General
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Target
khcjryw.exe
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Size
294KB
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Sample
200713-jae7yrpf5s
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MD5
e3516cf406d891902c553d6a43efdc65
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SHA1
435d7a53989670d50578c9aff2b334187222088e
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SHA256
702e54b967e1c8aedcdfea2306b429b15e284b9b88439c9636182a36322e179b
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SHA512
1454b39a6a9ccea31c5a682baec84d42668a9787e66d4eda2df0a74b5d47a928b814bda29a51fe3374c3f315d07fcaa50df0d926e8c5ee6bd8f521ba2d068d92
Static task
static1
Behavioral task
behavioral1
Sample
khcjryw.exe
Resource
win7
Behavioral task
behavioral2
Sample
khcjryw.exe
Resource
win10v200430
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.skibokshotell.no/ - Port:
21 - Username:
[email protected] - Password:
u{psFslG@7Ly
Protocol: ftp- Host:
ftp://ftp.skibokshotell.no/ - Port:
21 - Username:
[email protected] - Password:
u{psFslG@7Ly
Targets
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Target
khcjryw.exe
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Size
294KB
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MD5
e3516cf406d891902c553d6a43efdc65
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SHA1
435d7a53989670d50578c9aff2b334187222088e
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SHA256
702e54b967e1c8aedcdfea2306b429b15e284b9b88439c9636182a36322e179b
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SHA512
1454b39a6a9ccea31c5a682baec84d42668a9787e66d4eda2df0a74b5d47a928b814bda29a51fe3374c3f315d07fcaa50df0d926e8c5ee6bd8f521ba2d068d92
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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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Drops file in Drivers directory
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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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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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