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Analysis
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max time kernel
253s -
max time network
304s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
01/12/2023, 15:08
Behavioral task
behavioral1
Sample
78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe
Resource
win7-20231023-en
General
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Target
78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe
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Size
911KB
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MD5
4e959e6b6bcb3b88d1b791f397009ace
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SHA1
03c6825264db0b9f7e84984e4833fa3450f11a9d
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SHA256
78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1
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SHA512
646b91c8ef0b1ef51c9473ce8ac21a91f0596433604c8afdf1bef76c980190a60172cc1c50dec92d5c9eeb726e0c771f186254ce1e499c5992848d1c202f0188
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SSDEEP
12288:cy50ed4DkhUo2y27dG1lFlWcYT70pxnnaaoawVm1aBGyrZNrI0AilFEvxHvBMTLG:pzA4MROxnFnaBrZlI0AilFEvxHiCz
Malware Config
Extracted
orcus
Default
216.170.120.141:42069
c9015774f0ad4366bafd53ee00a5ef2f
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autostart_method
TaskScheduler
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enable_keylogger
true
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install_path
%programfiles%\Taber LLC\RMM\rmm.exe
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reconnect_delay
10000
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registry_keyname
RMM
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taskscheduler_taskname
RMM
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watchdog_path
AppData\OrcusWatchdog.exe
Signatures
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Orcus main payload 3 IoCs
resource yara_rule behavioral1/files/0x001c000000015c86-40.dat family_orcus behavioral1/files/0x001c000000015c86-42.dat family_orcus behavioral1/files/0x001c000000015c86-54.dat family_orcus -
Orcurs Rat Executable 4 IoCs
resource yara_rule behavioral1/files/0x001c000000015c86-40.dat orcus behavioral1/files/0x001c000000015c86-42.dat orcus behavioral1/memory/2876-43-0x0000000000980000-0x0000000000A6A000-memory.dmp orcus behavioral1/files/0x001c000000015c86-54.dat orcus -
Executes dropped EXE 4 IoCs
pid Process 2556 WindowsInput.exe 3064 WindowsInput.exe 2876 rmm.exe 2800 rmm.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\WindowsInput.exe 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe File created C:\Windows\SysWOW64\WindowsInput.exe.config 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe File created C:\Windows\SysWOW64\WindowsInput.InstallState WindowsInput.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files\Taber LLC\RMM\rmm.exe 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe File created C:\Program Files\Taber LLC\RMM\rmm.exe.config 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe File created C:\Program Files\Taber LLC\RMM\rmm.exe 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2876 rmm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2876 rmm.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2700 wrote to memory of 2616 2700 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe 27 PID 2700 wrote to memory of 2616 2700 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe 27 PID 2700 wrote to memory of 2616 2700 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe 27 PID 2616 wrote to memory of 2652 2616 csc.exe 29 PID 2616 wrote to memory of 2652 2616 csc.exe 29 PID 2616 wrote to memory of 2652 2616 csc.exe 29 PID 2700 wrote to memory of 2556 2700 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe 30 PID 2700 wrote to memory of 2556 2700 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe 30 PID 2700 wrote to memory of 2556 2700 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe 30 PID 2700 wrote to memory of 2876 2700 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe 32 PID 2700 wrote to memory of 2876 2700 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe 32 PID 2700 wrote to memory of 2876 2700 78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe 32 PID 1008 wrote to memory of 2800 1008 taskeng.exe 34 PID 1008 wrote to memory of 2800 1008 taskeng.exe 34 PID 1008 wrote to memory of 2800 1008 taskeng.exe 34 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe"C:\Users\Admin\AppData\Local\Temp\78978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1.exe"1⤵
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2700 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe"C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\kwydawnv.cmdline"2⤵
- Suspicious use of WriteProcessMemory
PID:2616 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exeC:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES1009.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC1008.tmp"3⤵PID:2652
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:2556
-
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C:\Program Files\Taber LLC\RMM\rmm.exe"C:\Program Files\Taber LLC\RMM\rmm.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2876
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:3064
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C:\Windows\system32\taskeng.exetaskeng.exe {E02CB8D9-5935-4132-B69F-C27F92D3AC54} S-1-5-21-3425689832-2386927309-2650718742-1000:AWDHTXES\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1008 -
C:\Program Files\Taber LLC\RMM\rmm.exe"C:\Program Files\Taber LLC\RMM\rmm.exe"2⤵
- Executes dropped EXE
PID:2800
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
911KB
MD54e959e6b6bcb3b88d1b791f397009ace
SHA103c6825264db0b9f7e84984e4833fa3450f11a9d
SHA25678978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1
SHA512646b91c8ef0b1ef51c9473ce8ac21a91f0596433604c8afdf1bef76c980190a60172cc1c50dec92d5c9eeb726e0c771f186254ce1e499c5992848d1c202f0188
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Filesize
911KB
MD54e959e6b6bcb3b88d1b791f397009ace
SHA103c6825264db0b9f7e84984e4833fa3450f11a9d
SHA25678978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1
SHA512646b91c8ef0b1ef51c9473ce8ac21a91f0596433604c8afdf1bef76c980190a60172cc1c50dec92d5c9eeb726e0c771f186254ce1e499c5992848d1c202f0188
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Filesize
911KB
MD54e959e6b6bcb3b88d1b791f397009ace
SHA103c6825264db0b9f7e84984e4833fa3450f11a9d
SHA25678978a36b56e68b07d49c3e380f30c7c12668edc3bb71761c2bd8b05b416fcb1
SHA512646b91c8ef0b1ef51c9473ce8ac21a91f0596433604c8afdf1bef76c980190a60172cc1c50dec92d5c9eeb726e0c771f186254ce1e499c5992848d1c202f0188
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad
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Filesize
1KB
MD5da8ef203933c7695a718ce1cd3a7a752
SHA1f201e88556c09dce532f8868fcfba4ed7b9cf191
SHA256cba90c4076ad69d475eb2382cad107c6770cbd65a862fde1f4ca74ca1c7ea00f
SHA5129c61cedbbe5b8893e77a7fe8a2d83a3027a8e5c6b7d7d7c567963de5262c36804cb0267e86ae6a1e55ca4dacc3ab55ec60b05628e9e30c3309949dbd5863a19e
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Filesize
76KB
MD5b47a86fd1aedca0be836be66f865b63f
SHA15019c7ad4a334da3a0a32290fdf0cfa78a596828
SHA256b102906dd820ac9c594e76d5edb69f26fd4247cac7ebec65f8ac514188158cef
SHA512da4417db1b233964a0c676a8e6649054eddc6637017d4fbb02d14bb5b5929c6f6956d2c40905ab58f82c7caa5606302de12d48e0424199fae7eb6b14187f1112
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Filesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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Filesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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Filesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad
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Filesize
676B
MD507fd38a6173a015867486f54a8214e6c
SHA1c0cd2db4be0a94813ca4668052cda6e3c41b4172
SHA256c682383c3d12658a64df0f2626b03e4d0b6bb09bdf07ed21773a1c72769f8268
SHA512a55af99a86cfdb5e68d36e0b83d25804b48c6f5853cea4d03aae583c55674b7ca4605f8ce8e398610477f6672005feee71afd8ea030ff0edee7b8afa385986ca
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Filesize
208KB
MD593d26a810d7ff3f695cb1baab0dc139f
SHA153160d8bd8ef01018ad2e196fa12486eacb0901c
SHA2568e3249583a776f03a5c62855321d7ef00b38d6869a1de47b0498ead8520f0f36
SHA512020dfa4d66b4732d3df8453342069126c8607e1ea8a71e1879a231901e0941b56f39cb5fcc3dcf736005cb2f1cef27c26b549fe5554037cd2f7318cbe1594631
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Filesize
349B
MD5089b82db18c352b7fdf28ffd26729f6a
SHA1b5413e5359a220fbabcb67cf42c0350afaa2e9ed
SHA256441e90c06e1eefafd20caba314474f4162aa1149a6e02f570a4b550c54891839
SHA512fcb7deb2b17de5831950149384f7aa572dc071c4332205291490f57d09220693d8045a0c461612e9b3053f061492550b2332051bd3fde273d215746439fcdf97