Analysis
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max time kernel
150s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
12/06/2024, 15:45
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-12_0c434c3ae5404038ca63ba33c69acb6c_cryptolocker.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
2024-06-12_0c434c3ae5404038ca63ba33c69acb6c_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-06-12_0c434c3ae5404038ca63ba33c69acb6c_cryptolocker.exe
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Size
69KB
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MD5
0c434c3ae5404038ca63ba33c69acb6c
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SHA1
9a711abf8a6a3876bb22d76e125e826547bec92e
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SHA256
441795b1d68fe2a7ba377eabe77543f7c731d2a5eec92045ad0d476a79003e43
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SHA512
267c875130c48b1cc879095270570d9c20a8cd3f9f32b77305d440fbbccb01f24901559d81afc0755e0c6200f3e8ace9cdc3b1ddd827e96854efaf3eb20ed930
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SSDEEP
768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dpS:i5nkFGMOtEvwDpjNbwQEI8UZDO
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/1444-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0009000000012281-11.dat CryptoLocker_rule2 behavioral1/memory/1444-13-0x0000000002480000-0x000000000248F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1444-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1372-18-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1372-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/1444-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1372-18-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1372-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/1444-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x0009000000012281-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1444-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1372-18-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1372-27-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 1372 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1444 2024-06-12_0c434c3ae5404038ca63ba33c69acb6c_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 1444 wrote to memory of 1372 1444 2024-06-12_0c434c3ae5404038ca63ba33c69acb6c_cryptolocker.exe 28 PID 1444 wrote to memory of 1372 1444 2024-06-12_0c434c3ae5404038ca63ba33c69acb6c_cryptolocker.exe 28 PID 1444 wrote to memory of 1372 1444 2024-06-12_0c434c3ae5404038ca63ba33c69acb6c_cryptolocker.exe 28 PID 1444 wrote to memory of 1372 1444 2024-06-12_0c434c3ae5404038ca63ba33c69acb6c_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-12_0c434c3ae5404038ca63ba33c69acb6c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-12_0c434c3ae5404038ca63ba33c69acb6c_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1444 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1372
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
70KB
MD5210fa3de9be3a61e25b1a7c7b192fde6
SHA1c260cc13c278ec9acafe21d9734e78b2658d2b8c
SHA256a1a3f93c53357cc9d7c1564b023aa0699fe9de9b6d3a4fd74d5852779ce23264
SHA512d26b44432900249105715c03587e7f4f8c7091cf710ca02d4598a479c093d62594e7c901013ff63032c5c6a60875aa487462d6c5b10286bfe994c5c86fac87a0