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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
23/04/2024, 20:57
Behavioral task
behavioral1
Sample
2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe
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Size
65KB
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MD5
c29a7912dd5b408fc36e9465ca052507
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SHA1
d35ccf2985408ca7e3e8b469ea9ad166d36c7b94
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SHA256
93d37334135ea55c398b895731ae0f743ec5515c3fab59cffc76d98b73de5f94
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SHA512
30e2f6d9e0fd87fd403c9f1d0e5242c4c473495cd940648c214298fdd8ccace023a1111c34003f4b8dae85ecfb9a7f650fa6bbb85779c9b07b5bb3ecb1ae2a25
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SSDEEP
768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mLZ5k5Bj:zj+soPSMOtEvwDpj4kpmeLmQ/j
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2812-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000014a94-11.dat CryptoLocker_rule2 behavioral1/memory/2812-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2684-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2812-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a000000014a94-11.dat CryptoLocker_set1 behavioral1/memory/2812-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2684-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/2812-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000a000000014a94-11.dat UPX behavioral1/memory/2812-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2684-26-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2684 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2812 2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe -
resource yara_rule behavioral1/memory/2812-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000a000000014a94-11.dat upx behavioral1/memory/2812-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2684-26-0x0000000000500000-0x0000000000510000-memory.dmp upx -
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 2812 wrote to memory of 2684 2812 2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe 28 PID 2812 wrote to memory of 2684 2812 2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe 28 PID 2812 wrote to memory of 2684 2812 2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe 28 PID 2812 wrote to memory of 2684 2812 2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2812 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2684
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
65KB
MD51ccdc14b7f6a7f6c709626c867640e46
SHA1635e05609139ad3d10bb9c2927bc92aec2d51fd1
SHA256ed60dd59f084c88941c2909309b35e728c2986feafc11f5cb15fbca645726753
SHA512f06198e6f79a661b2e43342a3a246c60000e8ffa6005898249c11e24e70a495433ea84654075ff3fb35a4bd569beb80045de6a230060ee75b865586980db4fd6