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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
27/01/2024, 23:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe
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Size
56KB
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MD5
7725f0262a937a673ae806f83ccbfce6
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SHA1
b6b184cb6267a7501400d9c4e02ea0ca9a6df5b4
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SHA256
ebd1622345626328b49133dca24eb7f94951cc4169e7305ba7b0c30e78153ebf
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SHA512
e76a80662c5f174f117ce1d77b24121b41dc0e9d4b6a1f050bac1ca83ae2fa66d2cf899023a0ccb307514fed58473f7c75daefd558ba3471ee2be12dca6de79a
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SSDEEP
768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZgBh8i6g7GoFX:xj+VGMOtEvwDpjubEgyX
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1420-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000015626-11.dat CryptoLocker_rule2 behavioral1/memory/1420-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2388-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2388-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1420-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a000000015626-11.dat CryptoLocker_set1 behavioral1/memory/1420-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2388-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2388-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/1420-1-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000a000000015626-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1420-16-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2388-17-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2388-27-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2388 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1420 2024-01-27_7725f0262a937a673ae806f83ccbfce6_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 1420 wrote to memory of 2388 1420 2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe 28 PID 1420 wrote to memory of 2388 1420 2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe 28 PID 1420 wrote to memory of 2388 1420 2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe 28 PID 1420 wrote to memory of 2388 1420 2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1420 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2388
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
57KB
MD599c55338fe24860bb70c4bd9e4844d54
SHA192519daf7d13635c43f6c53a4b34ea4ae94839f5
SHA256f52150c2e4ddc35ebdcf9f083f985f0e53d4378d85580d9ebbb420cb3547c22d
SHA51287bac6486a33a0c9b02508f38aa445e528af27e483445576020a274e64638161b2af71ef9c798699c059c249089d2e7e28b725ac5916e90b334c1e7b9cffc884