General
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Target
yu6NsfbmMAuL173.exe
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Size
575KB
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Sample
210222-qsc6wczvks
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MD5
a61eb173cdeb421cabc0d95adb600417
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SHA1
a4ca2077b7195c6e9cbcfe932275840b7a03e016
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SHA256
a5117eb684d040eb8b71762d4bf70e8e1aa0bb3b228246f5141a3beb4cdf0463
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SHA512
2863d9aac1532310c7ad17465c836124380a3ff29bf5af27b21f165c271462152541f2ca66a02f86b8a4cbc65c73499d4850023c740fbc8b542ad4462451b4a3
Static task
static1
Behavioral task
behavioral1
Sample
yu6NsfbmMAuL173.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
yu6NsfbmMAuL173.exe
Resource
win10v20201028
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.shahdowlla-fashions.com - Port:
587 - Username:
arif@shahdowlla-fashions.com - Password:
PAss@2018
Targets
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Target
yu6NsfbmMAuL173.exe
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Size
575KB
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MD5
a61eb173cdeb421cabc0d95adb600417
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SHA1
a4ca2077b7195c6e9cbcfe932275840b7a03e016
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SHA256
a5117eb684d040eb8b71762d4bf70e8e1aa0bb3b228246f5141a3beb4cdf0463
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SHA512
2863d9aac1532310c7ad17465c836124380a3ff29bf5af27b21f165c271462152541f2ca66a02f86b8a4cbc65c73499d4850023c740fbc8b542ad4462451b4a3
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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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Looks for VirtualBox Guest Additions in registry
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Looks for VMWare Tools registry key
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Suspicious use of SetThreadContext
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