Malware Analysis Report

2025-08-10 17:43

Sample ID 230321-c76e4aae61
Target Launcher.exe
SHA256 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138
Tags
rat default asyncrat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138

Threat Level: Known bad

The file Launcher.exe was found to be: Known bad.

Malicious Activity Summary

rat default asyncrat

AsyncRat

Asyncrat family

Async RAT payload

Async RAT payload

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Enumerates physical storage devices

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-03-21 02:44

Signatures

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Asyncrat family

asyncrat

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-21 02:44

Reported

2023-03-21 02:46

Platform

win7-20230220-en

Max time kernel

144s

Max time network

34s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Launcher.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\windows.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\windows.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1324 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 772 wrote to memory of 1200 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 772 wrote to memory of 1200 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 772 wrote to memory of 1200 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 772 wrote to memory of 1200 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 772 wrote to memory of 1200 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 772 wrote to memory of 1200 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 772 wrote to memory of 1200 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2004 wrote to memory of 1500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2004 wrote to memory of 1500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2004 wrote to memory of 1500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2004 wrote to memory of 1500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2004 wrote to memory of 1500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2004 wrote to memory of 1500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2004 wrote to memory of 1500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 772 wrote to memory of 560 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\windows.exe
PID 772 wrote to memory of 560 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\windows.exe
PID 772 wrote to memory of 560 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\windows.exe
PID 772 wrote to memory of 560 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\windows.exe
PID 772 wrote to memory of 560 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\windows.exe
PID 772 wrote to memory of 560 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\windows.exe
PID 772 wrote to memory of 560 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\windows.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Launcher.exe

"C:\Users\Admin\AppData\Local\Temp\Launcher.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windows" /tr '"C:\Users\Admin\AppData\Local\Temp\windows.exe"' & exit

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2711.tmp.bat""

C:\Windows\SysWOW64\timeout.exe

timeout 3

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /sc onlogon /rl highest /tn "windows" /tr '"C:\Users\Admin\AppData\Local\Temp\windows.exe"'

C:\Users\Admin\AppData\Local\Temp\windows.exe

"C:\Users\Admin\AppData\Local\Temp\windows.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 jntrojan.ddns.net udp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:7707 tcp

Files

memory/1324-54-0x00000000003D0000-0x0000000000424000-memory.dmp

memory/1324-55-0x0000000004DF0000-0x0000000004E30000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp2711.tmp.bat

MD5 1996d284c52ae05d2e3338063945615d
SHA1 522d58df6c2e2d617ac685130052fe260e0cef57
SHA256 7b6570aa5a1445c5b86082271f6fd4e4313efcb48e731fd75e26cfed27a22013
SHA512 b31292b02e350ce4b51b35386476ac5201f6e57a3781bbe07369fa7126dc77461564716d57b5cafa607a9edaa7c61e0733a0bfa606f598da0e54ac66b9a93d45

C:\Users\Admin\AppData\Local\Temp\tmp2711.tmp.bat

MD5 1996d284c52ae05d2e3338063945615d
SHA1 522d58df6c2e2d617ac685130052fe260e0cef57
SHA256 7b6570aa5a1445c5b86082271f6fd4e4313efcb48e731fd75e26cfed27a22013
SHA512 b31292b02e350ce4b51b35386476ac5201f6e57a3781bbe07369fa7126dc77461564716d57b5cafa607a9edaa7c61e0733a0bfa606f598da0e54ac66b9a93d45

\Users\Admin\AppData\Local\Temp\windows.exe

MD5 66b5dabec55deb65ac6ecdbb385c9181
SHA1 8485dc1ecf501916e3850521e81112fccdfaa110
SHA256 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138
SHA512 28ff7068f0d8c1d7e0de8a6129d64db7d566868dc93e9bb8ba4de737d11483f8dd52edc6f67799cdf3396109061835bce472a2123477bb9304f1ff902ffdffb8

C:\Users\Admin\AppData\Local\Temp\windows.exe

MD5 66b5dabec55deb65ac6ecdbb385c9181
SHA1 8485dc1ecf501916e3850521e81112fccdfaa110
SHA256 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138
SHA512 28ff7068f0d8c1d7e0de8a6129d64db7d566868dc93e9bb8ba4de737d11483f8dd52edc6f67799cdf3396109061835bce472a2123477bb9304f1ff902ffdffb8

C:\Users\Admin\AppData\Local\Temp\windows.exe

MD5 66b5dabec55deb65ac6ecdbb385c9181
SHA1 8485dc1ecf501916e3850521e81112fccdfaa110
SHA256 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138
SHA512 28ff7068f0d8c1d7e0de8a6129d64db7d566868dc93e9bb8ba4de737d11483f8dd52edc6f67799cdf3396109061835bce472a2123477bb9304f1ff902ffdffb8

memory/560-68-0x00000000013A0000-0x00000000013F4000-memory.dmp

memory/560-69-0x00000000012B0000-0x00000000012F0000-memory.dmp

memory/560-70-0x00000000012B0000-0x00000000012F0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-21 02:44

Reported

2023-03-21 02:46

Platform

win10v2004-20230220-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Launcher.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Launcher.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\windows.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\windows.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 736 wrote to memory of 5024 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 736 wrote to memory of 5024 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 736 wrote to memory of 5024 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 736 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 736 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 736 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SysWOW64\cmd.exe
PID 5024 wrote to memory of 3500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 5024 wrote to memory of 3500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 5024 wrote to memory of 3500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 4816 wrote to memory of 536 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4816 wrote to memory of 536 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4816 wrote to memory of 536 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4816 wrote to memory of 4808 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\windows.exe
PID 4816 wrote to memory of 4808 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\windows.exe
PID 4816 wrote to memory of 4808 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\windows.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Launcher.exe

"C:\Users\Admin\AppData\Local\Temp\Launcher.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windows" /tr '"C:\Users\Admin\AppData\Local\Temp\windows.exe"' & exit

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp86C.tmp.bat""

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /sc onlogon /rl highest /tn "windows" /tr '"C:\Users\Admin\AppData\Local\Temp\windows.exe"'

C:\Windows\SysWOW64\timeout.exe

timeout 3

C:\Users\Admin\AppData\Local\Temp\windows.exe

"C:\Users\Admin\AppData\Local\Temp\windows.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 32.18.126.40.in-addr.arpa udp
US 8.8.8.8:53 58.104.205.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 jntrojan.ddns.net udp
N/A 127.0.0.1:6606 tcp
US 8.8.8.8:53 jntrojan.ddns.net udp
US 52.152.110.14:443 tcp
US 20.44.10.122:443 tcp
US 8.8.8.8:53 jntrojan.ddns.net udp
US 8.8.8.8:53 jntrojan.ddns.net udp
US 8.8.8.8:53 161.252.72.23.in-addr.arpa udp
US 8.8.8.8:53 jntrojan.ddns.net udp
US 8.8.8.8:53 jntrojan.ddns.net udp
US 52.152.110.14:443 tcp
US 8.8.8.8:53 1.77.109.52.in-addr.arpa udp
N/A 127.0.0.1:7707 tcp
US 8.8.8.8:53 jntrojan.ddns.net udp
NL 8.238.179.126:80 tcp
N/A 127.0.0.1:6606 tcp
NL 8.238.179.126:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp
US 8.8.8.8:53 jntrojan.ddns.net udp
US 52.152.110.14:443 tcp
N/A 127.0.0.1:6606 tcp
US 8.8.8.8:53 jntrojan.ddns.net udp
US 8.8.8.8:53 jntrojan.ddns.net udp
US 52.152.110.14:443 tcp
N/A 127.0.0.1:7707 tcp
US 8.8.8.8:53 jntrojan.ddns.net udp
N/A 127.0.0.1:7707 tcp
US 8.8.8.8:53 jntrojan.ddns.net udp
US 52.152.110.14:443 tcp
N/A 127.0.0.1:6606 tcp
US 8.8.8.8:53 jntrojan.ddns.net udp
US 8.8.8.8:53 jntrojan.ddns.net udp
N/A 127.0.0.1:6606 tcp
US 52.152.110.14:443 tcp
N/A 127.0.0.1:7707 tcp
US 8.8.8.8:53 jntrojan.ddns.net udp

Files

memory/736-133-0x00000000003E0000-0x0000000000434000-memory.dmp

memory/736-134-0x0000000004D20000-0x0000000004D30000-memory.dmp

memory/736-135-0x0000000005030000-0x00000000050CC000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp86C.tmp.bat

MD5 551e098f5dba2ba686203fac0074e6b4
SHA1 5cdf20379cb8d89f4df0944e50e97366f1028aba
SHA256 16fe3142685d48f78ba19f57a4424bfc7f755754e4d094e2c15a8d27f7edbec0
SHA512 741a7765993244ed8a4f58a248c5f9b73dfa4f243e9b323d479dc3d35808c9acea066b2f233e1bbda4f29289d1b8ba9bd3612339763fe7963f891bf1060914c8

C:\Users\Admin\AppData\Local\Temp\windows.exe

MD5 66b5dabec55deb65ac6ecdbb385c9181
SHA1 8485dc1ecf501916e3850521e81112fccdfaa110
SHA256 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138
SHA512 28ff7068f0d8c1d7e0de8a6129d64db7d566868dc93e9bb8ba4de737d11483f8dd52edc6f67799cdf3396109061835bce472a2123477bb9304f1ff902ffdffb8

C:\Users\Admin\AppData\Local\Temp\windows.exe

MD5 66b5dabec55deb65ac6ecdbb385c9181
SHA1 8485dc1ecf501916e3850521e81112fccdfaa110
SHA256 9a8f8b44910d4c35a64244354966ce7bdd3bdff9189feee1d8e98b094c855138
SHA512 28ff7068f0d8c1d7e0de8a6129d64db7d566868dc93e9bb8ba4de737d11483f8dd52edc6f67799cdf3396109061835bce472a2123477bb9304f1ff902ffdffb8

memory/4808-144-0x0000000002C30000-0x0000000002C40000-memory.dmp

memory/4808-145-0x0000000002C30000-0x0000000002C40000-memory.dmp