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Analysis
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max time kernel
151s -
max time network
118s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
06/12/2022, 21:02
Behavioral task
behavioral1
Sample
f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb.dll
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral2
Sample
f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb.dll
Resource
win10v2004-20220901-en
windows10-2004-x64
General
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Target
f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb.dll
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Size
34KB
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MD5
0d9f1511263a1b7f7e5b90993e34e371
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SHA1
18066ad56d0c0a3cf6a475d9a336ebad2d8a5dc9
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SHA256
f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb
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SHA512
286b0087ff4286bb33491158f6686e4056e892e803b7f4391c45ed81b7cafc5570d75bc01c0d6fc39dda3ee8742a9e98c41b06ef1036fe8896271d28c9da5e43
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SSDEEP
768:Utew0FEJyPIBO44Pa/kvSnLrXihjLMX+dsYNnbcuyD7UJfq:UtByPj4+qL72j0csQnouy8Jfq
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 2 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0002000000022df0-135.dat acprotect behavioral2/files/0x0002000000022df0-136.dat acprotect -
resource yara_rule behavioral2/memory/1884-133-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral2/files/0x0002000000022df0-135.dat upx behavioral2/files/0x0002000000022df0-136.dat upx behavioral2/memory/3284-137-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral2/memory/1884-138-0x0000000010000000-0x000000001001E000-memory.dmp upx -
Loads dropped DLL 1 IoCs
pid Process 3284 rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\msisue.dll rundll32.exe File opened for modification C:\Windows\msisue.dll rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb.dll,1314612079,-89619386,-1814625877" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe 3284 rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4572 wrote to memory of 1884 4572 rundll32.exe 76 PID 4572 wrote to memory of 1884 4572 rundll32.exe 76 PID 4572 wrote to memory of 1884 4572 rundll32.exe 76 PID 1884 wrote to memory of 3284 1884 rundll32.exe 77 PID 1884 wrote to memory of 3284 1884 rundll32.exe 77 PID 1884 wrote to memory of 3284 1884 rundll32.exe 77
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4572 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb.dll,#12⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1884 -
C:\Windows\SysWOW64\rundll32.exerundll32 "C:\Windows\msisue.dll",_RunAs@163⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3284
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
34KB
MD50d9f1511263a1b7f7e5b90993e34e371
SHA118066ad56d0c0a3cf6a475d9a336ebad2d8a5dc9
SHA256f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb
SHA512286b0087ff4286bb33491158f6686e4056e892e803b7f4391c45ed81b7cafc5570d75bc01c0d6fc39dda3ee8742a9e98c41b06ef1036fe8896271d28c9da5e43
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Filesize
34KB
MD50d9f1511263a1b7f7e5b90993e34e371
SHA118066ad56d0c0a3cf6a475d9a336ebad2d8a5dc9
SHA256f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb
SHA512286b0087ff4286bb33491158f6686e4056e892e803b7f4391c45ed81b7cafc5570d75bc01c0d6fc39dda3ee8742a9e98c41b06ef1036fe8896271d28c9da5e43