Analysis
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max time kernel
158s -
max time network
172s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
14/02/2024, 12:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe
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Size
41KB
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MD5
cd45417b27d8cfdf53589f29d0f2e4f8
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SHA1
b4672b176619bfee4f6da6d617634c8b3584e186
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SHA256
fc260cb40166b3ff98f568a4fb217dc586b5039e39c5f80f634d5ee989e8ff34
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SHA512
69c0c82d370123e9cb404de0f856d53710143b39926143ce6a9b6a64d2877db1aafffd2473f532caf4eb7e5a74f19bc37a734f35bc9896a57b0d39f779210d27
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SSDEEP
768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8PEM4Z:bIDOw9a0Dwo3P1ojvUSDhcxZ
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x0008000000012270-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2816 lossy.exe -
Loads dropped DLL 1 IoCs
pid Process 2404 2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_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 2404 wrote to memory of 2816 2404 2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe 27 PID 2404 wrote to memory of 2816 2404 2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe 27 PID 2404 wrote to memory of 2816 2404 2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe 27 PID 2404 wrote to memory of 2816 2404 2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2404 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:2816
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD57e82e6ed4831b04764a8d663abbe9ba0
SHA1ebded4de7340b2a315561d02b22521b400e9ded4
SHA256d48e3cc10ad1dc93a707126a32ac8990a8d8b12637656c89aa6cc0cdcadc8a50
SHA512ee42df0313f4db152443aaab5f83897a963343c5a7fa5ff40df9ebd6a0c314aac7d7a0b3928b8f1c821c2f1358c2fd9257d8aeff7fb97e01bcee4b8ee51ee8b0