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Analysis
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max time kernel
90s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
28/10/2022, 20:09
Static task
static1
Behavioral task
behavioral1
Sample
9a2da43c31770737e087aa5d89375ad38edfb5d1ccf36d7f8e4adee543ae7b74.dll
Resource
win7-20220901-en
General
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Target
9a2da43c31770737e087aa5d89375ad38edfb5d1ccf36d7f8e4adee543ae7b74.dll
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Size
451KB
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MD5
0cc2459d49e98fba1523fd625dadc7d0
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SHA1
6aa7d7b5795de1e8d88deb12e4f7074194ddefc6
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SHA256
9a2da43c31770737e087aa5d89375ad38edfb5d1ccf36d7f8e4adee543ae7b74
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SHA512
c19ff9f461a34f0b66aaa988db4b3f555f9a62eeef256aef2db570c5aafb7be027e5d0567e881706e5d0447dbb6a61061905d9b8be834ebd72da58e0e10705c9
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SSDEEP
6144:IxlKdRE3WBmv8QdDHViAsl5FRu56zQwmSkY2G5L8v1kcRv4Dyg32+LOpqOQXFTyP:iWBohJVi/KyzfMGt8uJn4I1y
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4836 regsvr32mgr.exe -
resource yara_rule behavioral2/memory/4836-138-0x0000000000400000-0x000000000042A000-memory.dmp upx -
Loads dropped DLL 1 IoCs
pid Process 4836 regsvr32mgr.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\regsvr32mgr.exe regsvr32.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 1532 2468 WerFault.exe 77 4736 4836 WerFault.exe 79 -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4740 wrote to memory of 2468 4740 regsvr32.exe 77 PID 4740 wrote to memory of 2468 4740 regsvr32.exe 77 PID 4740 wrote to memory of 2468 4740 regsvr32.exe 77 PID 2468 wrote to memory of 4836 2468 regsvr32.exe 79 PID 2468 wrote to memory of 4836 2468 regsvr32.exe 79 PID 2468 wrote to memory of 4836 2468 regsvr32.exe 79
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\9a2da43c31770737e087aa5d89375ad38edfb5d1ccf36d7f8e4adee543ae7b74.dll1⤵
- Suspicious use of WriteProcessMemory
PID:4740 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\9a2da43c31770737e087aa5d89375ad38edfb5d1ccf36d7f8e4adee543ae7b74.dll2⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2468 -
C:\Windows\SysWOW64\regsvr32mgr.exeC:\Windows\SysWOW64\regsvr32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4836 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4836 -s 5204⤵
- Program crash
PID:4736
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2468 -s 6683⤵
- Program crash
PID:1532
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2468 -ip 24681⤵PID:440
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4836 -ip 48361⤵PID:2892
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
106KB
MD5fe36fb1073e6f8fa14d7250501a29aaf
SHA16c7e01278362797dabcff3e666b68227cb9af10f
SHA256f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6
SHA5128584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f
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Filesize
106KB
MD5fe36fb1073e6f8fa14d7250501a29aaf
SHA16c7e01278362797dabcff3e666b68227cb9af10f
SHA256f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6
SHA5128584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f