Analysis
- max time kernel
148s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
08/01/2025, 04:32
General
- Target 91c8584cfea584eafc34c1cc68383e691aa190b5c6a85433236cce1fff96e4c5.exe
- Size 204KB
- Sample250108-e55rwstqgz
- SHA256 91c8584cfea584eafc34c1cc68383e691aa190b5c6a85433236cce1fff96e4c5
Malware Config
Extracted
-
simda
-
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
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- Simda family
- simda
Simda is an infostealer written in C++.
- Executes dropped EXE 1 IoCs
- Modifies WinLogon 2 TTPs 2 IoCs
- Drops file in Windows directory 2 IoCs
- 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.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\91c8584cfea584eafc34c1cc68383e691aa190b5c6a85433236cce1fff96e4c5.exe"C:\Users\Admin\AppData\Local\Temp\91c8584cfea584eafc34c1cc68383e691aa190b5c6a85433236cce1fff96e4c5.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
-
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
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
login[1].htm
78D4.tmp
85CF.tmp
865D.tmp
865D.tmp
svchost.exe
memory/3596-0-0x0000000000400000-0x000000000057D000-memory.dmp
memory/3596-1-0x0000000002300000-0x0000000002351000-memory.dmp
memory/3596-2-0x0000000000400000-0x000000000045F000-memory.dmp
memory/3596-14-0x0000000000400000-0x000000000057D000-memory.dmp
memory/3596-16-0x0000000000400000-0x000000000045F000-memory.dmp
memory/3596-15-0x0000000002300000-0x0000000002351000-memory.dmp
memory/4164-59-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-51-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-22-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-24-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-43-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-45-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-79-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-78-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-77-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-76-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-74-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-73-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-72-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-71-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-70-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-69-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-68-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-67-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-66-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-65-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-64-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-63-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-62-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-61-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-19-0x0000000000400000-0x000000000057D000-memory.dmp
memory/4164-58-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-56-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-55-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-54-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-53-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-52-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-20-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-50-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-48-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-47-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-46-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-44-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-42-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-41-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-40-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-39-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-38-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-37-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-36-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-35-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-34-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-30-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-32-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-31-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-29-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-28-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-27-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-26-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-75-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-60-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-57-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-49-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-33-0x0000000002CF0000-0x0000000002DA6000-memory.dmp
memory/4164-18-0x0000000002B40000-0x0000000002BE8000-memory.dmp
memory/4164-17-0x0000000000400000-0x000000000057D000-memory.dmp
memory/4164-13-0x0000000000400000-0x000000000057D000-memory.dmp
memory/4164-12-0x0000000000400000-0x000000000057D000-memory.dmp
memory/4164-25-0x0000000002CF0000-0x0000000002DA6000-memory.dmp