General
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Target
shipment document.doc
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Size
1.9MB
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Sample
210126-7z28qlcfhs
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MD5
bc7f085da0717ce2b087f9743d2663d6
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SHA1
c148128be910afd96d77afe815f8b3c6f41e4801
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SHA256
fdf939f394771c4e6a044924046b7082e87bbd2536fc2efe478bd0cc5753b2d8
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SHA512
737dded6e4ebf73f2d6948cb4e01cae47d92d178bc2f37486d65c8935a322546edb1f26c232689e09c6e77320d85999832785557554d3658b3d2844d5a9dff9c
Static task
static1
Behavioral task
behavioral1
Sample
shipment document.doc
Resource
win7v20201028
Behavioral task
behavioral2
Sample
shipment document.doc
Resource
win10v20201028
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.atulvideo.com - Port:
587 - Username:
[email protected] - Password:
WR@Q]rUZ-eQ#
Targets
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Target
shipment document.doc
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Size
1.9MB
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MD5
bc7f085da0717ce2b087f9743d2663d6
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SHA1
c148128be910afd96d77afe815f8b3c6f41e4801
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SHA256
fdf939f394771c4e6a044924046b7082e87bbd2536fc2efe478bd0cc5753b2d8
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SHA512
737dded6e4ebf73f2d6948cb4e01cae47d92d178bc2f37486d65c8935a322546edb1f26c232689e09c6e77320d85999832785557554d3658b3d2844d5a9dff9c
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload
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Blocklisted process makes network request
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Drops file in Drivers directory
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Executes dropped EXE
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Loads dropped DLL
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Reads data files stored by FTP clients
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application
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Suspicious use of SetThreadContext
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