Malicious PDF — malware analysis report

Static analysis result for SHA-256 274de7f4d07e2b1f…

MALICIOUS

PDF

81.6 KB Created: 2021-04-02 16:37:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5677b290bdf2335a929ba077c8bc439a SHA-1: 4547d1816af9d7e322816e7a9e8b8f5791b4334e SHA-256: 274de7f4d07e2b1ff07a2fa3cab404ed3b7cd871a359a83eaf7bf2163fea3673
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristic 'PDF_SEO_LINK_FARM' suggests the document contains a large number of external links, likely designed to redirect users to malicious sites for phishing or malware distribution. The embedded URLs, such as 'https://soxebez.ru/aws?utm_term=madonna+sex+book+1992' and 'http://realwockyc.info/bufutimupaditajagqfz.pdf', are key indicators of this malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 6

  • PRC/3D content in PDF medium CVE related PDF_PRC_3D
    PDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://soxebez.ru/aws?utm_term=madonna+sex+book+1992
    • http://realwockyc.info/bufutimupaditajagqfz.pdf
    • http://martakkord.ru/5018920362428mb8.pdf
    • https://balesiloruj.weebly.com/uploads/1/3/4/6/134671801/wenepasegalavup-liwese-wamutav-vozolonir.pdf
    • https://gobodukigibab.weebly.com/uploads/1/3/1/8/131856162/janox-tugekizitamel-fuvukox-wewukexegukax.pdf
    • https://cdn.sqhk.co/xolovagi/bT7LBgj/fuwedupap.pdf
    • https://cdn.sqhk.co/voromerubagu/ihgyhaD/sapuvitis.pdf
    • https://cdn.sqhk.co/matikefateri/cjdeS5m/nanunajowudu.pdf
    • http://vas-rem.ru/esl_playoffs_dotah8cnj.pdf
    • https://nefolebar.weebly.com/uploads/1/3/4/4/134400051/8976d23f6fbc53.pdf
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/sisuman_tutaxi_woxej.pdf
    • https://gapotijaj.weebly.com/uploads/1/3/1/3/131383657/9840660.pdf
    • https://cdn.sqhk.co/fovipobex/sgjidSX/x_core_galactic_plague_strategy_guide.pdf
    • http://service-hire.com/university_of_southern_california_business_analytics_gre_scorewgmsn.pdf
    • https://cdn.sqhk.co/pizuremo/ihjZaih/rapilukivex.pdf
    • https://tubadelemifevit.weebly.com/uploads/1/3/4/5/134509228/5999374.pdf
    • https://vavaxurose.weebly.com/uploads/1/3/0/7/130775274/f3aca5ec.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://monudoxufanexax.rf.gd/zirijolazefasuwudimebanej.pdf
    • https://627ea4a7-3f28-4bf3-8c99-6a9da7dacf48.filesusr.com/ugd/1970e2_eb4e57e5986049cd9806bd5106825cc5.pdf?index=true
    • https://18b09f4e-de4d-4c1b-9fe6-be55c63b1c00.filesusr.com/ugd/cd81e9_f9b3890b775a4375a95fd7573851d7ea.pdf?index=true
    • https://30cc9e9c-6145-4029-bfdc-d0561bdb3a10.filesusr.com/ugd/0dcf4b_34f443a6a0e44d569baed1bd091600b5.pdf?index=true
    • https://4590046d-f0a9-4171-b8a0-56ff8c1fe63c.filesusr.com/ugd/0bfb20_27e13db78bac4a228820a667680ddd6e.pdf?index=true
    • http://xegukamadoso.epizy.com/37143103808.pdf
    • https://4541bc1c-e35c-4de3-bb44-1f53c3e1a56d.filesusr.com/ugd/68f66e_c2a89b66375d4048a9bbe2de8eddc85d.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc60.bin
4259ac0128321a27845dab29113f456077a24b8ec052637a8904f4b6cab8b76a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC60 5308 bytes
font_01_sfnt_off00010e90.bin
88a45219d69589e670cb63935e9b4488810ec421f3bdbe75291a53aa5f7a8d3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E90 12832 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.