Analysis
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max time kernel
113s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
03-01-2025 15:40
General
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Target
4d6a75897d1bee9ad4dbadbae18352f8bcc1173b7b5d2db2aa1485370bacd1fdN.exe
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Size
711KB
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MD5
f6772efd6e93320464fe9efd139ba4f0
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SHA1
526ff91f026e6513b79d0aaabd32ceba9808ead4
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SHA256
4d6a75897d1bee9ad4dbadbae18352f8bcc1173b7b5d2db2aa1485370bacd1fd
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SHA512
0eaef96092d4dff7052725cf29b8ddb99a2919e75de033705e525de9be5fbc2a930368728a7788211485fdc5397cf26e31e249a59471aae7eb9ad6d0f238789f
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SSDEEP
12288:umWhND9yJz+b1FcMLmp2ATTSsdsmWhND9yJz+b1FcMLmp2ATTSsdS:umUNJyJqb1FcMap2ATT5qmUNJyJqb1FB
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\4d6a75897d1bee9ad4dbadbae18352f8bcc1173b7b5d2db2aa1485370bacd1fdN.exe"C:\Users\Admin\AppData\Local\Temp\4d6a75897d1bee9ad4dbadbae18352f8bcc1173b7b5d2db2aa1485370bacd1fdN.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
711KB
MD571e04da55222f8b5f68ec281a9a86843
SHA13f4aee43c00635948e6a0a406faff67528ae3d36
SHA2560af04f8ee9d4fdd059157b7bdaa199bdfa93c90858033af64f5e572ef8289111
SHA512d77d7af7d9ffe51a791cd6d59c340c9ab8fb61ae854bfed59cc6eac7f8c647198fa61c69d0e16edc6e90168ad90e5064bd0fce258b203a99bae11f38e18086f7
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Filesize
380KB
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Filesize
672KB
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728KB
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