Malicious PDF — malware analysis report

Static analysis result for SHA-256 e952c38c6faf4ec4…

MALICIOUS

PDF

73.4 KB Created: 2021-05-21 10:43:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7a3e4009eac01ddf860226eb80871fac SHA-1: 70012e148136fe4c400fd3d92d5a7d9f606dd450 SHA-256: e952c38c6faf4ec45b408094247fc91050fe15c5ceb6197f71cca93f6b1dc0a5
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://xezojetit.ru/strik?utm_term=bogy%25C3%25B3+%25C3%25A9s+bab%25C3%25B3ca+mese+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4377704/normal_5fc828783062c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488558/normal_6049842348b29.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444856/normal_602c546314b28.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487423/normal_5ffbd4782082d.pdfIn PDF document text
    • https://dapunilak.weebly.com/uploads/1/3/4/5/134506399/lilivi_jidedog_pekosove.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475720/normal_5fedac96a9cfa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386349/normal_604019e8ad9d5.pdfIn PDF document text
    • https://lumirofelefepo.weebly.com/uploads/1/3/4/8/134892557/3d4d5fcb632d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425916/normal_6020fdcb2eae0.pdfIn PDF document text
    • https://ginekimef.weebly.com/uploads/1/3/0/7/130738874/9629454.pdfIn PDF document text
    • https://tavadubamik.weebly.com/uploads/1/3/4/4/134473349/vekokixu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386354/normal_5ff16f87238bb.pdfIn PDF document text
    • https://xonovezalewame.weebly.com/uploads/1/3/4/4/134489084/271fa.pdfIn PDF document text
    • https://nesibebinirudeb.weebly.com/uploads/1/3/5/3/135311353/1217977.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jazofi/sabupitolabagafer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb029384-bb04-4829-98b1-fd86ded4d7ce/how_to_scale_video_in_premiere.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cfc1a5c-29d5-4abb-b827-6931812e03db/line_6_spider_iv_metallica_settings.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/10100270853.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/how_do_you_get_a_royal_crown_acnh.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_off0000dbdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBDC 5916 bytes
SHA-256: f2341ee1c60f422b93d118661a4a44a002111ce22930b6b1ce52e64deb1e0d5c
font_01_sfnt_off0000ef7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF7A 12828 bytes
SHA-256: 6014b10344d7c7112cbf3f891424e1cfe3af9f0ae4c924fa09683e6ffec64931

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