Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
19/09/2026, 10:23
Behavioral task
behavioral1
Sample
2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe
Resource
win11ltsc2024-20260911-en
General
- Target 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe
- Size 45KB
- Sample260919-mesnmseb49
- SHA256 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f
- MD5 16a6cb6e25dcc8eae765bde3b78dbc6f
- SHA1 e88d994f3428786438f698502e8552d2ad1770a1
- SHA512 da8c38c64cead0aafcca0077d8ce1394db3c6839ca95a8b1227354fab7b4923afa66c9ac1c2b2f4b0535e70be9fbbaa551655fe58fbe3b9676b1958358da37b7
- SSDEEP 768:8uUIpT4vvofWWUEXb+Imo2q4zS7synzuOPIzzjbVgXKi0zGg/3ZD2yRUqxBDZ0x:8uUIpT4vAj2nSYh3z3byXz06g/L6qPd2
- TLSH T162233C0037E9C12BF2BE5F78A8F26145857AF2633603D54E1CC4529B4623FC69A52AFD
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
asyncrat
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0.5.8
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Default
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viet69no1.net:80
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viet69no1.net:22
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viet69no1.net:8080
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viet69no1.net:8880
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viet69no1.net:2052
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viet69no1.net:2082
-
viet69no1.net:2086
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viet69no1.net:2095
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viet69no1.net:443
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viet69no1.net:2053
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viet69no1.net:2083
-
viet69no1.net:2087
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viet69no1.net:2096
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viet69no1.net:8443
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www.viet69no1.net:80
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www.viet69no1.net:22
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www.viet69no1.net:8080
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www.viet69no1.net:8880
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www.viet69no1.net:2052
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www.viet69no1.net:2082
-
www.viet69no1.net:2086
-
www.viet69no1.net:2095
-
www.viet69no1.net:443
-
www.viet69no1.net:2053
-
www.viet69no1.net:2083
-
www.viet69no1.net:2087
-
www.viet69no1.net:2096
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www.viet69no1.net:8443
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connect.viet69no1.net:80
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connect.viet69no1.net:22
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connect.viet69no1.net:8080
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connect.viet69no1.net:8880
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connect.viet69no1.net:2052
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connect.viet69no1.net:2082
-
connect.viet69no1.net:2086
-
connect.viet69no1.net:2095
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connect.viet69no1.net:443
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connect.viet69no1.net:2053
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connect.viet69no1.net:2083
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connect.viet69no1.net:2087
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connect.viet69no1.net:2096
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connect.viet69no1.net:8443
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ursnif.viet69no1.net:80
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ursnif.viet69no1.net:22
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ursnif.viet69no1.net:8080
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ursnif.viet69no1.net:8880
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ursnif.viet69no1.net:2052
-
ursnif.viet69no1.net:2082
-
ursnif.viet69no1.net:2086
-
ursnif.viet69no1.net:2095
-
ursnif.viet69no1.net:443
-
ursnif.viet69no1.net:2053
-
ursnif.viet69no1.net:2083
-
ursnif.viet69no1.net:2087
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ursnif.viet69no1.net:2096
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ursnif.viet69no1.net:8443
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remcos.viet69no1.net:80
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remcos.viet69no1.net:22
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remcos.viet69no1.net:8080
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remcos.viet69no1.net:8880
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remcos.viet69no1.net:2052
-
remcos.viet69no1.net:2082
-
remcos.viet69no1.net:2086
-
remcos.viet69no1.net:2095
-
remcos.viet69no1.net:443
-
remcos.viet69no1.net:2053
-
remcos.viet69no1.net:2083
-
remcos.viet69no1.net:2087
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remcos.viet69no1.net:2096
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remcos.viet69no1.net:8443
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nanocore.viet69no1.net:80
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nanocore.viet69no1.net:22
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nanocore.viet69no1.net:8080
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nanocore.viet69no1.net:8880
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nanocore.viet69no1.net:2052
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nanocore.viet69no1.net:2082
-
nanocore.viet69no1.net:2086
-
nanocore.viet69no1.net:2095
-
nanocore.viet69no1.net:443
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nanocore.viet69no1.net:2053
-
nanocore.viet69no1.net:2083
-
nanocore.viet69no1.net:2087
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nanocore.viet69no1.net:2096
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nanocore.viet69no1.net:8443
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KPpivk0J7Svb
-
delay
0
-
install
true
-
install_file
2d4i3xo.exe
-
install_folder
%AppData%
Signatures
- Async RAT payload 1 IoCs
resource yara_rule behavioral1/files/0x000500000001da69-8.dat family_asyncrat - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-524788801-3318743092-4051225893-1000\Control Panel\International\Geo\Nation 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe - Executes dropped EXE 2 IoCs
pid Process 3904 2d4i3xo.exe 4260 2d4i3xo.exe - Outbound SSH connection to public host 2 TTPs 4 IoCs
SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.
description flow ioc pid Process SSH destination 27 172.67.184.87:22 3904 2d4i3xo.exe SSH destination 53 104.21.36.33:22 3904 2d4i3xo.exe SSH destination 88 104.21.36.33:22 3904 2d4i3xo.exe SSH destination 89 172.67.184.87:22 3904 2d4i3xo.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 5092 cmd.exe 3612 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 2d4i3xo.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2d4i3xo.exe - Delays execution with timeout.exe 1 IoCs
pid Process 968 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 3372 schtasks.exe - Suspicious behavior: EnumeratesProcesses 21 IoCs
pid Process 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe Token: SeDebugPrivilege 3904 2d4i3xo.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 1860 wrote to memory of 5092 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 89 PID 1860 wrote to memory of 3612 1860 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe 91 PID 5092 wrote to memory of 3372 5092 cmd.exe 93 PID 3612 wrote to memory of 968 3612 cmd.exe 94 PID 3612 wrote to memory of 4260 3612 cmd.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe"C:\Users\Admin\AppData\Local\Temp\2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1860 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "2d4i3xo" /tr '"C:\Users\Admin\AppData\Roaming\2d4i3xo.exe"' & exit2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5092 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "2d4i3xo" /tr '"C:\Users\Admin\AppData\Roaming\2d4i3xo.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3372
-
-
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp722D.tmp.bat""2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3612 -
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:968
-
-
C:\Users\Admin\AppData\Roaming\2d4i3xo.exe"C:\Users\Admin\AppData\Roaming\2d4i3xo.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4260
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-
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C:\Users\Admin\AppData\Roaming\2d4i3xo.exe"C:\Users\Admin\AppData\Roaming\2d4i3xo.exe"1⤵
- Executes dropped EXE
- Outbound SSH connection to public host
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3904
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\tmp722D.tmp.bat
- Size 151B
- SHA256 67667d68e5302d5c381a206eaeb63281a94a2eb0f88f56b6dab838fb5902a904
- MD5 aeb5f48a14ae287d4883db874503a1af
- SHA1 115d17f6d701123eaba111026fd109a6e347a5b1
- SHA512 7b1cbfc3305685f57fca275e6c005c2a8d04f1404803a31efbecc298565034fe17c8376b46e1933c72b77b2ce3f098345aa95847e89428cba27a4c5c0f9843f5
- TLSH T100C08C5251C5BA0F280564130ABA989C92A278193E40BF108304400D1280458F499345
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Roaming\2d4i3xo.exe
- Size 45KB
- SHA256 2a925a63375d8aae64d06cff38b8c1a6cc6adb51056c6468ec71db68129d523f
- MD5 16a6cb6e25dcc8eae765bde3b78dbc6f
- SHA1 e88d994f3428786438f698502e8552d2ad1770a1
- SHA512 da8c38c64cead0aafcca0077d8ce1394db3c6839ca95a8b1227354fab7b4923afa66c9ac1c2b2f4b0535e70be9fbbaa551655fe58fbe3b9676b1958358da37b7
- SSDEEP 768:8uUIpT4vvofWWUEXb+Imo2q4zS7synzuOPIzzjbVgXKi0zGg/3ZD2yRUqxBDZ0x:8uUIpT4vAj2nSYh3z3byXz06g/L6qPd2
- TLSH T162233C0037E9C12BF2BE5F78A8F26145857AF2633603D54E1CC4529B4623FC69A52AFD
- MD5 SHA1 SHA512 SSDEEP TLSH