Analysis
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max time kernel
111s -
max time network
116s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
31-12-2024 20:13
General
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Target
b737b2eb2bffb228fd5042f26da27b37a339f84aaee49cea24f5ed12533536ac.exe
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Size
208KB
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MD5
61d32c671062eb10360b01902f74d09f
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SHA1
18fe5c7938d20335aa08a17491a135daa7e47c2c
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SHA256
b737b2eb2bffb228fd5042f26da27b37a339f84aaee49cea24f5ed12533536ac
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SHA512
f3279655907da46213656661eec9334da85468976bbab9c11f4691e03b3ecaab763053213972a568caea174951acddba68bddfb8b4fd5119168088a79bac88f8
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SSDEEP
6144:pa1oB/yvpK0JCmRcRRR8N0e2kXfCqNidkfkQ:pbapK0JCmRcU9vVokfr
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\b737b2eb2bffb228fd5042f26da27b37a339f84aaee49cea24f5ed12533536ac.exe"C:\Users\Admin\AppData\Local\Temp\b737b2eb2bffb228fd5042f26da27b37a339f84aaee49cea24f5ed12533536ac.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
Loading Replay Monitor...
Downloads
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Filesize
208KB
MD5b8bc4c90b678699f437c1841b22a9613
SHA1160b33d543e35956ab8031ed1d294f820a44d10f
SHA25651d945403415b1299744688854f9af5771e39b96f0f0dfb85a8685985b380ffe
SHA512706162f6b779b2b246001895db5ce818237a09ff737949fc7dd8414fc48f41eab08ca98234bc0d1ed9a6a86da4441413695ecbeabbd13de5a8ee0d762af6ed93
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Filesize
728KB
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Filesize
728KB
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728KB
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728KB
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728KB
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728KB
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Filesize
672KB
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Filesize
412KB
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728KB
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728KB
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412KB
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728KB
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412KB
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728KB
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Filesize
380KB
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Filesize
12KB
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Filesize
412KB
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Filesize
380KB
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Filesize
12KB