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Analysis
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max time kernel
121s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
15/03/2024, 11:53
Static task
static1
Behavioral task
behavioral1
Sample
cb58239ae98ca965490821a8c21a52a0.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
cb58239ae98ca965490821a8c21a52a0.dll
Resource
win10v2004-20240226-en
General
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Target
cb58239ae98ca965490821a8c21a52a0.dll
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Size
36KB
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MD5
cb58239ae98ca965490821a8c21a52a0
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SHA1
c1b4b128e1e14fe9d4694bd50af43b59df075fa7
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SHA256
91d7bd1e350d571def7a53910440752ad046c7c6ccca67024386a106850e4f4a
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SHA512
a2bb478b6942c75246025cd5d7cdf04a2241ee51d833eda29b0d2ed42c0f9608d2873f4c3941e55afed6ddeda4f083273f62b019ee8a3cf94a11ae93f31de626
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SSDEEP
768:TjgiGxy+iC146BDRK97J3+ZFWo2iU+DaLW:nMy+hQYFWuaLW
Malware Config
Signatures
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Modifies AppInit DLL entries 2 TTPs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "regedit.exe /s \"%1\"" rundll32.exe -
Runs .reg file with regedit 1 IoCs
pid Process 2396 regedit.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2492 rundll32.exe 2492 rundll32.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2256 wrote to memory of 2492 2256 rundll32.exe 29 PID 2256 wrote to memory of 2492 2256 rundll32.exe 29 PID 2256 wrote to memory of 2492 2256 rundll32.exe 29 PID 2256 wrote to memory of 2492 2256 rundll32.exe 29 PID 2256 wrote to memory of 2492 2256 rundll32.exe 29 PID 2256 wrote to memory of 2492 2256 rundll32.exe 29 PID 2256 wrote to memory of 2492 2256 rundll32.exe 29 PID 2492 wrote to memory of 2496 2492 rundll32.exe 31 PID 2492 wrote to memory of 2496 2492 rundll32.exe 31 PID 2492 wrote to memory of 2496 2492 rundll32.exe 31 PID 2492 wrote to memory of 2496 2492 rundll32.exe 31 PID 2496 wrote to memory of 2396 2496 cmd.exe 33 PID 2496 wrote to memory of 2396 2496 cmd.exe 33 PID 2496 wrote to memory of 2396 2496 cmd.exe 33 PID 2496 wrote to memory of 2396 2496 cmd.exe 33
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\cb58239ae98ca965490821a8c21a52a0.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\cb58239ae98ca965490821a8c21a52a0.dll,#12⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2492 -
C:\Windows\SysWOW64\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\a.reg3⤵
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Windows\SysWOW64\regedit.exe"regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"4⤵
- Runs .reg file with regedit
PID:2396
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
152B
MD5b100f5324ef74ded0b998e64d07a2e19
SHA140b0d7f51bf2dd8451f1b723d21355c471a5fa46
SHA2563db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042
SHA512c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04