Analysis
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max time kernel
135s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
31-05-2024 01:48
Static task
static1
Behavioral task
behavioral1
Sample
fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.exe
Resource
win10v2004-20240508-en
General
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Target
fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.exe
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Size
3.2MB
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MD5
13ca60d73776b420ada5cc15848f8dfb
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SHA1
22bece82795e9c60d76c19f22f777f3b19af10d8
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SHA256
fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82
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SHA512
7074d3fb777563a94dde036cab647cfc72c115e140343ec25f6921a5689b4d381b60012dfa0fb2b1ea17621ff90ca4c225cd3f2e71c1a6bab935c33610f4dafc
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SSDEEP
98304:VSiRz+JwCh4p8zdpHzEugKdTHvjgJLTiH7BUB:3zI48v1r1EsY
Malware Config
Signatures
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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Executes dropped EXE 1 IoCs
Processes:
fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmppid process 2324 fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp -
Loads dropped DLL 3 IoCs
Processes:
fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmppid process 2324 fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp 2324 fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp 2324 fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 3132 2324 WerFault.exe fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp 516 2324 WerFault.exe fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp -
Script User-Agent 3 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 7 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 16 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 30 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.exedescription pid process target process PID 972 wrote to memory of 2324 972 fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.exe fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp PID 972 wrote to memory of 2324 972 fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.exe fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp PID 972 wrote to memory of 2324 972 fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.exe fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.exe"C:\Users\Admin\AppData\Local\Temp\fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:972 -
C:\Users\Admin\AppData\Local\Temp\is-1O73J.tmp\fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp"C:\Users\Admin\AppData\Local\Temp\is-1O73J.tmp\fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp" /SL5="$601EC,2484196,893952,C:\Users\Admin\AppData\Local\Temp\fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2324 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2324 -s 19603⤵
- Program crash
PID:3132 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2324 -s 19803⤵
- Program crash
PID:516
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2324 -ip 23241⤵PID:4892
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2324 -ip 23241⤵PID:2920
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\is-1O73J.tmp\fbb5302b06f7e6824ecdaf59162f3a08557cac0efe6b40b4502eab60ecd04d82.tmp
Filesize3.0MB
MD55c6dc4f810bf08224a748763e915d294
SHA157e9256e9aeaafd45e4bdc8461f5fcb73f65302e
SHA25644f80edcbb47c543b362916340af40e5e0f5fa38c1c17713af1ab463d1389e9d
SHA5128a834ad640ea17ff74d4956d968fe4f5dc657f8fe152eaab778363b2d301733eca2ae01227e20ed9ed88b9eaabe2914a1e388ecea214effdce6725dd28164a15
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Filesize
46KB
MD5564f2dfb6bef1f47798dfb5d182232f0
SHA1290a5ad705a85e7fb26efcdc5374cd39738ad242
SHA256671fb4649ddd8428c7f6fd1e14b30fd4735efbbb8c142e2662e157d87f96c9c0
SHA512492091b1ecb0e36f3d01a7b6d516d836224966dc6e8ec9bcdc2254d252f9530c9b9b45ac10d5216761d557cda2454e3d53060b42e55f6a95631baca29199926b
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Filesize
70KB
MD5d3110fb775ee7fd24426503d67840c25
SHA154f649c8bf3af2ad3a4d92cd8b1397bad1a49a75
SHA256f8392390dc81756e79ec5f359dbdcac3b4bd219b5188a429b814fc51aabb6e36
SHA512f6b79f728be17c9060edb2df2dac2b0f59a4dffd8c416e7e957bc3fa4696f4237e5969647309f5425a6297f189e351e20c99c642f90d1476050285929657c32f