Analysis
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max time kernel
47s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
20-08-2022 20:28
Behavioral task
behavioral1
Sample
1.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
1.exe
Resource
win10v2004-20220812-en
General
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Target
1.exe
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Size
68KB
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MD5
93dff428b7ecfc0e4320d5190bd095b4
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SHA1
2c8b2fbc863bdbbbe9ec69ec4ca0cefa5afef503
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SHA256
76d00037ad0e19a299b97f7781affae6c33254887d0068dd7d13a34cc3d26297
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SHA512
a77712c3f40a0ab0ef7bfd8927f5815d1c2d506cd5013fe44a392b1f585e889001ce48e424415c4fbd0598877fd9def3a26e1d24f27731e070d34dffb1b6ba58
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
Processes:
resource yara_rule behavioral1/memory/1916-54-0x0000000010000000-0x000000001000F000-memory.dmp family_runningrat -
Executes dropped EXE 1 IoCs
Processes:
SRDSLS.exepid process 964 SRDSLS.exe -
Sets DLL path for service in the registry 2 TTPs 1 IoCs
Processes:
1.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SRDSLS\Parameters\ServiceDll = "C:\\Windows\\system32\\7088170.dll" 1.exe -
Loads dropped DLL 7 IoCs
Processes:
1.exesvchost.exeSRDSLS.exepid process 1916 1.exe 1296 svchost.exe 1296 svchost.exe 964 SRDSLS.exe 964 SRDSLS.exe 964 SRDSLS.exe 964 SRDSLS.exe -
Drops file in System32 directory 4 IoCs
Processes:
1.exesvchost.exedescription ioc process File opened for modification C:\Windows\SysWOW64\ini.ini 1.exe File created C:\Windows\SysWOW64\SRDSLS.exe svchost.exe File opened for modification C:\Windows\SysWOW64\SRDSLS.exe svchost.exe File created C:\Windows\SysWOW64\7088170.dll 1.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
SRDSLS.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 SRDSLS.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz SRDSLS.exe -
Modifies data under HKEY_USERS 5 IoCs
Processes:
SRDSLS.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum SRDSLS.exe Key created \REGISTRY\USER\.DEFAULT\Software SRDSLS.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft SRDSLS.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie SRDSLS.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" SRDSLS.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
svchost.exedescription pid process target process PID 1296 wrote to memory of 964 1296 svchost.exe SRDSLS.exe PID 1296 wrote to memory of 964 1296 svchost.exe SRDSLS.exe PID 1296 wrote to memory of 964 1296 svchost.exe SRDSLS.exe PID 1296 wrote to memory of 964 1296 svchost.exe SRDSLS.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1.exe"C:\Users\Admin\AppData\Local\Temp\1.exe"1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
PID:1916
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "SRDSLS"1⤵PID:696
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "SRDSLS"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1296 -
C:\Windows\SysWOW64\SRDSLS.exeC:\Windows\system32\SRDSLS.exe "c:\windows\system32\7088170.dll",MainThread2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Modifies data under HKEY_USERS
PID:964
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
43KB
MD551138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
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Filesize
43KB
MD551138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
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Filesize
44B
MD5688a0af27b9161aedaf4d2a6e7836ccd
SHA1bf5b413bfb1244446a011174c9d15f2ba6b2f4ba
SHA25611a949b684cd68137a8ec9378dd3f82c3a6bc7c1a91bd8ac865ef58beea84540
SHA512262dce9ebcf79d9c7a637185aa3383a811e55bd77e9e29c79967ae5ef8bb2337895e5e02d60f353797f91cbf45fb4628a82990ee36c47077c807737f8f235ec7
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Filesize
37KB
MD506dc6402f153aaa067f95cce93e23cd6
SHA1dd74618956182878e33110d2f0900e442c5875a4
SHA2569ef9d33de25bd7eb1692612909c4bb83e754b3824b6088469d6e082e5c8b368c
SHA512401aaa6fd7e57927d87223124b5e0bf69d4a4c9d48c2f349082da65481cabec9f0b89f4a05d39d3fe9b4a6ed1ba040e3f905583b0f181ed2107e2f8edc7c8f16
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Filesize
37KB
MD506dc6402f153aaa067f95cce93e23cd6
SHA1dd74618956182878e33110d2f0900e442c5875a4
SHA2569ef9d33de25bd7eb1692612909c4bb83e754b3824b6088469d6e082e5c8b368c
SHA512401aaa6fd7e57927d87223124b5e0bf69d4a4c9d48c2f349082da65481cabec9f0b89f4a05d39d3fe9b4a6ed1ba040e3f905583b0f181ed2107e2f8edc7c8f16
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Filesize
37KB
MD506dc6402f153aaa067f95cce93e23cd6
SHA1dd74618956182878e33110d2f0900e442c5875a4
SHA2569ef9d33de25bd7eb1692612909c4bb83e754b3824b6088469d6e082e5c8b368c
SHA512401aaa6fd7e57927d87223124b5e0bf69d4a4c9d48c2f349082da65481cabec9f0b89f4a05d39d3fe9b4a6ed1ba040e3f905583b0f181ed2107e2f8edc7c8f16
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Filesize
37KB
MD506dc6402f153aaa067f95cce93e23cd6
SHA1dd74618956182878e33110d2f0900e442c5875a4
SHA2569ef9d33de25bd7eb1692612909c4bb83e754b3824b6088469d6e082e5c8b368c
SHA512401aaa6fd7e57927d87223124b5e0bf69d4a4c9d48c2f349082da65481cabec9f0b89f4a05d39d3fe9b4a6ed1ba040e3f905583b0f181ed2107e2f8edc7c8f16
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Filesize
37KB
MD506dc6402f153aaa067f95cce93e23cd6
SHA1dd74618956182878e33110d2f0900e442c5875a4
SHA2569ef9d33de25bd7eb1692612909c4bb83e754b3824b6088469d6e082e5c8b368c
SHA512401aaa6fd7e57927d87223124b5e0bf69d4a4c9d48c2f349082da65481cabec9f0b89f4a05d39d3fe9b4a6ed1ba040e3f905583b0f181ed2107e2f8edc7c8f16
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Filesize
37KB
MD506dc6402f153aaa067f95cce93e23cd6
SHA1dd74618956182878e33110d2f0900e442c5875a4
SHA2569ef9d33de25bd7eb1692612909c4bb83e754b3824b6088469d6e082e5c8b368c
SHA512401aaa6fd7e57927d87223124b5e0bf69d4a4c9d48c2f349082da65481cabec9f0b89f4a05d39d3fe9b4a6ed1ba040e3f905583b0f181ed2107e2f8edc7c8f16
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Filesize
37KB
MD506dc6402f153aaa067f95cce93e23cd6
SHA1dd74618956182878e33110d2f0900e442c5875a4
SHA2569ef9d33de25bd7eb1692612909c4bb83e754b3824b6088469d6e082e5c8b368c
SHA512401aaa6fd7e57927d87223124b5e0bf69d4a4c9d48c2f349082da65481cabec9f0b89f4a05d39d3fe9b4a6ed1ba040e3f905583b0f181ed2107e2f8edc7c8f16
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Filesize
43KB
MD551138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d