Analysis
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max time kernel
83s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
04/10/2022, 04:24
Static task
static1
Behavioral task
behavioral1
Sample
b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe
Resource
win10v2004-20220812-en
General
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Target
b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe
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Size
344KB
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MD5
5e5c155a8fdf8d04882a15c9b8a60390
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SHA1
d4626e3249c89be8018d2d47b8e172209014aaa7
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SHA256
b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47
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SHA512
6a2a2923cf7c9edfd0ccf6f525bc0e0d809b38f70c3d7518b66763eb279fe337033c2cae371ed81f3928103b68a1f03e4c9afcdace85e16fde7789820ec3a601
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SSDEEP
6144:gqCSaCaTDTXmNOzCpjjhjNAW/g1sIYstrH1dAVZru/rqzcIBe/rUc19n:TZ4TDDmNOzKnDAWo1s5MV6VIzqwr/gc7
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe -
Executes dropped EXE 1 IoCs
pid Process 4844 64DE853A0701BCB3.TMP -
resource yara_rule behavioral2/files/0x0003000000000725-133.dat upx behavioral2/files/0x0003000000000725-135.dat upx behavioral2/memory/4844-139-0x0000000000400000-0x0000000000428000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\FrameWork = "C:\\Windows\\system32\\WinMain.exe 6666" b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\WinMain.exe b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe File opened for modification C:\Windows\SysWOW64\WinMain.exe b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\dextor32.exe 64DE853A0701BCB3.TMP -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1136 b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4900 wrote to memory of 4844 4900 b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe 83 PID 4900 wrote to memory of 4844 4900 b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe 83 PID 4900 wrote to memory of 4844 4900 b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe 83 PID 4900 wrote to memory of 4808 4900 b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe 84 PID 4900 wrote to memory of 4808 4900 b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe 84 PID 4900 wrote to memory of 4808 4900 b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe 84 PID 4900 wrote to memory of 1136 4900 b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe 85 PID 4900 wrote to memory of 1136 4900 b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe 85 PID 4900 wrote to memory of 1136 4900 b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe"C:\Users\Admin\AppData\Local\Temp\b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4900 -
C:\Users\Admin\AppData\Local\Temp\64DE853A0701BCB3.TMP"C:\Users\Admin\AppData\Local\Temp\64DE853A0701BCB3.TMP"2⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:4844
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C:\Users\Admin\AppData\Local\Temp\b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe77772⤵
- Modifies visiblity of hidden/system files in Explorer
- Adds Run key to start application
- Drops file in System32 directory
PID:4808
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C:\Users\Admin\AppData\Local\Temp\b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe99992⤵
- Suspicious use of AdjustPrivilegeToken
PID:1136
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
56KB
MD530589d17d5655ae16c45f384f2043981
SHA1410f2ff03a3e9d2b372fab9656181c27dd47b116
SHA256634edaa4e06f45612c3f53380bcfe018e208864490013fefb11f13fa0fca8439
SHA5121d58c3f7458a4ba2fafd252935faaaaf01bf15937b927ba61de4d842413d7641846898456ebeef6f08e713cdb52db46501142b7ccc548a94a186faaa0ed054fa
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Filesize
56KB
MD530589d17d5655ae16c45f384f2043981
SHA1410f2ff03a3e9d2b372fab9656181c27dd47b116
SHA256634edaa4e06f45612c3f53380bcfe018e208864490013fefb11f13fa0fca8439
SHA5121d58c3f7458a4ba2fafd252935faaaaf01bf15937b927ba61de4d842413d7641846898456ebeef6f08e713cdb52db46501142b7ccc548a94a186faaa0ed054fa