Analysis
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max time kernel
149s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
31-12-2023 05:27
Behavioral task
behavioral1
Sample
29fb00fec03fa4428682b7c4f98278d4.dll
Resource
win7-20231129-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
29fb00fec03fa4428682b7c4f98278d4.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
6 signatures
150 seconds
General
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Target
29fb00fec03fa4428682b7c4f98278d4.dll
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Size
93KB
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MD5
29fb00fec03fa4428682b7c4f98278d4
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SHA1
aad473fd7592e3517c9d8acfa374dad0e153262f
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SHA256
eeea39ef2c85647daaf61960cb1dd1dc762f7dd456ffed7671ee0fcb162898e9
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SHA512
6947be2228a0ae0423a50154c99795a1ecc945e6541ae8059469dd0a9fa824395e82f92ec8c660c79e16ecaf034a6050a73a8d1f41c3ffcf57fd9c4dc57e11e6
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SSDEEP
1536:tTi92M749gVNuAKlggBYQoUyFFKJHKw4QXIEbYjVJ/DyzkAIJZ0814zHPsJSDPw8:NuVIAuAKeguQoUyRwvYEbYjVdDyYbZ0T
Score
8/10
Malware Config
Signatures
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Modifies Shared Task Scheduler registry keys 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\SharedTaskScheduler\{93C6092B-A4D7-5F82-71A4-0A3D70A3D7F9} rundll32.exe -
resource yara_rule behavioral1/memory/2384-7-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-3-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-0-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-8-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-9-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-10-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-11-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-12-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-13-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-14-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-15-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-16-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-17-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-18-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-19-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-20-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral1/memory/2384-21-0x0000000000400000-0x0000000000450000-memory.dmp upx -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\N.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\N.dll rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{93C6092B-A4D7-5F82-71A4-0A3D70A3D7F9}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{93C6092B-A4D7-5F82-71A4-0A3D70A3D7F9} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{93C6092B-A4D7-5F82-71A4-0A3D70A3D7F9}\ rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{93C6092B-A4D7-5F82-71A4-0A3D70A3D7F9}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{93C6092B-A4D7-5F82-71A4-0A3D70A3D7F9}\InprocServer32\ = "C:\\Windows\\SysWow64\\N.dll" rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2240 wrote to memory of 2384 2240 rundll32.exe 16 PID 2240 wrote to memory of 2384 2240 rundll32.exe 16 PID 2240 wrote to memory of 2384 2240 rundll32.exe 16 PID 2240 wrote to memory of 2384 2240 rundll32.exe 16 PID 2240 wrote to memory of 2384 2240 rundll32.exe 16 PID 2240 wrote to memory of 2384 2240 rundll32.exe 16 PID 2240 wrote to memory of 2384 2240 rundll32.exe 16
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\29fb00fec03fa4428682b7c4f98278d4.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\29fb00fec03fa4428682b7c4f98278d4.dll,#12⤵
- Modifies Shared Task Scheduler registry keys
- Drops file in System32 directory
- Modifies registry class
PID:2384
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