General
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Target
CaixaBank_ Documento de Pago_Pdf.iso
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Size
1.2MB
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Sample
230210-mxff2acb77
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MD5
3a690161d2dffae3c9fa92af44297ebf
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SHA1
3cd133fac221a812c5ba80b14fab68497d30d06d
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SHA256
29d212f84a154cdc5f3d9427f03113e9681dee943963a9779f466ecadab0ed40
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SHA512
b579f7fea122e28180c3ee084ac9e9133bfab4031340bcdf958a3773c66ebec5f7718a1a1456441a3161b21f351067dcc1cf09872bcab4eaffa4403342a4136d
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SSDEEP
384:LQJn8SOHLPTDeUzpNGkrdwTXCZB9i3oN6anxOPz0GwJ3TDCYt/9QylTW:Mn8rLyUfi3yLDTVW
Behavioral task
behavioral1
Sample
CAIXABAN.exe
Resource
win7-20220812-es
Behavioral task
behavioral2
Sample
CAIXABAN.exe
Resource
win10v2004-20221111-es
Malware Config
Extracted
purecrypter
http://superbtanzaniasafaris.com/zav/Qtpprpwy.bmp
Extracted
agenttesla
Protocol: smtp- Host:
mail.humanpower.vn - Port:
587 - Username:
[email protected] - Password:
xlA}CL.(Jj8C - Email To:
[email protected]
Targets
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Target
CAIXABAN.EXE
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Size
72KB
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MD5
fe3ab924e1d37874593b376966d5440f
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SHA1
9a6e8a32dbdac605421d987022f0bd12ed6fa415
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SHA256
c6f61c3603ed074cec9af4cf5b6c4f56ef5d476e4cb06e21e5c1b313128b4e0d
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SHA512
68c48f55f875dbd9781df595ffc2812b4e776a90a46d2e4ece114b079e3e0537d461f8da58947c4b9d029dfb5e3d30994861231d8e7280fc807a31e160dade0e
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SSDEEP
384:o8SOHLPTDeUzpNGkrdwTXCZB9i3oN6anxOPz0GwJ3TDCYt/9QylTW:o8rLyUfi3yLDTVW
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Accesses Microsoft Outlook profiles
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Adds Run key to start application
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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