Analysis
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max time kernel
148s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
27/11/2022, 00:26
Static task
static1
Behavioral task
behavioral1
Sample
a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe
Resource
win7-20221111-en
General
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Target
a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe
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Size
405KB
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MD5
3fab513ea72b66790a740640d373a607
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SHA1
e469c0f22b903886c630653fc03fb13874c79376
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SHA256
a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06
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SHA512
955a4c564bbf9a9cac798883aeb2df10b503375df6f5baa635a013e5130a8728a8b5c5883555d6c9ebe69b3daf8bb9f1303cb0ec393c1723a96549599e8aea2b
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SSDEEP
6144:CoUdF36jIOMPqT2uNLgGzuNQaQPzMqGOY+uoc4OERP493fLk:CoUdF36cOMiZ+QF7MqLck
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe File opened for modification C:\Windows\assembly\Desktop.ini a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 384 set thread context of 3084 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 84 -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe File created C:\Windows\assembly\Desktop.ini a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe File opened for modification C:\Windows\assembly\Desktop.ini a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4812 schtasks.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3084 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3084 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3084 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 384 wrote to memory of 4812 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 81 PID 384 wrote to memory of 4812 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 81 PID 384 wrote to memory of 4812 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 81 PID 384 wrote to memory of 1776 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 83 PID 384 wrote to memory of 1776 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 83 PID 384 wrote to memory of 1776 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 83 PID 384 wrote to memory of 3084 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 84 PID 384 wrote to memory of 3084 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 84 PID 384 wrote to memory of 3084 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 84 PID 384 wrote to memory of 3084 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 84 PID 384 wrote to memory of 3084 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 84 PID 384 wrote to memory of 3084 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 84 PID 384 wrote to memory of 3084 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 84 PID 384 wrote to memory of 3084 384 a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe"C:\Users\Admin\AppData\Local\Temp\a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:384 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Update\Google Update" /XML "C:\Users\Admin\AppData\Local\Temp\axxxxx.xml"2⤵
- Creates scheduled task(s)
PID:4812
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C:\Users\Admin\AppData\Local\Temp\a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe"C:\Users\Admin\AppData\Local\Temp\a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe"2⤵PID:1776
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C:\Users\Admin\AppData\Local\Temp\a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe"C:\Users\Admin\AppData\Local\Temp\a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe"2⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3084
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\a9948b9d207375c838170f10d4d9f2b105c7c50161eb87302283bcc3252efe06.exe.log
Filesize312B
MD56dba4702b346903da02f7dd9e839a128
SHA1d69f255866f30a87c9eca8312d425c47059bf15e
SHA25629d145faac0201870c39b9119894f78694a776e03fc8f79349bdf92e56a65bcd
SHA51233afef187e806838717238881aaaf41272f8b484fcfe97a85057fd43a7eeb119df813d6023d2ee770aa22a067f7e9d532dd1c30b512f9c48b76f838615863e1d
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Filesize
1KB
MD500529ecd157323a73d671f070d23bc1b
SHA1620e13b5fcaafd6be509c5800fc294add76582f0
SHA25640b16d40366947ad9b9781a1f1606671be1552bd7c8b104ff715714f9d61f3f5
SHA5126c67caaec8a7b4a50518a19a92998693e66058f8166f3b0dfc26619d1ebcf6a6f0af199ae1cf9f72eb10cfb5fd1de22dc06d0b7c10d62d559d5f3dd54f84c254