Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
07/07/2026, 13:31
Behavioral task
behavioral1
Sample
90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe
Resource
win11ltsc2024-20260706-en
General
- Target 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe
- Size 45KB
- Sample260707-qshblsf14k
- SHA256 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc
- MD5 70b67ff9b54ae7d16dd3128020c1a44a
- SHA1 7de53be92c73538fdba811332a5b7255e2240b45
- SHA512 800922ab7547ef8cc05cbdff5a4379284014f8299d6fc699c502201e3606ce04f8dc8ab151c0a86d06cb0e96f14ffb01235e89d5b8a16cd7aecc567adb348965
- SSDEEP 768:Iu5KkpTsU6Q8WU+xjamo2q1C/qpG3jHuPIgzjbvgX6iw84Fyyg+E+4i+20BDZLx:Iu5KkpTsx/2/IM3g3bYXDKF/XJCdLx
- TLSH T1DF232A0037E9862BF2BE4F7899F26105867AF5636603D6892CC451DB5723FC28A426FD
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
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vlxxzz.net:80
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vlxxzz.net:22
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vlxxzz.net:8080
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vlxxzz.net:8880
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vlxxzz.net:2052
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vlxxzz.net:2082
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vlxxzz.net:2086
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vlxxzz.net:2095
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vlxxzz.net:443
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vlxxzz.net:2053
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vlxxzz.net:2083
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vlxxzz.net:2087
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vlxxzz.net:2096
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vlxxzz.net:8443
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www.vlxxzz.net:80
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www.vlxxzz.net:22
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www.vlxxzz.net:8080
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www.vlxxzz.net:8880
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www.vlxxzz.net:2052
-
www.vlxxzz.net:2082
-
www.vlxxzz.net:2086
-
www.vlxxzz.net:2095
-
www.vlxxzz.net:443
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www.vlxxzz.net:2053
-
www.vlxxzz.net:2083
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www.vlxxzz.net:2087
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www.vlxxzz.net:2096
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www.vlxxzz.net:8443
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sasser.vlxxzz.net:80
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sasser.vlxxzz.net:22
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sasser.vlxxzz.net:8080
-
sasser.vlxxzz.net:8880
-
sasser.vlxxzz.net:2052
-
sasser.vlxxzz.net:2082
-
sasser.vlxxzz.net:2086
-
sasser.vlxxzz.net:2095
-
sasser.vlxxzz.net:443
-
sasser.vlxxzz.net:2053
-
sasser.vlxxzz.net:2083
-
sasser.vlxxzz.net:2087
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sasser.vlxxzz.net:2096
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sasser.vlxxzz.net:8443
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cl0p.vlxxzz.net:80
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cl0p.vlxxzz.net:22
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cl0p.vlxxzz.net:8080
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cl0p.vlxxzz.net:8880
-
cl0p.vlxxzz.net:2052
-
cl0p.vlxxzz.net:2082
-
cl0p.vlxxzz.net:2086
-
cl0p.vlxxzz.net:2095
-
cl0p.vlxxzz.net:443
-
cl0p.vlxxzz.net:2053
-
cl0p.vlxxzz.net:2083
-
cl0p.vlxxzz.net:2087
-
cl0p.vlxxzz.net:2096
-
cl0p.vlxxzz.net:8443
-
ln2NW8JdSYvh
-
delay
0
-
install
true
-
install_file
u21p8hdq.exe
-
install_folder
%AppData%
Signatures
- Async RAT payload 2 IoCs
resource yara_rule behavioral1/files/0x00080000000243a1-8.dat family_asyncrat behavioral1/memory/1012-10-0x00000000054E0000-0x00000000054F0000-memory.dmp 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-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe - Executes dropped EXE 2 IoCs
pid Process 1012 u21p8hdq.exe 3340 u21p8hdq.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language u21p8hdq.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language u21p8hdq.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.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 schtasks.exe - Delays execution with timeout.exe 1 IoCs
pid Process 2516 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 1924 schtasks.exe - Suspicious behavior: EnumeratesProcesses 23 IoCs
pid Process 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe Token: SeDebugPrivilege 1012 u21p8hdq.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 904 wrote to memory of 2436 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 86 PID 904 wrote to memory of 4652 904 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe 88 PID 2436 wrote to memory of 1924 2436 cmd.exe 90 PID 4652 wrote to memory of 2516 4652 cmd.exe 91 PID 4652 wrote to memory of 3340 4652 cmd.exe 98
Processes
-
C:\Users\Admin\AppData\Local\Temp\90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe"C:\Users\Admin\AppData\Local\Temp\90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:904 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "u21p8hdq" /tr '"C:\Users\Admin\AppData\Roaming\u21p8hdq.exe"' & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2436 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "u21p8hdq" /tr '"C:\Users\Admin\AppData\Roaming\u21p8hdq.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1924
-
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4C56.tmp.bat""2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4652 -
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:2516
-
-
C:\Users\Admin\AppData\Roaming\u21p8hdq.exe"C:\Users\Admin\AppData\Roaming\u21p8hdq.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3340
-
-
-
C:\Users\Admin\AppData\Roaming\u21p8hdq.exe"C:\Users\Admin\AppData\Roaming\u21p8hdq.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1012
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\tmp4C56.tmp.bat
- Size 152B
- SHA256 8a037ea71a56b11f46134c187be2221c99e96fe1c7f8fe0861057ca09e2f73af
- MD5 191a1ba9c0f0faa5dcb98645e52a4611
- SHA1 3a1b77eb35c4f3f2ee7b656fdf45a04a1e0948d6
- SHA512 0dce499ee7a8cd10fabed879c0452f0164e0844fd5574cef9d78d7e211e4d0a91d62ff3e8107c84a9749b3755cd2f0875b196d7272a83b51f4f2c4e98934edc1
- TLSH T10BC08C8265C5EA0E6905741303FAE48D91B2AC693E84BB20CB44845922C8458E099281
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Roaming\u21p8hdq.exe
- Size 45KB
- SHA256 90285995e22cec59de7a87fc32e373c2b1a68ffa37f13b06f2f759f3a0657dcc
- MD5 70b67ff9b54ae7d16dd3128020c1a44a
- SHA1 7de53be92c73538fdba811332a5b7255e2240b45
- SHA512 800922ab7547ef8cc05cbdff5a4379284014f8299d6fc699c502201e3606ce04f8dc8ab151c0a86d06cb0e96f14ffb01235e89d5b8a16cd7aecc567adb348965
- SSDEEP 768:Iu5KkpTsU6Q8WU+xjamo2q1C/qpG3jHuPIgzjbvgX6iw84Fyyg+E+4i+20BDZLx:Iu5KkpTsx/2/IM3g3bYXDKF/XJCdLx
- TLSH T1DF232A0037E9862BF2BE4F7899F26105867AF5636603D6892CC451DB5723FC28A426FD
- MD5 SHA1 SHA512 SSDEEP TLSH