Malicious PDF — malware analysis report

Static analysis result for SHA-256 90213a9cc53a0b31…

MALICIOUS

PDF

195.9 KB Created: 2021-05-28 08:28:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 5ebe54c0806486ecf262a451c13feaf6 SHA-1: 2e4747d436c00fda2c291da1fd940284a77e4acb SHA-256: 90213a9cc53a0b31fb29de664e7fa53c9c27092d3f00442e30e973317748c048
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 0.9995

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://bologen.ru/123?utm_term=valkyrie+profile+2+pcsx2 PDF link annotation
    • https://gikeviviku.weebly.com/uploads/1/3/4/7/134707445/tojajot_katimexuz_jovome.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477629/normal_606adefc23c28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418987/normal_606a9a945d5b7.pdfIn PDF document text
    • https://xoludebule.weebly.com/uploads/1/3/4/5/134526363/wisufawukemisov_daxogizokirit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402933/normal_5fd5f52f7badf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369509/normal_5fe99df13e0dd.pdfIn PDF document text
    • https://nikudedixipapun.weebly.com/uploads/1/3/4/6/134692686/94230409830c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365606/normal_6000e688cbcfa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493876/normal_5ffade111af91.pdfIn PDF document text
    • https://widawukilifuduz.weebly.com/uploads/1/3/5/3/135398171/sowamurele.pdfIn PDF document text
    • https://rufawakifored.weebly.com/uploads/1/3/1/8/131856207/4096b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412900/normal_5ffa2da3b180a.pdfIn PDF document text
    • https://ponasamexow.weebly.com/uploads/1/3/1/3/131398296/dijikevavaku-rexojogoveve.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413120/normal_602a921d72c76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366029/normal_5fd26d694ef6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403282/normal_60643a13b69cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458618/normal_605ac2b8bbf6c.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/11dd4d5f-c4b2-43fc-88a1-9c5ebd6dd37a/mejawuketikip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/098c3788-5bdd-4bf5-86c9-33b6d8820db9/11459705363.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002aa5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA5B 5340 bytes
SHA-256: c4335db20b6c3bc7595a330a9330a24b5afc2e6c8838181de32c0b79acdd3115
font_01_sfnt_off0002bcaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCAA 15292 bytes
SHA-256: 93256ee6059214a87e0b251b6a879e2f0d9b5a2365677a3dfae7555670e2ad0e
font_02_sfnt_off0002eb32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB32 16064 bytes
SHA-256: de8b42692c83bea37c6d47e1f239d2d96cd5015950f4605606731f9973e5cda4

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