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Amavaldo Indicators of Compromise

The blog post about Amavaldo "From Carnaval to Cinco de Mayo — The journey of Amavaldo" is available on WeLiveSecurity at https://www.welivesecurity.com/2019/08/01/banking-trojans-amavaldo/.

Hashes

Distribution chain 1 (targeting Brazil)

SHA-1 Filename Description ESET detection name

E0C8E11F8B271C1E40F5C184AFA427FFE99444F8

MSI downloader

VBS/TrojanDownloader.Agent.QSL trojan

12C93BB262696314123562F8A4B158074C9F6B95

NvSmartMaxApp.exe

Abused legitimate application

Clean file

6D80A959E7F52150FDA2241A4073A29085C9386B

NvSmartMax.dll

Amavaldo injector

Win32/Spy.Amavaldo.P trojan

B855D8B1BAD07D578013BDB472122E405D49ACC1

NvSmartMax

Amavaldo banking trojan

Win32/Spy.Amavaldo.N trojan

FC37AC7523CF3B4020EC46D6A47BC26957E3C054

gup.exe

Abused legitimate application

Clean file

4DBA5FE842B01B641A7228A4C8F805E4627C0012

libcurl.dll

Injector for email creation tool

Win32/Spy.Amavaldo.P trojan

9A968341C65AB47BF5C7290F3B36FCF70E9C574B

libcurl

Email creation tool

Win32/Spy.Banker.AEGH trojan

Distribution chain 2 (targeting Mexico)

SHA-1 Filename Description ESET detection name

AD1FCE0C62B532D097DACFCE149C452154D51EB0

MSI downloader

Win32/TrojanDownloader.Delf.CSG trojan

6C04499F7406E270B590374EF813C4012530273E

ctfmon.exe

Abused legitimate application

Clean file

1D56BAB28793E3AB96E390F09F02425E52E28FFC

MsCtfMonitor.dll

Amavaldo injector

Win32/Spy.Amavaldo.U trojan

B761D9216C00F5E2871DE16AE157DE13C6283B5D

MsCtfMonitor

Amavaldo banking trojan

Win32/Spy.Amavaldo.N trojan

Legitimate third-party tools used by Amavaldo downloaders

SHA-1 Filename Description ESET detection name

B191810094DD2EE6B13C0D33458FAFCD459681AE

VmDetect.exe

A tool for detecting virtual environment

Clean file

B80294261C8A1635E16E14F55A3D76889FF2C857

AICustAct.dll

A tool for checking internet connectivity

Clean file

Mutex

  • {D7F8FEDF-D9A0-4335-A619-D3BB3EEAEDDB}

Filenames

  • %LocalAppData%\%RAND%\NvSmartMax[.dll]

  • %LocalAppData%\%RAND%\MsCtfMonitor[.dll]

  • %LocalAppData%\%RAND%\libcurl[.dll]

Scheduled task names

  • GoogleBol

  • Adobe Acrobat TaskB

C&C servers

  • clausdomain.homeunix[.]com:3928

  • balacimed.mine[.]nu:3579

  • fbclinica.game-server[.]cc:3351

  • newcharlesxl.scrapping[.]cc:3844

malware-ioc/amavaldo at master · eset/malware-ioc · GitHub