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Analysis
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max time kernel
150s -
max time network
156s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
04/08/2023, 16:34
Behavioral task
behavioral1
Sample
5f76be883c51cff5af0007adb45ebd19_cryptolocker_JC.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
5f76be883c51cff5af0007adb45ebd19_cryptolocker_JC.exe
Resource
win10v2004-20230703-en
General
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Target
5f76be883c51cff5af0007adb45ebd19_cryptolocker_JC.exe
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Size
88KB
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MD5
5f76be883c51cff5af0007adb45ebd19
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SHA1
ae8310a69ad58eb89ad5c7d98a5467d810616d8c
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SHA256
42c8d816ea420f8e22b8a422a2b6a72075f7111f7ae6035f24d2e939a155854e
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SHA512
7512d0866602be1cc7bea0b74c78c0ff1f3691f0a66398a4a96852f73dc1360a04b3e151d5f45f9e420de80b2a9bc1f54e2a6137782d55055ad8d1416b86e17b
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDWo:zCsanOtEvwDpjM
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2172 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2236 5f76be883c51cff5af0007adb45ebd19_cryptolocker_JC.exe -
resource yara_rule behavioral1/memory/2236-54-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2236-68-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x00080000000120e6-65.dat upx behavioral1/memory/2172-70-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x00080000000120e6-69.dat upx behavioral1/files/0x00080000000120e6-79.dat upx behavioral1/memory/2172-80-0x0000000000500000-0x0000000000510000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2236 wrote to memory of 2172 2236 5f76be883c51cff5af0007adb45ebd19_cryptolocker_JC.exe 28 PID 2236 wrote to memory of 2172 2236 5f76be883c51cff5af0007adb45ebd19_cryptolocker_JC.exe 28 PID 2236 wrote to memory of 2172 2236 5f76be883c51cff5af0007adb45ebd19_cryptolocker_JC.exe 28 PID 2236 wrote to memory of 2172 2236 5f76be883c51cff5af0007adb45ebd19_cryptolocker_JC.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\5f76be883c51cff5af0007adb45ebd19_cryptolocker_JC.exe"C:\Users\Admin\AppData\Local\Temp\5f76be883c51cff5af0007adb45ebd19_cryptolocker_JC.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2236 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2172
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
88KB
MD5049c27f75a205b10ce9acf8c73074333
SHA1fdcce36781b66501069ea215185c58e09657fd45
SHA2562dd995ce69662afa46d408ad800ffcc63cf82184595684711c8d19b648ee739b
SHA5123fc08f8cf237c409f9cc461bc709cf5d795339a2c20a012b1a6de629cc1ffea280e4c193c76a0bd9788af608a7dddd1a075a3c7e56bc3b3efa2c0013b6198519
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Filesize
88KB
MD5049c27f75a205b10ce9acf8c73074333
SHA1fdcce36781b66501069ea215185c58e09657fd45
SHA2562dd995ce69662afa46d408ad800ffcc63cf82184595684711c8d19b648ee739b
SHA5123fc08f8cf237c409f9cc461bc709cf5d795339a2c20a012b1a6de629cc1ffea280e4c193c76a0bd9788af608a7dddd1a075a3c7e56bc3b3efa2c0013b6198519
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Filesize
88KB
MD5049c27f75a205b10ce9acf8c73074333
SHA1fdcce36781b66501069ea215185c58e09657fd45
SHA2562dd995ce69662afa46d408ad800ffcc63cf82184595684711c8d19b648ee739b
SHA5123fc08f8cf237c409f9cc461bc709cf5d795339a2c20a012b1a6de629cc1ffea280e4c193c76a0bd9788af608a7dddd1a075a3c7e56bc3b3efa2c0013b6198519