Analysis
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max time kernel
96s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
08-01-2025 15:09
General
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Target
LB3.exe
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Size
147KB
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MD5
0b6da3700a1bf266d6d2bbf27fd23165
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SHA1
f64c2ebf3892e2d498f23b9a7886f67ebbbb2f28
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SHA256
4f1c9befcc873120533559c6915aaafd34497eba94d840db4ed28ceba2ebcd49
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SHA512
d39d6c9fa03ea2ed2c5aebf9f8811c1b3f3fca2092a8e25d980e8c0ab624d864d841bca9673c7fa843b44204d4f7fbcf1fcfe4fe3678e66a854ddfbf67240cce
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SSDEEP
3072:t6glyuxE4GsUPnliByocWep4dd1fL5B594:t6gDBGpvEByocWeAfFn9
Malware Config
Extracted
C:\MWlosDcWa.README.txt
https://tox.chat/download.html
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Deletes itself 1 IoCs
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Executes dropped EXE 1 IoCs
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 2 IoCs
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Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Drops file in System32 directory 4 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Checks processor information in registry 2 TTPs 3 IoCs
Processor 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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Opens file in notepad (likely ransom note) 1 IoCs
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Suspicious behavior: AddClipboardFormatListener 2 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: RenamesItself 26 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of SetWindowsHookEx 14 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\LB3.exe"C:\Users\Admin\AppData\Local\Temp\LB3.exe"1⤵
- Drops desktop.ini file(s)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
- Drops file in System32 directory
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C:\ProgramData\E168.tmp"C:\ProgramData\E168.tmp"2⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\E168.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵
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C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{31AB9A91-9476-4377-BC3E-EC8787E25B2D}.xps" 1338082256334300002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\MWlosDcWa.README.txt1⤵
- Opens file in notepad (likely ransom note)
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD52a6d511943726f35b30f789dc12988be
SHA14adc33aba1bf80d37acfcee944189ebb1f479810
SHA2563b55238e8ad9147086ef92e268af5dd48226f60b91ee6ee8e5bf95db11e3f3b8
SHA51272260d1bdb7890a52281f9e4ca0ddbd5141d4bf56a1105547b0aeaa6129aefab18ff2dc557af7aaebd5969795caa8c9d521ca9406160ff41e2563675aecbc323
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Filesize
1KB
MD50fc102c3422c21c1aadfaa1a656dc970
SHA149cc540c7a5eaa4f12cacdb21e788335d535ccc0
SHA256fe49a063ebe0b4154321062c1110876bab03710ab367d8a5e3dee6e75fc79029
SHA5128cf822ec2d69b4f4bfdc3303b142ff21315d6e5483a98efa834d039f68a6f57e249d374d3c127a65f524123464532afa5700b4dd4808236b082f7a420a260ab0
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
147KB
MD5a9ffce2d7cab6361dfbb4e28a2fa1516
SHA12c072aec898d20712229fd7781c51c42a9e85039
SHA2566e663fea0c890af3371af5c5b695febdb834eb47b76b2c4979be2cb30fee4757
SHA512ebbe0891d9224df92c533b45fc856d6b87b18b1f4b0f70f9ec05b0d5b5291c6462d9398bfcc494338ef2adbf06a56c1f22fcec61ba4dbb6738fefb435e839480
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Filesize
4KB
MD5814c59b808abd1ad21d7befdbdeee5b9
SHA1de73764a4508ed597a0f723b588e543f63daffd9
SHA25666c6c48312cac2f0c88a5ad9c3d93cda02ae0d752d950e47f5d672d7a8a9da6a
SHA512cfbb752c7dd777bf03f66b68222aabbd4b76208664a41a306e4fdcf7f56fda2c5053f104621d783e3ca5c74eda59b5eebb490c8fef3c7fa21a2639e53c40491b
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Filesize
129B
MD5f8324bb6c3a926d215ca9c0aad86805f
SHA111dba7867eb6140567b93386367ff4613b0f342d
SHA256f373a5f2f658927dcbba77fa5e319200292070a200392d1526045ef1b85bddd2
SHA512662f42493b9d4f6331f6deefaa5627dd7c7ccbb796ec336969e5567c745d56c4307829173de2e319792ae12fda6b3d21217d0c7b2de6e155761baa94877ae26b
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
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Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB