Analysis
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max time kernel
144s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
25-01-2024 19:00
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231215-en
windows7-x64
4 signatures
150 seconds
General
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Target
file.exe
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Size
727KB
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MD5
8b5cf3d102548da37888f34d3d468e27
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SHA1
823aa91b6e4ecf3bb68a2154a122e6a9ffc7bf89
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SHA256
3e8e1eae92427c05d36bbc665721382af5972780e0a7cd44e33f63684b1cf3e2
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SHA512
da525ea8b851739940fcce41fae69b4fa7942c21e2ac7fca79fd468e247c5ce0e8fc105a9288290ff79c064a5d200e7214f67ea070114da1fb335b152a5ac10b
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SSDEEP
12288:mh1Fk70TnvjcXHKkdNTYkpfxQmclBuFTEAtvqsuIGnyd30w4KA9LdX+/UwS0iSbq:Ak70Trc31dNckBxQmUBuFTEAtCsuI9d8
Malware Config
Extracted
Family
lumma
C2
https://willpoweragreebokkskiew.site/api
https://braidfadefriendklypk.site/api
Signatures
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.NET Reactor proctector 21 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
Processes:
resource yara_rule behavioral2/memory/2388-0-0x0000000004D40000-0x0000000004DE6000-memory.dmp net_reactor behavioral2/memory/2388-5-0x0000000002750000-0x00000000027F6000-memory.dmp net_reactor behavioral2/memory/2388-7-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-6-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-9-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-27-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-37-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-41-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-39-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-35-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-33-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-31-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-29-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-25-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-23-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-21-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-19-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-17-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-15-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-13-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor behavioral2/memory/2388-11-0x0000000002750000-0x00000000027EF000-memory.dmp net_reactor -
Suspicious use of SetThreadContext 1 IoCs
Processes:
file.exedescription pid process target process PID 2388 set thread context of 4688 2388 file.exe RegAsm.exe -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 4460 4688 WerFault.exe RegAsm.exe 3580 4688 WerFault.exe RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
file.exedescription pid process Token: SeDebugPrivilege 2388 file.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
file.exedescription pid process target process PID 2388 wrote to memory of 4688 2388 file.exe RegAsm.exe PID 2388 wrote to memory of 4688 2388 file.exe RegAsm.exe PID 2388 wrote to memory of 4688 2388 file.exe RegAsm.exe PID 2388 wrote to memory of 4688 2388 file.exe RegAsm.exe PID 2388 wrote to memory of 4688 2388 file.exe RegAsm.exe PID 2388 wrote to memory of 4688 2388 file.exe RegAsm.exe PID 2388 wrote to memory of 4688 2388 file.exe RegAsm.exe PID 2388 wrote to memory of 4688 2388 file.exe RegAsm.exe PID 2388 wrote to memory of 4688 2388 file.exe RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2388 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵PID:4688
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4688 -s 10923⤵
- Program crash
PID:4460
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4688 -s 11923⤵
- Program crash
PID:3580
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4688 -ip 46881⤵PID:4236
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4688 -ip 46881⤵PID:3732