Analysis
- max time kernel
148s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 10:49
Behavioral task
behavioral1
Sample
dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe
Resource
win11ltsc2024-20260710-en
General
- Target dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe
- Size 45KB
- Sample260804-mwpnbayamd
- SHA256 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874
- MD5 07a3c3155d970acccb2d268728ff7d5c
- SHA1 81db5a5f87caae54d175afaa6421b6faff066fd4
- SHA512 3641d8b8c2eca40b7165472b7d2cca423f0ef00732edc12588c03ea98be26b15d0deb396622e0101c305b4f5bf9d299cbfddeaba114183268e90d424d14e07f7
- SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qFCm//GgrOPIm8zjbKgX3iMDi5Qhnh5+ZAQ1EBDZUx:cu7e5TH2A2pmHb3Z3bdXSMDLh5SH1ydW
- TLSH T1AC233D003BE8822BF2BE4F7899F26145857AF6B37603D54A1CC452D74613FC69A426FE
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
asyncrat
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0.5.8
-
Default
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viet18.org:80
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viet18.org:22
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viet18.org:8080
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viet18.org:8880
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viet18.org:2052
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viet18.org:2082
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viet18.org:2086
-
viet18.org:2095
-
viet18.org:443
-
viet18.org:2053
-
viet18.org:2083
-
viet18.org:2087
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viet18.org:2096
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viet18.org:8443
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www.viet18.org:80
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www.viet18.org:22
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www.viet18.org:8080
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www.viet18.org:8880
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www.viet18.org:2052
-
www.viet18.org:2082
-
www.viet18.org:2086
-
www.viet18.org:2095
-
www.viet18.org:443
-
www.viet18.org:2053
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www.viet18.org:2083
-
www.viet18.org:2087
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www.viet18.org:2096
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www.viet18.org:8443
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ursnif.viet18.org:80
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ursnif.viet18.org:22
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ursnif.viet18.org:8080
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ursnif.viet18.org:8880
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ursnif.viet18.org:2052
-
ursnif.viet18.org:2082
-
ursnif.viet18.org:2086
-
ursnif.viet18.org:2095
-
ursnif.viet18.org:443
-
ursnif.viet18.org:2053
-
ursnif.viet18.org:2083
-
ursnif.viet18.org:2087
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ursnif.viet18.org:2096
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ursnif.viet18.org:8443
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stuxnet.viet18.org:80
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stuxnet.viet18.org:22
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stuxnet.viet18.org:8080
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stuxnet.viet18.org:8880
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stuxnet.viet18.org:2052
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stuxnet.viet18.org:2082
-
stuxnet.viet18.org:2086
-
stuxnet.viet18.org:2095
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stuxnet.viet18.org:443
-
stuxnet.viet18.org:2053
-
stuxnet.viet18.org:2083
-
stuxnet.viet18.org:2087
-
stuxnet.viet18.org:2096
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stuxnet.viet18.org:8443
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locky.viet18.org:80
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locky.viet18.org:22
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locky.viet18.org:8080
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locky.viet18.org:8880
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locky.viet18.org:2052
-
locky.viet18.org:2082
-
locky.viet18.org:2086
-
locky.viet18.org:2095
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locky.viet18.org:443
-
locky.viet18.org:2053
-
locky.viet18.org:2083
-
locky.viet18.org:2087
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locky.viet18.org:2096
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locky.viet18.org:8443
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ryuk.viet18.org:80
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ryuk.viet18.org:22
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ryuk.viet18.org:8080
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ryuk.viet18.org:8880
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ryuk.viet18.org:2052
-
ryuk.viet18.org:2082
-
ryuk.viet18.org:2086
-
ryuk.viet18.org:2095
-
ryuk.viet18.org:443
-
ryuk.viet18.org:2053
-
ryuk.viet18.org:2083
-
ryuk.viet18.org:2087
-
ryuk.viet18.org:2096
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ryuk.viet18.org:8443
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mYXWRLHH1iaH
-
delay
0
-
install
true
-
install_file
l8l5f.exe
-
install_folder
%AppData%
Signatures
- Async RAT payload 1 IoCs
resource yara_rule behavioral2/files/0x000e00000001c50d-10.dat family_asyncrat - Executes dropped EXE 2 IoCs
pid Process 240 l8l5f.exe 4880 l8l5f.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 4000 cmd.exe 4288 cmd.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language l8l5f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language l8l5f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Delays execution with timeout.exe 1 IoCs
pid Process 860 timeout.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4872 schtasks.exe - Suspicious behavior: EnumeratesProcesses 31 IoCs
pid Process 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe Token: SeDebugPrivilege 240 l8l5f.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 2252 wrote to memory of 4000 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 90 PID 2252 wrote to memory of 4288 2252 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe 92 PID 4000 wrote to memory of 4872 4000 cmd.exe 94 PID 4288 wrote to memory of 860 4288 cmd.exe 95 PID 4288 wrote to memory of 4880 4288 cmd.exe 98
Processes
-
C:\Users\Admin\AppData\Local\Temp\dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe"C:\Users\Admin\AppData\Local\Temp\dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2252 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "l8l5f" /tr '"C:\Users\Admin\AppData\Roaming\l8l5f.exe"' & exit2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4000 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "l8l5f" /tr '"C:\Users\Admin\AppData\Roaming\l8l5f.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4872
-
-
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6EDD.tmp.bat""2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4288 -
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:860
-
-
C:\Users\Admin\AppData\Roaming\l8l5f.exe"C:\Users\Admin\AppData\Roaming\l8l5f.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4880
-
-
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C:\Users\Admin\AppData\Roaming\l8l5f.exe"C:\Users\Admin\AppData\Roaming\l8l5f.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:240
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:6072
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\tmp6EDD.tmp.bat
- Size 149B
- SHA256 7bd43023d3f18d578ed91088a7518fc736733db6d7c70d08cdee07ece549e8eb
- MD5 16b553e9b696702597c86b35b45e3c05
- SHA1 e62154d94719d1d942828d61b653fcd42515b04a
- SHA512 9006d8b8f1aa068b7a17ec63cef39a858a1a73045ee5d526e8c98fb8fa75c2a34a6472ffeb56cce68bd4176ec7e19076778f57240c1cecf4799c02471eace650
- TLSH T15AC02B4351C5FA0E6807981312FBD59DE1B76C5A3F44BB00C704400D128055AF4D93C1
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Roaming\l8l5f.exe
- Size 45KB
- SHA256 dc6dbb7ff3d8d476066bec48be6e6781fad3d5a8ec9b64065504273f1df29874
- MD5 07a3c3155d970acccb2d268728ff7d5c
- SHA1 81db5a5f87caae54d175afaa6421b6faff066fd4
- SHA512 3641d8b8c2eca40b7165472b7d2cca423f0ef00732edc12588c03ea98be26b15d0deb396622e0101c305b4f5bf9d299cbfddeaba114183268e90d424d14e07f7
- SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qFCm//GgrOPIm8zjbKgX3iMDi5Qhnh5+ZAQ1EBDZUx:cu7e5TH2A2pmHb3Z3bdXSMDLh5SH1ydW
- TLSH T1AC233D003BE8822BF2BE4F7899F26145857AF6B37603D54A1CC452D74613FC69A426FE
- MD5 SHA1 SHA512 SSDEEP TLSH