Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
06-03-2024 08:34
Static task
static1
Behavioral task
behavioral1
Sample
b6fc78a652f0aee0591ba70c1e664e04.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
b6fc78a652f0aee0591ba70c1e664e04.exe
Resource
win10v2004-20240226-en
General
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Target
b6fc78a652f0aee0591ba70c1e664e04.exe
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Size
192KB
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MD5
b6fc78a652f0aee0591ba70c1e664e04
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SHA1
432da33aea15177377c3ebed348276bd54fa3c04
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SHA256
984e304cd12886ce3157e4828fef366390c30200f1655954c9796d0f1a075abf
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SHA512
0040cf0056771bfe256f0cd2e3f0d7b8b53af26b744890d746edbfa3bc24d0f951ccdcb919256e563121fb7d6f094059e5886145c2f9e62693590cc93834365a
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SSDEEP
3072:FgAzaW6CRTHpfC066Bbu10Tjwnp/HqUQXNC//JBOl6pCgp0DkaHtJtmgpc:aQaW3RTJfgmo0TjzrXNRlXgp8bt
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 1936 cmd.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\found.exe b6fc78a652f0aee0591ba70c1e664e04.exe File opened for modification C:\Windows\SysWOW64\found.exe b6fc78a652f0aee0591ba70c1e664e04.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Debug\found32.dll b6fc78a652f0aee0591ba70c1e664e04.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{18EDD7A0-87EF-45B7-85CF-6A7E1341E2BB}\InProcServer32\ThreadingModel = "Apartment" regedit.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{18EDD7A0-87EF-45B7-85CF-6A7E1341E2BB} regedit.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{18EDD7A0-87EF-45B7-85CF-6A7E1341E2BB}\ = "url" regedit.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{18EDD7A0-87EF-45B7-85CF-6A7E1341E2BB}\InProcServer32 regedit.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{18EDD7A0-87EF-45B7-85CF-6A7E1341E2BB}\InProcServer32\ = "C:\\Windows\\Debug\\found32.dll" regedit.exe -
Runs .reg file with regedit 1 IoCs
pid Process 2544 regedit.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2908 wrote to memory of 2568 2908 b6fc78a652f0aee0591ba70c1e664e04.exe 28 PID 2908 wrote to memory of 2568 2908 b6fc78a652f0aee0591ba70c1e664e04.exe 28 PID 2908 wrote to memory of 2568 2908 b6fc78a652f0aee0591ba70c1e664e04.exe 28 PID 2908 wrote to memory of 2568 2908 b6fc78a652f0aee0591ba70c1e664e04.exe 28 PID 2908 wrote to memory of 1936 2908 b6fc78a652f0aee0591ba70c1e664e04.exe 29 PID 2908 wrote to memory of 1936 2908 b6fc78a652f0aee0591ba70c1e664e04.exe 29 PID 2908 wrote to memory of 1936 2908 b6fc78a652f0aee0591ba70c1e664e04.exe 29 PID 2908 wrote to memory of 1936 2908 b6fc78a652f0aee0591ba70c1e664e04.exe 29 PID 2568 wrote to memory of 2544 2568 cmd.exe 32 PID 2568 wrote to memory of 2544 2568 cmd.exe 32 PID 2568 wrote to memory of 2544 2568 cmd.exe 32 PID 2568 wrote to memory of 2544 2568 cmd.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\b6fc78a652f0aee0591ba70c1e664e04.exe"C:\Users\Admin\AppData\Local\Temp\b6fc78a652f0aee0591ba70c1e664e04.exe"1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Windows\SysWOW64\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\fnous.bat2⤵
- Suspicious use of WriteProcessMemory
PID:2568 -
C:\Windows\SysWOW64\regedit.exeregedit /s C:\Users\Admin\AppData\Local\Temp\nothks.reg3⤵
- Modifies registry class
- Runs .reg file with regedit
PID:2544
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C:\Windows\SysWOW64\cmd.execmd /c erase /F "C:\Users\Admin\AppData\Local\Temp\b6fc78a652f0aee0591ba70c1e664e04.exe"2⤵
- Deletes itself
PID:1936
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
126B
MD57ab275c1bc8750fe49119429e12ab856
SHA1ea556c59c5d3f2be584d2e208ba42a1540f46986
SHA2568d96bacc0e4651d7b8c27613f3f721bb89ca9fb9430bab66b2ef90bfe8cb5bb3
SHA5127fe4bce942523a6adde6d83fc2f63302283f3e0642db4f9f650d50ba8f6f2b7b587229736521615d54b596f24a23146ab7aecb512c145b8dc4b81050ac3576c1
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Filesize
403B
MD5e1db5e72383ca2535cc04d98efb0f6e6
SHA1b3407d394658ad2d4ef59179fd2ddd419a1dc1d7
SHA25652a9ba0c766a4da941eb674797f1770712e64e2d2104271b4ff6368a45ba5c31
SHA5126ac5c144d0103b722a7203b04f79b3c691ff1393b59555a7ccd454a10a64e2c60111e9e45dc1fdaa3fdf180fac2b0416250aa0180a946c772bd3f1225c15c095