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Analysis
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max time kernel
120s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
02/01/2025, 00:06
General
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Target
99e5651cd4df9486152f0868a4f77d97caddf89ebc3c9e1e170a9777384ab39bN.exe
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Size
355KB
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MD5
a03e9c3d53132e9d5fb94bc1f9d0e110
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SHA1
7ef9a622ef0b708d66e4e32954859629e8319010
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SHA256
99e5651cd4df9486152f0868a4f77d97caddf89ebc3c9e1e170a9777384ab39b
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SHA512
6db79038f42a80c23f9b98683785c993fdc2473e189008ea2c75ca5bbfd15cf1a5fbb65a5557617db435519ef67cfd92070f51839a47fc45e64e5ec86e638cb7
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SSDEEP
6144:Y3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiS:jmWhND9yJz+b1FcMLmp2ATTSsdS
Malware Config
Extracted
simda
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dga
gatyfus.com
lyvyxor.com
vojyqem.com
qetyfuv.com
puvyxil.com
gahyqah.com
lyryfyd.com
vocyzit.com
qegyqaq.com
purydyv.com
gacyzuz.com
lygymoj.com
vowydef.com
qexylup.com
pufymoq.com
gaqydeb.com
lyxylux.com
vofymik.com
qeqysag.com
puzylyp.com
gadyniw.com
lymysan.com
volykyc.com
qedynul.com
pumypog.com
galykes.com
lysynur.com
vonypom.com
qekykev.com
pupybul.com
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
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Simda family
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simda
Simda is an infostealer written in C++.
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Executes dropped EXE 1 IoCs
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Modifies WinLogon 2 TTPs 2 IoCs
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Drops file in Windows directory 2 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 2 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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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: RenamesItself 1 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\99e5651cd4df9486152f0868a4f77d97caddf89ebc3c9e1e170a9777384ab39bN.exe"C:\Users\Admin\AppData\Local\Temp\99e5651cd4df9486152f0868a4f77d97caddf89ebc3c9e1e170a9777384ab39bN.exe"1⤵
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\apppatch\svchost.exe"C:\Windows\apppatch\svchost.exe"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Modifies WinLogon
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
593B
MD5926512864979bc27cf187f1de3f57aff
SHA1acdeb9d6187932613c7fa08eaf28f0cd8116f4b5
SHA256b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
SHA512f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b
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Filesize
24KB
MD5550579ba45affe0825724263993d02b4
SHA1186184cb8f8c6d4ed13aa0e07ab95bf43b5209c0
SHA2563074376ebecf7d37babdc364019b2d6a0b40379051d47521a28fa61666d59f88
SHA5126d7b2fd692c304a021635a96a4367bd4a97c130b9f7e13e737049200a6599d81f30e626116dcae9194b6abf6509d1ce51692326051023037936e147209d321b9
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Filesize
355KB
MD510d554cc8dff9c0328fb869e680513e2
SHA1670f9322dff8f19efd5de0d028f8f270d2cbe504
SHA256ef779f5a6db7af3c155db041110a199640f7a3ade26db414f6a3c134e7924814
SHA512e4d9b0b827af15737df16fb3aa62f5e4eb432414c67e8f7363eee89ac1cd36f624611facad35f6dc1fb929b368ff4bd9f88f163d52f886f7c35e52853a082947
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Filesize
380KB
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Filesize
672KB
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Filesize
728KB
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728KB
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728KB