Analysis
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max time kernel
117s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
18-08-2024 14:57
Behavioral task
behavioral1
Sample
75e4864ae7901aef12051eef9c215110N.exe
Resource
win7-20240708-en
General
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Target
75e4864ae7901aef12051eef9c215110N.exe
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Size
35KB
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MD5
75e4864ae7901aef12051eef9c215110
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SHA1
49be1c214e11af091e3a01d41c873609bfb3e5d0
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SHA256
97b5ab3137ee3b3bf7b8c840ec89487951e4ebb86454a7aabd0605f301e322d1
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SHA512
3544c94d593d61b7f87b4abde5f3cbadc54bf27a68acb88e509ed2829ca1a982fbf0afd7e76a8751c972fdf7a3b9e9ce7a0387e4bc1faf9cbc4e2f262f520a29
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SSDEEP
768:+6vjVmakOElpmAsUA7DJHrhto2OsgwAPTUrpiEe7HpB:F8Z0kA7FHlO2OwOTUtKjpB
Malware Config
Extracted
neconyd
http://ow5dirasuek.com/
http://mkkuei4kdsz.com/
http://lousta.net/
Signatures
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Executes dropped EXE 2 IoCs
Processes:
omsecor.exeomsecor.exepid process 552 omsecor.exe 4456 omsecor.exe -
Processes:
resource yara_rule behavioral2/memory/4968-0-0x0000000000400000-0x000000000042D000-memory.dmp upx C:\Users\Admin\AppData\Roaming\omsecor.exe upx behavioral2/memory/552-4-0x0000000000400000-0x000000000042D000-memory.dmp upx behavioral2/memory/4968-6-0x0000000000400000-0x000000000042D000-memory.dmp upx behavioral2/memory/552-8-0x0000000000400000-0x000000000042D000-memory.dmp upx behavioral2/memory/552-11-0x0000000000400000-0x000000000042D000-memory.dmp upx behavioral2/memory/552-14-0x0000000000400000-0x000000000042D000-memory.dmp upx behavioral2/memory/552-15-0x0000000000400000-0x000000000042D000-memory.dmp upx C:\Windows\SysWOW64\omsecor.exe upx behavioral2/memory/4456-19-0x0000000000400000-0x000000000042D000-memory.dmp upx behavioral2/memory/552-20-0x0000000000400000-0x000000000042D000-memory.dmp upx behavioral2/memory/4456-22-0x0000000000400000-0x000000000042D000-memory.dmp upx -
Drops file in System32 directory 2 IoCs
Processes:
omsecor.exeomsecor.exedescription ioc process File opened for modification C:\Windows\SysWOW64\merocz.xc6 omsecor.exe File created C:\Windows\SysWOW64\omsecor.exe omsecor.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
75e4864ae7901aef12051eef9c215110N.exeomsecor.exeomsecor.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 75e4864ae7901aef12051eef9c215110N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language omsecor.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language omsecor.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
75e4864ae7901aef12051eef9c215110N.exeomsecor.exedescription pid process target process PID 4968 wrote to memory of 552 4968 75e4864ae7901aef12051eef9c215110N.exe omsecor.exe PID 4968 wrote to memory of 552 4968 75e4864ae7901aef12051eef9c215110N.exe omsecor.exe PID 4968 wrote to memory of 552 4968 75e4864ae7901aef12051eef9c215110N.exe omsecor.exe PID 552 wrote to memory of 4456 552 omsecor.exe omsecor.exe PID 552 wrote to memory of 4456 552 omsecor.exe omsecor.exe PID 552 wrote to memory of 4456 552 omsecor.exe omsecor.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\75e4864ae7901aef12051eef9c215110N.exe"C:\Users\Admin\AppData\Local\Temp\75e4864ae7901aef12051eef9c215110N.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4968 -
C:\Users\Admin\AppData\Roaming\omsecor.exeC:\Users\Admin\AppData\Roaming\omsecor.exe2⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:552 -
C:\Windows\SysWOW64\omsecor.exeC:\Windows\System32\omsecor.exe3⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:4456
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
35KB
MD5dace5c7936c67d52267a2da8a90fb18d
SHA1c36e1ae6a38169bdbf8f34f9500cfd2ea45cf1cd
SHA25684313a73921ea31fd0f27f322a60e7c961a776a62c8e241a4c7b697655e3e801
SHA5121ce8b02454cde8dfc4abd6fe3a52367a60f6abee5cb2e6be8ece818c28a0529a83620a9209b2f415571ec75ce248be0d081555aee3b43b6579fb32f5a4523f55
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Filesize
35KB
MD50fe651b60d38d1566ae73fbb92b92445
SHA16d3ce9d39860d54acbbe5c00c18ed08796300a37
SHA2563b94a00e5393036f324fcfb62eb5c3f2820169ff8b376960bec52a06677e1106
SHA512fb92f1cbe77e5b90b2b839f0d4a69bacf525d02373825f7016cc51a02893e0e5e88e44a1914762cccb3e7e2f447a880fd3b4e784c740521000a3443829722b7d