General
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Target
591f77dc27721728387a331a1eee0c84304424ac303e826574713b787ad12c9b
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Size
414KB
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Sample
220521-dfyrlsafhq
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MD5
0bace00369318bea3ad5a7d3119ce2d7
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SHA1
179fb41d445ed82b005ee970549bb833813894b9
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SHA256
591f77dc27721728387a331a1eee0c84304424ac303e826574713b787ad12c9b
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SHA512
ee4528226a9277ba9616442b22cf4fa048236bdbd95da7714c677461bf7410e21c14fc2430cb7c4321d93f746295b988fe5c84f8bba844f3d0a4316a44777274
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.karmachalets.co.in - Port:
587 - Username:
[email protected] - Password:
Akshya@123
Extracted
Protocol: smtp- Host:
mail.karmachalets.co.in - Port:
587 - Username:
[email protected] - Password:
Akshya@123
Targets
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Target
Import_GAMCX027710SYD_19MAY.exe
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Size
474KB
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MD5
0b3ec06021b9aab8ad5b86b5d9572845
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SHA1
2eab85a2d0f9fddaf519d986d24ed038c4a8bc8b
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SHA256
5832c5ab1d0aedc5c36d6f3146826dd3570c8b7c8434120dfc1972631e54f533
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SHA512
e32c49b962aa34734293d630f200d6d49c2632114102de53ab24b14270210b36df625d040c8149f59483ec351d9bd454117d37a3b425028e0c83fade45686de7
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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CoreCCC Packer
Detects CoreCCC packer used to load .NET malware.
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Looks for VirtualBox Guest Additions in registry
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ReZer0 packer
Detects ReZer0, a packer with multiple versions used in various campaigns.
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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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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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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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