Analysis
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max time kernel
146s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
25/12/2023, 22:08
Behavioral task
behavioral1
Sample
3f0c37525a85f6c12aa41919da0d3cbd.dll
Resource
win7-20231215-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
3f0c37525a85f6c12aa41919da0d3cbd.dll
Resource
win10v2004-20231222-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
3f0c37525a85f6c12aa41919da0d3cbd.dll
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Size
34KB
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MD5
3f0c37525a85f6c12aa41919da0d3cbd
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SHA1
20a3abc958ed1eb64a8815546e6ff7294987ffb4
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SHA256
b86fac745aa657ac667809a87def45a9fe2240370f240682dc8edf9b3549a764
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SHA512
cc4542ec29b709d25f208cde2f363ac5169ba35599203e65d5be793ab202cf2776ce2ccc0db81451fa731e8f0a4efac46ce8d77ed2856997ee58dd24b09ba4df
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SSDEEP
768:mKFRlOsV5E68dAERSx+5eRxYi/kdo8d4hTuqoMbZoaHgcnbcuyD7UCsq:maRlOW5Ex95u/oos4hb1orcnouy8Csq
Score
7/10
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000a00000001224d-6.dat acprotect -
resource yara_rule behavioral1/memory/3036-2-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral1/memory/3036-1-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral1/memory/3036-0-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral1/memory/2904-7-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral1/files/0x000a00000001224d-6.dat upx behavioral1/memory/3036-8-0x0000000010000000-0x000000001001E000-memory.dmp upx behavioral1/memory/2904-10-0x0000000010000000-0x000000001001E000-memory.dmp upx -
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\mspime.dll rundll32.exe File opened for modification C:\Windows\mspime.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} = "3f0c37525a85f6c12aa41919da0d3cbd.dll,1312811747,1525379927,-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 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe 2904 rundll32.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2688 wrote to memory of 3036 2688 rundll32.exe 15 PID 2688 wrote to memory of 3036 2688 rundll32.exe 15 PID 2688 wrote to memory of 3036 2688 rundll32.exe 15 PID 2688 wrote to memory of 3036 2688 rundll32.exe 15 PID 2688 wrote to memory of 3036 2688 rundll32.exe 15 PID 2688 wrote to memory of 3036 2688 rundll32.exe 15 PID 2688 wrote to memory of 3036 2688 rundll32.exe 15 PID 3036 wrote to memory of 2904 3036 rundll32.exe 26 PID 3036 wrote to memory of 2904 3036 rundll32.exe 26 PID 3036 wrote to memory of 2904 3036 rundll32.exe 26 PID 3036 wrote to memory of 2904 3036 rundll32.exe 26 PID 3036 wrote to memory of 2904 3036 rundll32.exe 26 PID 3036 wrote to memory of 2904 3036 rundll32.exe 26 PID 3036 wrote to memory of 2904 3036 rundll32.exe 26
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3f0c37525a85f6c12aa41919da0d3cbd.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2688 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3f0c37525a85f6c12aa41919da0d3cbd.dll,#12⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3036 -
C:\Windows\SysWOW64\rundll32.exerundll32 "C:\Windows\mspime.dll",_RunAs@163⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2904
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
11KB
MD55b7d3cfe5ad2a76180004f106b416bfa
SHA1698c9cfc3133180c667f036ed5b4b85b685694c6
SHA25621ce2dce853af885d9eb12eec5232a96fbae0baafeb27fbf859908d014f02645
SHA512115188926cbf51781654f174f52a5fbff84c8243cf15b7e73d656046f3a29c6ac8d02fcbf0867320e197980345cc1e02cf9e2a551d58b969eb06d6261442cdc6