Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
19/02/2024, 21:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe
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Size
38KB
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MD5
8be39f9fbba0598426070ef2440a9eed
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SHA1
ff0e91607bc2ca054f37cc385013e0276efa2fbf
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SHA256
bfe60b0313a53a7df41b6aa15c9fc694b62c8e5691296b37575f9ccf35508145
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SHA512
51bc0f3ede02f9793ed04a3e76f222edb2e11059354bf4c0e2d2527d9d71b2f3d5752a8e25dddf2ae07eb9cd0637200afd82bba5912d95e435aa1f9da5e3c597
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SSDEEP
768:XS5nQJ24LR1bytOOtEvwDpj66BLtldJQgY:i5nkFGMOtEvwDpjn/JQgY
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2916-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x00070000000122be-11.dat CryptoLocker_rule2 behavioral1/memory/2916-14-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2536-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2536-25-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/2916-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2916-14-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2536-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2536-25-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2916-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x00070000000122be-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2916-14-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2536-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2536-25-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2536 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2916 2024-02-19_8be39f9fbba0598426070ef2440a9eed_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 2916 wrote to memory of 2536 2916 2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe 28 PID 2916 wrote to memory of 2536 2916 2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe 28 PID 2916 wrote to memory of 2536 2916 2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe 28 PID 2916 wrote to memory of 2536 2916 2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2536
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
38KB
MD5be82f9631a2e0b4ec210ff7e927f536d
SHA1a53f15ea4580ed27af7270c10ae3dc2faa52acd2
SHA256bded07402d598e81c07fa46703882ed5b5c6dd792601a1ce5d075602f7204f5e
SHA51254f27b2135541e351a41de4a31605b1c9e25e62200df486bec0bfe22731f5d30382ae932b41a81839e2c77b23db5af2d6be6c487f5c6855bd159a5cc07e46d5f