Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
11/05/2026, 02:17
Behavioral task
behavioral1
Sample
AsyncRat.exe
Resource
win10v2004-20260130-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
AsyncRat.exe
Resource
win11-20260130-en
10 signatures
150 seconds
General
- Target AsyncRat.exe
- Size 56KB
- Sample260511-cqtpzaas71
- SHA256 e21df37bfcee66180ae1004df03b569333c23bad60f1cde991352d594b0a1aee
- MD5 cc87e3d95bc3770b3e2ff26927375112
- SHA1 dc3e9a1c70da60211de4bac60feeed9713abfd91
- SHA512 27108f9add4c037bfcbfa390aac2879c29f65352d3a6c14884a813201bb730146792ee7b05fa264182768d941837ed2efad61c683e71b5ef97261ce69cb46a52
- SSDEEP 1536:2uf09TH2w24+q+3lM3beX7PvCdNkejNUHLRU:2ufoTH2w2w+1M3be2DkINYU
- TLSH T1E5436C0037E8813BF2BE4FB8ACF21145467AF2A77602D65D1CC8519B5B13BC6DA426F9
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
asyncrat
Version
-
0.5.8
Botnet
-
Default
C2
-
prefer.it.com:443
-
prefer.it.com:8848
-
prefer.it.com:8080
Mutex
-
TBqzBekQyHvO
Attributes
-
delay
3
-
install
true
-
install_file
AsyncRat.exe
-
install_folder
%AppData%
aes.plain
Signatures
- Async RAT payload 1 IoCs
resource yara_rule behavioral2/files/0x001a00000002b41a-10.dat family_asyncrat - Executes dropped EXE 2 IoCs
pid Process 4248 AsyncRat.exe 1672 AsyncRat.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 schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AsyncRat.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AsyncRat.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AsyncRat.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 - Delays execution with timeout.exe 1 IoCs
pid Process 2820 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 5040 schtasks.exe - Suspicious behavior: EnumeratesProcesses 19 IoCs
pid Process 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe 1592 AsyncRat.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1592 AsyncRat.exe Token: SeDebugPrivilege 4248 AsyncRat.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 1592 wrote to memory of 4384 1592 AsyncRat.exe 79 PID 1592 wrote to memory of 4828 1592 AsyncRat.exe 81 PID 4828 wrote to memory of 2820 4828 cmd.exe 83 PID 4384 wrote to memory of 5040 4384 cmd.exe 84 PID 4828 wrote to memory of 1672 4828 cmd.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\AsyncRat.exe"C:\Users\Admin\AppData\Local\Temp\AsyncRat.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1592 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "AsyncRat" /tr '"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"' & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4384 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "AsyncRat" /tr '"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:5040
-
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp21FA.tmp.bat""2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4828 -
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:2820
-
-
C:\Users\Admin\AppData\Roaming\AsyncRat.exe"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1672
-
-
-
C:\Users\Admin\AppData\Roaming\AsyncRat.exe"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4248
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\AsyncRat.exe.log
- Size 522B
- SHA256 3a8c487575696f7ace931dc220c85a47d33e0ead96aa9e47c705fee5dfac667a
- MD5 db9f45365506c49961bfaf3be1475ad2
- SHA1 6bd7222f7b7e3e9685207cb285091c92728168e4
- SHA512 807028e2aed5b25b2d19ec4f09867746456de4e506c90c73e6730b35303511349a79ca0b9290509664edc0433d47e3fc7f2661534293ebb82185b1494da86a41
- TLSH T10DF09E303231B1D848023F42181C7A8942EF0746B7B8DF2D3650231EDC350176F212E3
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\tmp21FA.tmp.bat
- Size 152B
- SHA256 410d33a0b1432ad387bdedc1467335a17c711757ed6237607e319ded090ec934
- MD5 4e569a2c4e6fdff48d752e8ad350c0ff
- SHA1 481450520286ef37e5a2df95677acf92f30c8ab2
- SHA512 04222c6db72e67285af38a854b8bf69c0b3139d8934967cb79d92b8f79d93f56bde2e46c3a598479f4fdbba3a9b3a4a4cc7388d877039aa8d450fc3508a72e3e
- TLSH T1A9C08C52A2C5AA2E2C05342312BA988C91666D9A3E40AB40C30845A92280588E0A9242
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Roaming\AsyncRat.exe
- Size 56KB
- SHA256 e21df37bfcee66180ae1004df03b569333c23bad60f1cde991352d594b0a1aee
- MD5 cc87e3d95bc3770b3e2ff26927375112
- SHA1 dc3e9a1c70da60211de4bac60feeed9713abfd91
- SHA512 27108f9add4c037bfcbfa390aac2879c29f65352d3a6c14884a813201bb730146792ee7b05fa264182768d941837ed2efad61c683e71b5ef97261ce69cb46a52
- SSDEEP 1536:2uf09TH2w24+q+3lM3beX7PvCdNkejNUHLRU:2ufoTH2w2w+1M3be2DkINYU
- TLSH T1E5436C0037E8813BF2BE4FB8ACF21145467AF2A77602D65D1CC8519B5B13BC6DA426F9
- MD5 SHA1 SHA512 SSDEEP TLSH