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Analysis
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max time kernel
110s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
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submitted
21/01/2025, 12:09
General
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Target
a4723cb3c1191d1ccbe3feaa0cd8a998f90bb8a2638ade07977b1778f2128f09N.exe
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Size
208KB
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MD5
efe92c3be8c2519593474dedd7726500
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SHA1
4784cebb3a906ee25f4ac5d07ad51c5a559df13c
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SHA256
a4723cb3c1191d1ccbe3feaa0cd8a998f90bb8a2638ade07977b1778f2128f09
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SHA512
5249d08850ad07c3e785a91799b265235646f0a6d7c2a4ee071e85d286815d94968b3b8a9063b0e572793c41e2a4ad5b3a19135a74fc1c2b78c7aa222817fbe9
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SSDEEP
6144:Ua1oB/yvpK0JCmRcRRR8N0e2kXfCqNidkfkw:UbapK0JCmRcU9vVokfD
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 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 53 IoCs
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Suspicious behavior: RenamesItself 1 IoCs
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Suspicious use of WriteProcessMemory 7 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a4723cb3c1191d1ccbe3feaa0cd8a998f90bb8a2638ade07977b1778f2128f09N.exe"C:\Users\Admin\AppData\Local\Temp\a4723cb3c1191d1ccbe3feaa0cd8a998f90bb8a2638ade07977b1778f2128f09N.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
24KB
MD57a6173aae5565893791816605ebb2595
SHA12033ae20267dc5c68a22c79e1e75eab7ba7658a3
SHA2564750cc859d45b15e342621418e331ca3562aea1430d28508b1117bc8211a3b5f
SHA512904d36676a8c73f38d4fe1430a8989c05d4a41fec337d86fce882895ed1f15f6ffab601c7b01c9e3cddece18961fe2e389a574ea735a5e041be84b6264cf559b
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Filesize
42KB
MD575af8637a19e9bcf7237eb3d343aaa43
SHA11822cc04ad0a7ffdcb71dcc1ace7677d488707b1
SHA25643ed50a32e797d0b59807c912d624c02a2cd51d8e25cff6bf60c423857f9e6b3
SHA5125a603ffbdd00071a04d4b25f4f4971db5ee3f3e9a9d67d5a39a4867d5343821c758c821d1487a387e8b698102ea2235d51c108dda33be106d7bdcc81c6585846
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Filesize
208KB
MD5d6ff06e32678bf4a120683f5e97a2ea1
SHA1d7eacb85225567e4bf448ceafa7da474a0366b9b
SHA256dfdf6b38afeb1f2643d35ef1b25aac42103d4b3ada0b4787bab8cf7ce288cb1c
SHA51243e9141a8d5346a23813a161f72287c4e6e046c0565172f27879a4a670c3d13429cd5cb1a43e8b2c0f3a145ced61c3e16b0d13ac1916f40462e7374ef82acc21
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Filesize
728KB
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Filesize
728KB
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Filesize
412KB
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Filesize
412KB
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Filesize
672KB
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Filesize
412KB
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Filesize
672KB
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Filesize
672KB
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Filesize
672KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
672KB
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Filesize
672KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
728KB
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Filesize
380KB
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Filesize
12KB
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Filesize
380KB
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Filesize
12KB
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Filesize
412KB