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Analysis
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max time kernel
149s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
06/03/2024, 15:50
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe
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Size
39KB
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MD5
d7262fb06d4368b977ac068d74a68a17
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SHA1
a2a88d949c553506cb4946181c8035890608ea50
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SHA256
dc029e968124764e890d34012b47a56097a5ce9e69cb9d8593caf9b5437d03c4
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SHA512
abf1c43a6538fff48b76e3d3273ba57ee651f4984a09f166d44fb40017c311fb79f3f954cd8ec3d38f13cca142418d115997b50a8715e9896552e2e85ceb3aa6
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SSDEEP
768:XS5nQJ24LR1bytOOtEvwDpj66BLtldJQp3v2Z:i5nkFGMOtEvwDpjn/JQxM
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2656-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d00000001224c-11.dat CryptoLocker_rule2 behavioral1/memory/2656-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2632-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2632-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/2656-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2632-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2632-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2656-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000d00000001224c-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2656-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2632-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2632-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2632 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2656 2024-03-06_d7262fb06d4368b977ac068d74a68a17_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 2656 wrote to memory of 2632 2656 2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe 28 PID 2656 wrote to memory of 2632 2656 2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe 28 PID 2656 wrote to memory of 2632 2656 2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe 28 PID 2656 wrote to memory of 2632 2656 2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2656 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2632
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD5ff4f606402cbef8399f5b88809a776cb
SHA1fd1070bcbadd1d865eebb79ee2a09c440e186866
SHA256322a3cd5825c49885124aa4959e0f8f0c06ae79db46435d8f8b1a6ed7ffc5390
SHA512e68fab65e2280d15730c6d828e0ba317b44938ce9dc6d2d932b393e58f0030deed9b10406c15982a58e1a056eff2584eb12399a62e18c559c46cb21ab580f9e7