Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
17/02/2025, 05:13
General
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Target
b40f986012577d6375de12a0eceb69292c455b4ca8706f161e96e7edd1e6090e.exe
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Size
686KB
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MD5
4e4f7eeee0f4c32360cac9e25c144b12
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SHA1
b09e055538189f30165c99cfa7318cbce59dd134
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SHA256
b40f986012577d6375de12a0eceb69292c455b4ca8706f161e96e7edd1e6090e
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SHA512
50be96b815a4c28e6cf22efa64a3edb5865329ec9cd546a369491da7bcaaffafce37d1d3d3f38117d5b79cc3ae48c385644cebbfb124a7326b593dd17a1a07ab
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SSDEEP
12288:RmWhND9yJz+b1FcMLmp2ATTSsdApVHyGbs2CYPHrLpVmCbHDSgp:RmUNJyJqb1FcMap2ATT5itjCYZ3DSo
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\b40f986012577d6375de12a0eceb69292c455b4ca8706f161e96e7edd1e6090e.exe"C:\Users\Admin\AppData\Local\Temp\b40f986012577d6375de12a0eceb69292c455b4ca8706f161e96e7edd1e6090e.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
Loading Replay Monitor...
Downloads
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Filesize
593B
MD5926512864979bc27cf187f1de3f57aff
SHA1acdeb9d6187932613c7fa08eaf28f0cd8116f4b5
SHA256b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
SHA512f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b
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Filesize
481B
MD5419089978a8e8375d6663fa660b9c73a
SHA1b2b2cda0d5bb516ee5e1ba2ecbe6ed586d5feaee
SHA256608f9f411167361023113621d1e1b407854cee0bb95c3d48c4c625694f7015b0
SHA51287e3a5b71fc15ab816006b5a3b802109f0427cc182a9c68f3c653cbdf164be22fb2404cf6854f99cd91a59e5b9bb635619603a7f8bd9e4d6031647fa91a4b7bd
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Filesize
686KB
MD54a51a680eb8540add1d61b75d5179fed
SHA197b2719ae55714c116697af489e4bdaccbdfbd73
SHA2561fde61fce001b511d86836b8c9353f20bb9bdf17db1d153af9fcf75761000bd1
SHA512b8b60dcb68f65677a0443a9cc057ff0292481f34d19a7ad7b9b1a2306a8436f4deeed393e283778dde72d50d283e26816da18a17f863ac8a66fce084d3539733
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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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728KB
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728KB
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728KB
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Filesize
732KB