysis result for SHA-256 05be5fae43f83d0f…

MALICIOUS

PDF

75.2 KB Created: 2021-01-09 17:23:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4cd968ff6c048e22d5ac5beda25ee4a8 SHA-1: 60b0961e5cb93a6438bd2e46a5a2f4f81435d281 SHA-256: 05be5fae43f83d0ffe254bea34f341e5d97bc0e1f85a59992ea247d3fc0c83cb
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-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://traffking.ru/123?utm_term=el+fin+del+alzheimer+libro+pdf+gratis PDF link annotation
    • https://cdn.sqhk.co/fijajiles/hhghbsF/btd5_unblocked_games_66.pdfIn PDF document text
    • https://cdn.sqhk.co/wewidipo/gcz3ghd/granny_legend_hero_mod_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/rowofabuf/yhhgigd/6068098514.pdfIn PDF document text
    • https://cdn.sqhk.co/jiguluzufuwa/yS9ji84/image_editor_software_free_download_for_android.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377925/normal_5f9b8b418e9ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385633/normal_5ff8994ce4b84.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/Zih41ic/jotilujemibagolemox.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/b36d13e9-af64-44fd-8fde-9c8ea9180ce1/bijigawur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a03e998-da0b-41c1-885a-ed0f83d09827/jolie_plastic_surgery.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3bce2d1-b18e-4e10-b95c-7b27a2bf0f17/gineduruxafizaxiwepudo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0110f52-8a70-4941-b33d-ec9be7afdcc5/wooden_alarm_clock_australia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c02c1d7a-263b-4815-bf11-59e54f624ce0/7097810932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2bc2fd8-44b3-4aef-a281-bbe9ea4d2af1/23245816819.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11d25d20-ac3c-49b3-b687-41b0ee7afd3f/step_2_push_around_buggy_pink.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cd4fac4-59e2-46c2-8014-b118c4aecba9/88394159584.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_off0000e45c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE45C 5604 bytes
SHA-256: e798ffa6844c80d243a4444e0a25377698c9f1bbdec78608ba91f8a9b8acb643
font_01_sfnt_off0000f747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF747 11876 bytes
SHA-256: 311c1c906fd59f8d9ff2faae054669f6c3ca7004552543238d6c085aa749bf08

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