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Analysis
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max time kernel
77s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
06/12/2022, 19:46
Static task
static1
Behavioral task
behavioral1
Sample
18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe
Resource
win10v2004-20220901-en
General
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Target
18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe
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Size
624KB
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MD5
40eca80dee3b9b38066922b011de8c0f
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SHA1
3182ae618e6cd6a89d2975184eb161df1644615d
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SHA256
18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0
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SHA512
246a57515902a9dd79b8848d9256bf9833f8839b836ba6800e673580f92eebe85634b0761d3888e9bb98ad14fef0bc1b50e642b9acd29fe38ed6e9ce08683c4e
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SSDEEP
3072:m55OBNpd9+QE5cujcA5RUPH09B1KNjx6QgsdGVK1T8SHgszpd9+QE5cujcA5RUPX:XqQQcPkR6HjxYK1DqQQcPkR6Hjx
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\mscfile\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MouDNS2.exe" reg.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\mscfile\shell\open\command reg.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\mscfile reg.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\mscfile\shell reg.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\mscfile\shell\open reg.exe -
Modifies registry key 1 TTPs 2 IoCs
pid Process 1484 reg.exe 692 reg.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 888 wrote to memory of 692 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 28 PID 888 wrote to memory of 692 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 28 PID 888 wrote to memory of 692 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 28 PID 888 wrote to memory of 692 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 28 PID 888 wrote to memory of 1420 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 30 PID 888 wrote to memory of 1420 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 30 PID 888 wrote to memory of 1420 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 30 PID 888 wrote to memory of 1420 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 30 PID 1420 wrote to memory of 1144 1420 cmd.exe 32 PID 1420 wrote to memory of 1144 1420 cmd.exe 32 PID 1420 wrote to memory of 1144 1420 cmd.exe 32 PID 888 wrote to memory of 1484 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 33 PID 888 wrote to memory of 1484 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 33 PID 888 wrote to memory of 1484 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 33 PID 888 wrote to memory of 1484 888 18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe"C:\Users\Admin\AppData\Local\Temp\18da91d0bb86f74e55a5388ceabd89b9f5e23fec329ccbcf5d1e50c3e2ba14e0.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:888 -
C:\Windows\System32\reg.exe"C:\Windows\System32\reg.exe" add hkcu\software\classes\mscfile\shell\open\command /ve /d "C:\Users\Admin\AppData\Local\Temp\MouDNS2.exe" /f2⤵
- Modifies registry class
- Modifies registry key
PID:692
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C:\Windows\system32\cmd.execmd /c start eventvwr.exe2⤵
- Suspicious use of WriteProcessMemory
PID:1420 -
C:\Windows\system32\eventvwr.exeeventvwr.exe3⤵PID:1144
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C:\Windows\System32\reg.exe"C:\Windows\System32\reg.exe" delete hkcu\software\classes\mscfile /f >nul 2>&12⤵
- Modifies registry key
PID:1484
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