Analysis
- max time kernel
6s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
- submitted
07/07/2026, 13:31
General
- Target 2b2d6f460d2d2642629d8fd0e2a17da1fed95f41ec0323d86819978a2f583077.exe
- Size 45KB
- Sample260707-qswt1aaz7x
- SHA256 2b2d6f460d2d2642629d8fd0e2a17da1fed95f41ec0323d86819978a2f583077
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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s.viet69sex.blog:80
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s.viet69sex.blog:22
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s.viet69sex.blog:8080
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s.viet69sex.blog:8880
-
s.viet69sex.blog:2052
-
s.viet69sex.blog:2082
-
s.viet69sex.blog:2086
-
s.viet69sex.blog:2095
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s.viet69sex.blog:443
-
s.viet69sex.blog:2053
-
s.viet69sex.blog:2083
-
s.viet69sex.blog:2087
-
s.viet69sex.blog:2096
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s.viet69sex.blog:8443
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www.s.viet69sex.blog:80
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www.s.viet69sex.blog:22
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www.s.viet69sex.blog:8080
-
www.s.viet69sex.blog:8880
-
www.s.viet69sex.blog:2052
-
www.s.viet69sex.blog:2082
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4cbAyDGhQt5O
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delay
0
-
install
true
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install_file
yskzwt4.exe
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install_folder
%AppData%
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 1 IoCs
- Executes dropped EXE 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Delays execution with timeout.exe 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 29 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2b2d6f460d2d2642629d8fd0e2a17da1fed95f41ec0323d86819978a2f583077.exe"C:\Users\Admin\AppData\Local\Temp\2b2d6f460d2d2642629d8fd0e2a17da1fed95f41ec0323d86819978a2f583077.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "yskzwt4" /tr '"C:\Users\Admin\AppData\Roaming\yskzwt4.exe"' & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "yskzwt4" /tr '"C:\Users\Admin\AppData\Roaming\yskzwt4.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp50E5.tmp.bat""2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\yskzwt4.exe"C:\Users\Admin\AppData\Roaming\yskzwt4.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
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C:\Users\Admin\AppData\Roaming\yskzwt4.exe"C:\Users\Admin\AppData\Roaming\yskzwt4.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Windows\system32\sihost.exesihost.exe1⤵
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C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
prep_Activatable Class_Hermes_perf.cache
tmp50E5.tmp.bat
yskzwt4.exe
memory/2264-14-0x0000000075050000-0x000000007580C000-memory.dmp
memory/2264-12-0x0000000075050000-0x000000007580C000-memory.dmp
memory/4248-67-0x0000022183CB0000-0x0000022183CD0000-memory.dmp
memory/4248-35-0x00000221801E0000-0x00000221802E0000-memory.dmp
memory/4248-81-0x0000022194330000-0x0000022194350000-memory.dmp
memory/4248-53-0x0000022193E90000-0x0000022193F90000-memory.dmp
memory/4248-52-0x0000022183C90000-0x0000022183CB0000-memory.dmp
memory/4248-37-0x00000221801E0000-0x00000221802E0000-memory.dmp
memory/4248-36-0x00000221801E0000-0x00000221802E0000-memory.dmp
memory/4400-8-0x00000000751C0000-0x000000007597C000-memory.dmp
memory/4400-3-0x00000000055B0000-0x000000000564C000-memory.dmp
memory/4400-2-0x00000000751C0000-0x000000007597C000-memory.dmp
memory/4400-1-0x0000000000AC0000-0x0000000000AD2000-memory.dmp
memory/4400-0-0x00000000751D2000-0x00000000751D3000-memory.dmp
memory/5032-193-0x000000000DF80000-0x000000000E7FB000-memory.dmp