General
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Target
19ea5f9b3b966735e47889a09ef810a56fcf57016aa5a5acd4f0448be9faf990
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Size
385KB
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Sample
220521-dyd5xsged9
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MD5
a4345ad24121ca2a409b31185d0e302a
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SHA1
8f5df4304ccccc5ac337cfb2a541d60018de0385
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SHA256
19ea5f9b3b966735e47889a09ef810a56fcf57016aa5a5acd4f0448be9faf990
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SHA512
8649e05b85b01f2ca6338171e53b4f080e60816a75f22f3dcfe16c9c68845164cfdcccdf7dd992ee8d4881a789f00d9ffb81abb21655343f6fa9d121e65bc8ee
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.capeqlc.net - Port:
587 - Username:
[email protected] - Password:
UDzMprB6
Targets
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Target
pedido urgente pdf.exe
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Size
447KB
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MD5
4112533aec736c3972f28ed1247be1df
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SHA1
c67574ba3a5b36a3cf29ef3726ec031d55bd1c6c
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SHA256
3b090c8b614dc1e938d974aec7fd3ecbc54783b4c7ad33493dcd6a776c649c85
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SHA512
3a7ced0c397344be89cdc48b086e44cd560e866846c39dfe8b7f98bb875e09135f3b0944be3fca20fea98b20272bf56f56f66f3f1cd8a88d337543f65fc9aca7
Score10/10-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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CoreEntity .NET Packer
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
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AgentTesla Payload
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ReZer0 packer
Detects ReZer0, a packer with multiple versions used in various campaigns.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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Accesses Microsoft Outlook profiles
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Suspicious use of SetThreadContext
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