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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
24/02/2024, 07:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe
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Size
40KB
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MD5
29653b792cec6720949c67ec569f8b3a
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SHA1
b22f3f1f44deb65180f7df0d233ec272b6e6a3be
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SHA256
54c232cb955b85926c58bb8b9b2b84d220dc69a1b2c961a2ae6a40e704ed6fb5
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SHA512
7a67aa68e1956457c60eeefaf5b0a7bc8f114e805d455e71a82652093e8f331c5dc42e9c29ae831b853aa5853373c8b4b13e4b7fc62a5dd09f39326c5959be82
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh67/rl:6j+1NMOtEvwDpjrRbrl
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2204-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d000000012253-11.dat CryptoLocker_rule2 behavioral1/memory/2204-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2544-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2544-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2204-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d000000012253-11.dat CryptoLocker_set1 behavioral1/memory/2204-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2544-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2544-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2204-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000d000000012253-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2204-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2544-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2544-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2544 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2204 2024-02-24_29653b792cec6720949c67ec569f8b3a_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 2204 wrote to memory of 2544 2204 2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe 28 PID 2204 wrote to memory of 2544 2204 2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe 28 PID 2204 wrote to memory of 2544 2204 2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe 28 PID 2204 wrote to memory of 2544 2204 2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2204 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2544
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD563d7788a971026b24fd508812b420f8f
SHA1a0fd335f6bbd9e2764c5699e9bd3dc3159b2ffc0
SHA256fa44170b14290b2411f5d13d399357915c82f4f2a0215d76c35713ff406b0394
SHA5125ee9a1c711f8055fc6c9676a328210a5bed989588100224c6766bdd2bbc00f30ea64644dbb63db073daf31ccf3a88b040c7159ac219d27f625a594dbbc0d58c1