Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 12:43
Behavioral task
behavioral1
Sample
794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe
Resource
win11ltsc2024-20260709-en
General
- Target 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe
- Size 45KB
- Sample260804-pxwjcs1bnc
- SHA256 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0
- MD5 fef96814e34d29fe00d6ec71c3e67741
- SHA1 0e3423a4cc7460b12c35b1ab3d3200f348c9402d
- SHA512 4e8daa676ece3dd83a6357d50e9352c0f8ad5e7f6719d1f3dd0cc43543002863defd4ff2f3ceff8480b5e0f943d01fd5b9e0963144087ce7ea0b37402829f18a
- SSDEEP 768:RuxkJTVmU5EkWUGMKSmo2q17bT0GYjHuPIpzjbPgXWiOWM6YkB1iDSEPFBDZcx:RuxkJTgip2Os/3p3b4XfveDSEjdcx
- TLSH T1BF231A003BE8C22BF2BE4FB899F26245467AF2637603D54D1CC451DB5623BC69A426FD
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
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haysexcdn.net:80
-
haysexcdn.net:22
-
haysexcdn.net:8080
-
haysexcdn.net:8880
-
haysexcdn.net:2052
-
haysexcdn.net:2082
-
haysexcdn.net:2086
-
haysexcdn.net:2095
-
haysexcdn.net:443
-
haysexcdn.net:2053
-
haysexcdn.net:2083
-
haysexcdn.net:2087
-
haysexcdn.net:2096
-
haysexcdn.net:8443
-
www.haysexcdn.net:80
-
www.haysexcdn.net:22
-
www.haysexcdn.net:8080
-
www.haysexcdn.net:8880
-
www.haysexcdn.net:2052
-
www.haysexcdn.net:2082
-
www.haysexcdn.net:2086
-
www.haysexcdn.net:2095
-
www.haysexcdn.net:443
-
www.haysexcdn.net:2053
-
www.haysexcdn.net:2083
-
www.haysexcdn.net:2087
-
www.haysexcdn.net:2096
-
www.haysexcdn.net:8443
-
sasser.haysexcdn.net:80
-
sasser.haysexcdn.net:22
-
sasser.haysexcdn.net:8080
-
sasser.haysexcdn.net:8880
-
sasser.haysexcdn.net:2052
-
sasser.haysexcdn.net:2082
-
sasser.haysexcdn.net:2086
-
sasser.haysexcdn.net:2095
-
sasser.haysexcdn.net:443
-
sasser.haysexcdn.net:2053
-
sasser.haysexcdn.net:2083
-
sasser.haysexcdn.net:2087
-
sasser.haysexcdn.net:2096
-
sasser.haysexcdn.net:8443
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nimda.haysexcdn.net:80
-
nimda.haysexcdn.net:22
-
nimda.haysexcdn.net:8080
-
nimda.haysexcdn.net:8880
-
nimda.haysexcdn.net:2052
-
nimda.haysexcdn.net:2082
-
nimda.haysexcdn.net:2086
-
nimda.haysexcdn.net:2095
-
nimda.haysexcdn.net:443
-
nimda.haysexcdn.net:2053
-
nimda.haysexcdn.net:2083
-
nimda.haysexcdn.net:2087
-
nimda.haysexcdn.net:2096
-
nimda.haysexcdn.net:8443
-
TDaD1loZwksQ
-
delay
0
-
install
true
-
install_file
rir13esn.exe
-
install_folder
%AppData%
Signatures
- Async RAT payload 1 IoCs
resource yara_rule behavioral2/files/0x000d00000001c625-10.dat family_asyncrat - Executes dropped EXE 2 IoCs
pid Process 2920 rir13esn.exe 6316 rir13esn.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 SSH destination 14 104.26.5.211:22 SSH destination 16 172.67.73.19:22 SSH destination 17 104.26.4.211:22 SSH destination 18 104.26.5.211:22 - 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 5684 cmd.exe 4208 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 rir13esn.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rir13esn.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe - Delays execution with timeout.exe 1 IoCs
pid Process 1532 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 2348 schtasks.exe - Suspicious behavior: EnumeratesProcesses 31 IoCs
pid Process 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe Token: SeDebugPrivilege 2920 rir13esn.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4088 wrote to memory of 5684 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 90 PID 4088 wrote to memory of 4208 4088 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe 92 PID 5684 wrote to memory of 2348 5684 cmd.exe 94 PID 4208 wrote to memory of 1532 4208 cmd.exe 95 PID 4208 wrote to memory of 6316 4208 cmd.exe 98
Processes
-
C:\Users\Admin\AppData\Local\Temp\794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe"C:\Users\Admin\AppData\Local\Temp\794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4088 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "rir13esn" /tr '"C:\Users\Admin\AppData\Roaming\rir13esn.exe"' & exit2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5684 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "rir13esn" /tr '"C:\Users\Admin\AppData\Roaming\rir13esn.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2348
-
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp908E.tmp.bat""2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4208 -
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:1532
-
-
C:\Users\Admin\AppData\Roaming\rir13esn.exe"C:\Users\Admin\AppData\Roaming\rir13esn.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:6316
-
-
-
C:\Users\Admin\AppData\Roaming\rir13esn.exe"C:\Users\Admin\AppData\Roaming\rir13esn.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2920
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\tmp908E.tmp.bat
- Size 152B
- SHA256 ba5a846af38d9f0473f75ab8bd2c85be76b4b6d129099d6cb21b51b9c1dd2147
- MD5 1ce7e6dd8a04445b5b6e5b58295b09c0
- SHA1 a2085267d2f50d4c726e969cb13ba4baafdb1eea
- SHA512 c5c5470f3edd3cc2ee05d1d1c24f719850898da078d5d40850d5faf9444d34d2db3b827f3400786fe37232b73bb443d56b79750fd9aadf244873de44c8a305ef
- TLSH T199C08C5272C5AE4E2D09342313BAEC9D917269193E40BB00C705801D2280448F099745
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Roaming\rir13esn.exe
- Size 45KB
- SHA256 794dbc5e9a00bb582db2580376fc19aa77ceaf044d43a3e4a38de2d94f2ebed0
- MD5 fef96814e34d29fe00d6ec71c3e67741
- SHA1 0e3423a4cc7460b12c35b1ab3d3200f348c9402d
- SHA512 4e8daa676ece3dd83a6357d50e9352c0f8ad5e7f6719d1f3dd0cc43543002863defd4ff2f3ceff8480b5e0f943d01fd5b9e0963144087ce7ea0b37402829f18a
- SSDEEP 768:RuxkJTVmU5EkWUGMKSmo2q17bT0GYjHuPIpzjbPgXWiOWM6YkB1iDSEPFBDZcx:RuxkJTgip2Os/3p3b4XfveDSEjdcx
- TLSH T1BF231A003BE8C22BF2BE4FB899F26245467AF2637603D54D1CC451DB5623BC69A426FD
- MD5 SHA1 SHA512 SSDEEP TLSH