Malicious PDF — malware analysis report

Static analysis result for SHA-256 bff7d59a97e5ef3a…

MALICIOUS

PDF

70.7 KB Created: 2022-05-17 04:24:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: ba9c2a8ed2a9c862748fe3c72c4c5660 SHA-1: 62d0828eea48a1e8202fc031427327e076d83b91 SHA-256: bff7d59a97e5ef3a6da58e93aab1ad4514e3d45609c37f73af0f36968f88aef7
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains embedded JavaScript and external URIs, indicating a malicious intent to redirect users to potentially harmful content. The ML classifier and ClamAV detection strongly suggest this is a phishing or malware distribution attempt. The primary IOC is the embedded URL which likely serves as a lure for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://tevav.co.za/YmrXLWy8?keyword=cdisc%20sdtm%20implementation%20guide%203.%203%20pdf%20file%20download%202017
    • http://net-work.cz/data/file/89454903538.pdf
    • https://urbanlivin.lu/userfiles/files/72583739578.pdf
    • http://callbells.com.ua/kcfinder/upload/files/74773669851.pdf
    • https://toscanafantastica.com/userfiles/file/kufarodixegoxoxuxujazon.pdf
    • http://omorits.jp/uploads/files/34753504073.pdf
    • https://gedayapi.com/userfiles/file/niduwexunupegunegerikozaz.pdf
    • https://rovividupezudu.weebly.com/uploads/1/3/4/3/134373795/nubajetozajaxoxobew.pdf
    • https://trungtamchonggia.ttchg.com/kcfinder/upload/files/fodaxixanajinejijenofujas.pdf
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16224341ca4e56---21067500758.pdf
    • http://conservativista.com/js/ckfinder/userfiles/files/sigedelanipexisise.pdf
    • https://disemorabegelam.weebly.com/uploads/1/3/1/3/131383982/vuriseliremetaxa.pdf
    • http://tnet.site/kcfinder/upload/files/22520226501.pdf
    • http://av72-reklama.ru/userfiles/file/16516110071fbba2303ff5a22e8c75.pdf
    • http://sieuthivatlieuhoanthien.com/upload/files/pixuxisuferowuluzimike.pdf
    • https://panegovernance.com/ourprojects/chowki/UserFiles/file/57095493107.pdf
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623d0c20851e9---52322953732.pdf
    • https://mudatikijamowa.weebly.com/uploads/1/3/1/4/131408537/f9b1ff3.pdf
    • https://lirowutezi.weebly.com/uploads/1/3/4/6/134696369/f0fec3b40cb.pdf
    • http://kanizsakran.hu/userfiles/file/29195469008.pdf
    • https://janelexireretof.weebly.com/uploads/1/3/4/6/134630470/4780378.pdf
    • https://sydneystudytour.com/accounting/userfiles/file/17006153744.pdf
    • 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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ac68.bin
fbea1f9d5a8b9207fbd81988bffcf376ec1668d763b11546c12e62b24e9b48a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC68 16936 bytes
font_01_sfnt_off0000d841.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD841 16792 bytes
font_02_sfnt_off0000f058.bin
44b9161b63adc668a24c3f458bfa61588c31d4c63a9f31b1d82530aae180ab2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF058 11660 bytes

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