Analysis
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max time kernel
87s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
26-03-2024 08:34
General
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Target
REX Obfuscator.exe
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Size
4.1MB
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MD5
6b5501b9e9a8ca4e53b3ea6f0d0f1db9
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SHA1
19df7d4b6aabf5d72d3ffe89e4ec130ff1001124
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SHA256
f3a45fdc397b1eec7c45664681d566cb68d36701c1f1754ddc2dcb9a439a70f8
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SHA512
3970a9e72dcaf82acf0a32c2bceb3ab2bb87614d79e893a318fbc5971f41a310911037ce5c4081aaebb7084ba9747a5d8a020ac8032fbfc8c1c1aabaf6b888a9
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SSDEEP
49152:kUUd3LmqgfVwPns0hPEwNYRjLDtAgEGiSKbKmdQxrOL79l523xLJcIF:kUUd3L9gt2h8IYRjL5AHFSKO5g9l520g
Score
10/10
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla payload 1 IoCs
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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Enumerates system info in registry 2 TTPs 3 IoCs
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Suspicious behavior: EnumeratesProcesses 27 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of FindShellTrayWindow 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\REX Obfuscator.exe"C:\Users\Admin\AppData\Local\Temp\REX Obfuscator.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4120 --field-trial-handle=2588,i,4353937220825226770,7138584070663735671,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
7.7MB
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Filesize
4.2MB
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Filesize
64KB
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Filesize
1.6MB
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Filesize
5.6MB
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Filesize
584KB
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Filesize
408KB
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Filesize
40KB
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Filesize
2.1MB
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Filesize
64KB
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Filesize
72KB
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Filesize
712KB
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Filesize
240KB
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Filesize
7.7MB
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Filesize
64KB
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Filesize
136KB
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Filesize
3.3MB
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Filesize
64KB
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Filesize
7.7MB