Analysis
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max time kernel
119s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
10/01/2024, 06:13
Static task
static1
Behavioral task
behavioral1
Sample
4fccfed3868ef42c54f33dd7c002bb2c.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
4fccfed3868ef42c54f33dd7c002bb2c.exe
Resource
win10v2004-20231215-en
General
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Target
4fccfed3868ef42c54f33dd7c002bb2c.exe
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Size
85KB
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MD5
4fccfed3868ef42c54f33dd7c002bb2c
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SHA1
9b9aca6c8c3563e8f9f7e5cd3f13459fa334eea0
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SHA256
02c198348bbf5ce3b7ee384c5c482a991689e219e21456048b3bc5c64a6a58b6
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SHA512
2208a327d77bdc39d790ec63e5fa188a32ee572cf7986de5b8ceaefe67a06a968165eb5efb010e16d02e7d0de6d6e1884b0eb8773797182bb9eed43ecfb263a5
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SSDEEP
1536:UHSlUL6555Qmkd74v4rYgXVf3lFnToIfqCNdr5ZRNbW4fvTfOqV3Xm:EMUL6555QZ3Vf3ltTBfqCNdr5ZRNbWqe
Malware Config
Signatures
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Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\drivers\beep.sys 4fccfed3868ef42c54f33dd7c002bb2c.exe -
Deletes itself 1 IoCs
pid Process 2368 cmd.exe -
Loads dropped DLL 1 IoCs
pid Process 2476 4fccfed3868ef42c54f33dd7c002bb2c.exe -
resource yara_rule behavioral1/files/0x0008000000012266-4.dat vmprotect -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\RumxtwC.dll 4fccfed3868ef42c54f33dd7c002bb2c.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2476 4fccfed3868ef42c54f33dd7c002bb2c.exe 2476 4fccfed3868ef42c54f33dd7c002bb2c.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 464 Process not Found -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2476 4fccfed3868ef42c54f33dd7c002bb2c.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2476 wrote to memory of 2368 2476 4fccfed3868ef42c54f33dd7c002bb2c.exe 28 PID 2476 wrote to memory of 2368 2476 4fccfed3868ef42c54f33dd7c002bb2c.exe 28 PID 2476 wrote to memory of 2368 2476 4fccfed3868ef42c54f33dd7c002bb2c.exe 28 PID 2476 wrote to memory of 2368 2476 4fccfed3868ef42c54f33dd7c002bb2c.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\4fccfed3868ef42c54f33dd7c002bb2c.exe"C:\Users\Admin\AppData\Local\Temp\4fccfed3868ef42c54f33dd7c002bb2c.exe"1⤵
- Drops file in Drivers directory
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2476 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\4FCCFE~1.EXE > nul2⤵
- Deletes itself
PID:2368
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
-
Filesize
73KB
MD5b916665ad5f7f82d48870e348cc8b30a
SHA10d598819f7e51ba6ad54d6ce3e026aab3a95f5a5
SHA256906fc301c36ab78ad7682990ab1e05335c64405d2c143ef4eec557a2a85ce045
SHA51289b817bec1e0a3aee1618698d484c29f0973b35f8bac334c67090098c18985b3d2f7a071c1c6cabcf169036df9b5ca6ecd8277c58d574685fb3431cc27572326