Analysis
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max time kernel
145s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
29/03/2024, 22:38
Static task
static1
Behavioral task
behavioral1
Sample
7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460.dll
Resource
win7-20240221-en
General
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Target
7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460.dll
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Size
236KB
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MD5
f8a1fc2e85cb8bbf67f888b9f051a996
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SHA1
6fe8b7663f9f22ab5894c9c8b27ddde78df65e76
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SHA256
7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460
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SHA512
d6026c317094de2ae70f07cd87efb1e00db91a6ac4e51668e23e4d2f63717beb6121f04db13b13a94f97a1d6a621619588458a3af36869cc7e373e1a88d11e2b
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SSDEEP
3072:63cNK7Xv5aaxoU5dwI/8xJTkO2RSOy+k/juCYD8iRVoQskq4dq:ZMLPpUxJT0x5kbuOiRVoQ+4Y
Malware Config
Signatures
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UPX dump on OEP (original entry point) 2 IoCs
resource yara_rule behavioral2/memory/1520-6-0x0000000000400000-0x0000000000432000-memory.dmp UPX behavioral2/memory/1520-7-0x00000000005A0000-0x00000000005D2000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 1520 rundll32mgr.exe -
Loads dropped DLL 1 IoCs
pid Process 1520 rundll32mgr.exe -
resource yara_rule behavioral2/memory/1520-6-0x0000000000400000-0x0000000000432000-memory.dmp upx -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 5068 1520 WerFault.exe 87 -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1516 wrote to memory of 768 1516 rundll32.exe 84 PID 1516 wrote to memory of 768 1516 rundll32.exe 84 PID 1516 wrote to memory of 768 1516 rundll32.exe 84 PID 768 wrote to memory of 1520 768 rundll32.exe 87 PID 768 wrote to memory of 1520 768 rundll32.exe 87 PID 768 wrote to memory of 1520 768 rundll32.exe 87
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1516 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460.dll,#12⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:768 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1520 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1520 -s 5364⤵
- Program crash
PID:5068
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1520 -ip 15201⤵PID:3044
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
1.6MB
MD54f3387277ccbd6d1f21ac5c07fe4ca68
SHA1e16506f662dc92023bf82def1d621497c8ab5890
SHA256767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA5129da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219
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Filesize
157KB
MD52ad7467eeceedd64b8bd4f6e04c3cd49
SHA1d6c5d9878dc49ae9b531d61283609e207154a921
SHA2562aab17b2f18dfb70cd737b27b1a438ad8878889070a6e025b3684483054f60c9
SHA5127a647d4a8de90d11cd5afb82ace8354869af0893f28afcf9491d1d4de421315d9a394a5d3462d88c0eff6c5a7a4ed41897d8d0498b59b4b7428ddbb61786be2a