Malicious PDF — malware analysis report

Static analysis result for SHA-256 23501f5021ee1c5f…

MALICIOUS

PDF

85.2 KB Created: 2021-03-14 22:47:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b0fc6947333c1f973c696aa9ad6179c4 SHA-1: 233449fd026799e96567cdd71cb80cd4fd4f568a SHA-256: 23501f5021ee1c5f59bb70439e784c9ed19cace160ea6aaf008851a51c57f63d
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 0.9985

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://nipisod.ru/award?keyword=exerc%25C3%25ADcios+sobre+g%25C3%25AAneros+liter%25C3%25A1rios+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4459318/normal_6025ca16b956a.pdfIn PDF document text
    • http://nijewogifuzazi.mypressonline.com/2nd_great_awakening_apush_definition.pdfIn PDF document text
    • http://ig-mediateam.net/sports_illustrated_cover_2020_56_years_oldmsot9.pdfIn PDF document text
    • http://freefire-gifts.com/positive_mind_techniquesy38q3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385413/normal_5fd632c11f879.pdfIn PDF document text
    • http://digitaloffice24.ru/sinodelepitudonilukuej5mw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426072/normal_6016cbdab76ac.pdfIn PDF document text
    • http://stalekost.site/51480433445xkfht.pdfIn PDF document text
    • http://femonejigajape.mywebcommunity.org/22969572285.pdfIn PDF document text
    • http://mavpa.fun/wevukagekue20vo.pdfIn PDF document text
    • http://menformula.xyz/zitur3yj3v.pdfIn PDF document text
    • http://hermidkovo.info/javafx_for_dummiesvg8lu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405642/normal_600270efdda40.pdfIn PDF document text
    • http://palaxofivuleduj.medianewsonline.com/15804192580.pdfIn PDF document text
    • http://waverufusufafuv.scienceontheweb.net/rosefijimejuvufaxalud.pdfIn PDF document text
    • http://ourfanz.com/takovodojerut7fl.pdfIn PDF document text
    • http://dusipoweg.mywebcommunity.org/23231669885.pdfIn PDF document text
    • http://katipef.medianewsonline.com/fred_factory_orders.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/pexodugosa/bioscope_apk_latest_version.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/kinujiripokopemeb.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/subway_map_nyc.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/65883030846.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/business_plan_template_for_agricultural_machinery.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 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f10e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10E 3396 bytes
SHA-256: 019ae317c1ae45cf80e7afb453b05714fcc380a874e5f543d71113ea1553695c
font_01_sfnt_off0000fd35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD35 5504 bytes
SHA-256: 529552781bc615c71f89e3cc1c9304ad25ce763e38fe831691658fae5c14ef8b
font_02_sfnt_off00010fae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FAE 12596 bytes
SHA-256: 5eb05ce9906fb3f33870c0a9bf520be6de20d430c0c90fd2f5501aec2a9c9295
font_03_sfnt_off00013695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13695 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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