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Analysis
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max time kernel
45s -
max time network
33s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
04/12/2022, 09:58
Behavioral task
behavioral1
Sample
b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe
Resource
win7-20221111-en
General
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Target
b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe
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Size
770KB
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MD5
beaa58cf08a9bb3835519a5a93008a38
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SHA1
f07d55c156a2ae598d30ec059465b4d59b399ccb
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SHA256
b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c
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SHA512
6fb280bbe7dca1959488bf6cd05e97be3fa2f39853a98a7b68cf4cf280e6aa2ec13f1c8bc78b83bfe4db325a6e8554f608335a3f2a5a9094455a246b72761565
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SSDEEP
12288:iIGwgRw9G/U3yf4EpRMfMw0YyUpiOJSI5+M0KIiSlW3dscVPh9+US:d99MIaNpRMfrdhpFJN5r3zSlcVP+r
Malware Config
Signatures
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Modifies Installed Components in the registry 2 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{9B71D88C-C598-4935-C5D1-43AA4DB90836} b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{9B71D88C-C598-4935-C5D1-43AA4DB90836}\stubpath = "C:\\Windows\\system32\\winrar.exe s" b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\SOFTWARE\Microsoft\Active Setup\Installed Components b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe -
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Wine b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe -
resource yara_rule behavioral1/memory/2016-54-0x0000000000400000-0x00000000004C4000-memory.dmp themida behavioral1/memory/2016-55-0x0000000000400000-0x00000000004C4000-memory.dmp themida behavioral1/memory/2016-56-0x0000000000400000-0x00000000004C4000-memory.dmp themida -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\hahaaha = "C:\\Windows\\system32\\winrar.exe" b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\hahaaha = "C:\\Windows\\system32\\winrar.exe" b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\winrar.exe b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe File opened for modification C:\Windows\SysWOW64\winrar.exe b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2016 wrote to memory of 1248 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe 15 PID 2016 wrote to memory of 1248 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe 15 PID 2016 wrote to memory of 628 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe 28 PID 2016 wrote to memory of 628 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe 28 PID 2016 wrote to memory of 628 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe 28 PID 2016 wrote to memory of 628 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe 28 PID 2016 wrote to memory of 628 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe 28 PID 2016 wrote to memory of 628 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe 28 PID 2016 wrote to memory of 628 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe 28 PID 2016 wrote to memory of 628 2016 b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe 28
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1248
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C:\Users\Admin\AppData\Local\Temp\b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe"C:\Users\Admin\AppData\Local\Temp\b2e60081d5b9df0dcdcbc6791b81d461cdb3986ff617c48e3b591db3c276d26c.exe"2⤵
- Modifies Installed Components in the registry
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"3⤵PID:628
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