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Analysis
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max time kernel
149s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
20/02/2024, 06:11
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-20_d05fe3dcb148a732b38267c309e418fc_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-20_d05fe3dcb148a732b38267c309e418fc_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-20_d05fe3dcb148a732b38267c309e418fc_cryptolocker.exe
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Size
39KB
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MD5
d05fe3dcb148a732b38267c309e418fc
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SHA1
2cbbc7e780b5320407462f380a266502a27418f8
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SHA256
755b3771e0df80b3cfcfaf5ead599384285c5e1b37ec67fad138de3b1592b9df
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SHA512
820a6a5c475392173073faacfb72e90c7c20851ef9429dc0f8c343b7f8acce9395b050168a2ebc915849a89dc0d0a5c268987a99e34689442327a58598455a45
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SSDEEP
768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRY+V:m5nkFNMOtEvwDpjG8hhXy+V
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1456-1-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1456-14-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0007000000012264-11.dat CryptoLocker_rule2 behavioral1/memory/2076-18-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2076-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/1456-1-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/1456-14-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2076-18-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2076-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/1456-1-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1456-14-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x0007000000012264-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2076-18-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2076-27-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2076 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1456 2024-02-20_d05fe3dcb148a732b38267c309e418fc_cryptolocker.exe -
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 1456 wrote to memory of 2076 1456 2024-02-20_d05fe3dcb148a732b38267c309e418fc_cryptolocker.exe 28 PID 1456 wrote to memory of 2076 1456 2024-02-20_d05fe3dcb148a732b38267c309e418fc_cryptolocker.exe 28 PID 1456 wrote to memory of 2076 1456 2024-02-20_d05fe3dcb148a732b38267c309e418fc_cryptolocker.exe 28 PID 1456 wrote to memory of 2076 1456 2024-02-20_d05fe3dcb148a732b38267c309e418fc_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-20_d05fe3dcb148a732b38267c309e418fc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-20_d05fe3dcb148a732b38267c309e418fc_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1456 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2076
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD506160b4537944a5c5b1e67290db6cc5c
SHA1695a18328490632a4ccc0c3b763840775cdfd2b4
SHA2566bf2499677cb92a873c4341b5e986193fdaf53d06e944108f2488294f5296b1c
SHA5125f77e19b2b0917b3235e282ea3987740b1717dbef687e4156f010f1f40a2316c9876e64ae9a3683e1186e596bbd62ba2a161ff737f17ab3ffb76e8392915a6b8