Analysis
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max time kernel
146s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04-03-2024 12:53
Behavioral task
behavioral1
Sample
xmhk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
xmhk.exe
Resource
win10v2004-20240226-en
General
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Target
xmhk.exe
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Size
68KB
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MD5
c3e87d5de68cefd51bdd950b3d6c488b
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SHA1
78086f01b5aacf7f7bd13e62d842f0e89b36662a
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SHA256
2e8018f36f3e682f8c8f407448cb2c41e639707c251ae5877090d61286143ba4
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SHA512
6929ae82a700e55d953c753b7aff2c8e4db0717a18bbc20bd502223a8dd17d5dce1ea4e2d9c081206826a4c006285b2a26042e8bf8e3110ae03d517048279962
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SSDEEP
768:BCB8S+OR7dOahyoHokBtqN74W7bZZmYb9PyzcjRlYlwa6NVdkPnJJMIWV:BHJaAoHoc2x7bZoYBAcQlwJdMq
Malware Config
Signatures
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RunningRat
RunningRat is a remote access trojan first seen in 2018.
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RunningRat payload 1 IoCs
resource yara_rule behavioral1/memory/1704-0-0x0000000010000000-0x000000001000F000-memory.dmp family_runningrat -
Sets DLL path for service in the registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SANETRUDDL\Parameters\ServiceDll = "C:\\Windows\\system32\\259410817.dll" xmhk.exe -
Executes dropped EXE 1 IoCs
pid Process 2652 SANETRUDDL.exe -
Loads dropped DLL 7 IoCs
pid Process 1704 xmhk.exe 2084 svchost.exe 2084 svchost.exe 2652 SANETRUDDL.exe 2652 SANETRUDDL.exe 2652 SANETRUDDL.exe 2652 SANETRUDDL.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\SANETRUDDL.exe svchost.exe File opened for modification C:\Windows\SysWOW64\SANETRUDDL.exe svchost.exe File created C:\Windows\SysWOW64\259410817.dll xmhk.exe File opened for modification C:\Windows\SysWOW64\ini.ini xmhk.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2084 wrote to memory of 2652 2084 svchost.exe 30 PID 2084 wrote to memory of 2652 2084 svchost.exe 30 PID 2084 wrote to memory of 2652 2084 svchost.exe 30 PID 2084 wrote to memory of 2652 2084 svchost.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\xmhk.exe"C:\Users\Admin\AppData\Local\Temp\xmhk.exe"1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
PID:1704
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "SANETRUDDL"1⤵PID:2996
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "SANETRUDDL"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2084 -
C:\Windows\SysWOW64\SANETRUDDL.exeC:\Windows\system32\SANETRUDDL.exe "c:\windows\system32\259410817.dll",MainThread2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2652
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
37KB
MD5499e20e019ab256f0bf04c32f918d0e5
SHA1137d220142b0874cbd07144966a17de0cc9a367b
SHA2565923306e423eabbc2fed3eb49374d3426c286e9103a5f6b6ca6dcb1ed4f22576
SHA5124099b6a9606da2d49b0d91d60e8c15102a79b98e9ca681aa1c37750f5bf863e2dbf2e8e82bab349c4f29ebd73e5fa5da0e92dda4345f966603f0cd906a2c2f10
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Filesize
43KB
MD551138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d