Analysis
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max time kernel
150s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
14-05-2023 01:57
Static task
static1
Behavioral task
behavioral1
Sample
8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe
Resource
win7-20230220-en
General
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Target
8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe
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Size
322KB
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MD5
c5b9c27223bd12c6e6a0c46e5b411e27
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SHA1
68a98a64db6df5bd1feb25288220d186da8fd718
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SHA256
8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48
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SHA512
a3d3cdb3b4b1ba88000fc458a4def99973d4a0794b9e85bd0f156643c925f3baaebe9f3a900f8b260568af484671c6c0d541e7403a6d7075a1783088ba630299
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SSDEEP
3072:1KPtaVfzJ+xzpxIUgpnvKxvGbqqV7gPCs5lQYFwGfABn/9vOsJp7t:QetWkUIy4bVyCs5ZQ/OI
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Signatures
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Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\sbiwmxhp = "0" svchost.exe -
Creates new service(s) 1 TTPs
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Modifies Windows Firewall 1 TTPs 1 IoCs
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Sets service image path in registry 2 TTPs 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\sbiwmxhp\ImagePath = "C:\\Windows\\SysWOW64\\sbiwmxhp\\lxfcivbz.exe" svchost.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 1792 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
lxfcivbz.exepid process 1952 lxfcivbz.exe -
Drops file in System32 directory 1 IoCs
Processes:
svchost.exedescription ioc process File created C:\Windows\SysWOW64\config\systemprofile:.repos svchost.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
lxfcivbz.exedescription pid process target process PID 1952 set thread context of 1792 1952 lxfcivbz.exe svchost.exe -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exesc.exesc.exepid process 1412 sc.exe 972 sc.exe 1716 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies data under HKEY_USERS 2 IoCs
Processes:
svchost.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Control Panel\Buses svchost.exe Set value (data) \REGISTRY\USER\.DEFAULT\Control Panel\Buses\Config0 = 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 svchost.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exelxfcivbz.exedescription pid process target process PID 1980 wrote to memory of 908 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe cmd.exe PID 1980 wrote to memory of 908 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe cmd.exe PID 1980 wrote to memory of 908 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe cmd.exe PID 1980 wrote to memory of 908 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe cmd.exe PID 1980 wrote to memory of 472 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe cmd.exe PID 1980 wrote to memory of 472 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe cmd.exe PID 1980 wrote to memory of 472 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe cmd.exe PID 1980 wrote to memory of 472 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe cmd.exe PID 1980 wrote to memory of 1412 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 1412 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 1412 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 1412 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 972 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 972 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 972 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 972 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 1716 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 1716 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 1716 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 1716 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe sc.exe PID 1980 wrote to memory of 1900 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe netsh.exe PID 1980 wrote to memory of 1900 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe netsh.exe PID 1980 wrote to memory of 1900 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe netsh.exe PID 1980 wrote to memory of 1900 1980 8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe netsh.exe PID 1952 wrote to memory of 1792 1952 lxfcivbz.exe svchost.exe PID 1952 wrote to memory of 1792 1952 lxfcivbz.exe svchost.exe PID 1952 wrote to memory of 1792 1952 lxfcivbz.exe svchost.exe PID 1952 wrote to memory of 1792 1952 lxfcivbz.exe svchost.exe PID 1952 wrote to memory of 1792 1952 lxfcivbz.exe svchost.exe PID 1952 wrote to memory of 1792 1952 lxfcivbz.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe"C:\Users\Admin\AppData\Local\Temp\8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sbiwmxhp\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lxfcivbz.exe" C:\Windows\SysWOW64\sbiwmxhp\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create sbiwmxhp binPath= "C:\Windows\SysWOW64\sbiwmxhp\lxfcivbz.exe /d\"C:\Users\Admin\AppData\Local\Temp\8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description sbiwmxhp "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start sbiwmxhp2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
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C:\Windows\SysWOW64\sbiwmxhp\lxfcivbz.exeC:\Windows\SysWOW64\sbiwmxhp\lxfcivbz.exe /d"C:\Users\Admin\AppData\Local\Temp\8cc3efde2ca85f0d6fcb6c96beb65869fdf024b3f948c1de79194e7988446a48.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
- Drops file in System32 directory
- Modifies data under HKEY_USERS
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\lxfcivbz.exeFilesize
14.8MB
MD5be0a62e3152d95b6f9ffc89fe7d614bb
SHA1e6a8899286ae77009d50ec9125c11716b8c0cb62
SHA2566ce1c4611440fea167566e6012b67c8043da1c4832c31698becfd78d475161a1
SHA5120e48acdf1e2d6c567266415d10c673c95b2d564b4440e7d80b0429fdfd92cf71b9979b4c7f66be86a70600632972e02e6153852433f7fd04a1ee623ab8e06be1
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C:\Windows\SysWOW64\sbiwmxhp\lxfcivbz.exeFilesize
14.8MB
MD5be0a62e3152d95b6f9ffc89fe7d614bb
SHA1e6a8899286ae77009d50ec9125c11716b8c0cb62
SHA2566ce1c4611440fea167566e6012b67c8043da1c4832c31698becfd78d475161a1
SHA5120e48acdf1e2d6c567266415d10c673c95b2d564b4440e7d80b0429fdfd92cf71b9979b4c7f66be86a70600632972e02e6153852433f7fd04a1ee623ab8e06be1
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memory/1792-67-0x00000000000C0000-0x00000000000D5000-memory.dmpFilesize
84KB
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memory/1792-68-0x00000000000C0000-0x00000000000D5000-memory.dmpFilesize
84KB
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memory/1792-62-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/1792-61-0x00000000000C0000-0x00000000000D5000-memory.dmpFilesize
84KB
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memory/1792-63-0x00000000000C0000-0x00000000000D5000-memory.dmpFilesize
84KB
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memory/1792-79-0x0000000000160000-0x0000000000170000-memory.dmpFilesize
64KB
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memory/1792-76-0x0000000000150000-0x0000000000156000-memory.dmpFilesize
24KB
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memory/1792-75-0x0000000001CB0000-0x0000000001EBF000-memory.dmpFilesize
2.1MB
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memory/1792-69-0x00000000000C0000-0x00000000000D5000-memory.dmpFilesize
84KB
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memory/1792-70-0x00000000000C0000-0x00000000000D5000-memory.dmpFilesize
84KB
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memory/1792-72-0x0000000001CB0000-0x0000000001EBF000-memory.dmpFilesize
2.1MB
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memory/1952-66-0x0000000000400000-0x00000000006CE000-memory.dmpFilesize
2.8MB
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memory/1980-59-0x0000000000400000-0x00000000006CE000-memory.dmpFilesize
2.8MB
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memory/1980-56-0x0000000000230000-0x0000000000243000-memory.dmpFilesize
76KB