Analysis
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max time kernel
120s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
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submitted
19-12-2024 01:17
General
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Target
a4b36ec5a5def2a86ff298b3c367d7c3fdb4ea5e292f0c2935897ed9b6d63477.exe
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Size
686KB
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MD5
6ccdfc62326c34cc2593ed95867c418f
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SHA1
88a8e133601f9a0b3f5ee56e18e8718d57c151d2
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SHA256
a4b36ec5a5def2a86ff298b3c367d7c3fdb4ea5e292f0c2935897ed9b6d63477
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SHA512
b8ba9baa803c36963313bba7b48c1ace9a79c5d43107d5775b71bde2966e472f0bf12c6ba2797d39fe0a75116c563bddc8b9e3d7912b1e558977c5b73f0fab28
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SSDEEP
12288:5mWhND9yJz+b1FcMLmp2ATTSsdApVHyGbs2CYPHrLpVmCbHDSgpX:5mUNJyJqb1FcMap2ATT5itjCYZ3DSoX
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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Loads dropped DLL 2 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 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a4b36ec5a5def2a86ff298b3c367d7c3fdb4ea5e292f0c2935897ed9b6d63477.exe"C:\Users\Admin\AppData\Local\Temp\a4b36ec5a5def2a86ff298b3c367d7c3fdb4ea5e292f0c2935897ed9b6d63477.exe"1⤵
- Loads dropped DLL
- 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
12KB
MD5caa300673c11a7627a7b6346e1a93b61
SHA17ecaf36f1e150c478b6cfc3446ec7f0c662c071a
SHA25642ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa
SHA512f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6
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Filesize
686KB
MD5f42cd0ffe974f2380fcd83535b4c27eb
SHA1f796534b55458d94afcca77f3dbfd7badb2c7d8f
SHA25637ee09dac6d25e2a4ca974ae4cd1622c86b3818f2ffc0a9d5aa931ff6cd1ae4d
SHA512eceb3018c87b0a6b7d2c6c3b2739b1bfa6c0852fa38e435c531fa9d2cd55b86d5dbe781444a6719bb3a1c5e5036bfba0e67461b8905469bea09c205cb0406f99
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Filesize
732KB
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Filesize
672KB
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672KB
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672KB
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672KB
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672KB
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672KB
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Filesize
728KB
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728KB
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728KB