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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
28/01/2024, 13:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe
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Size
59KB
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MD5
8cfbc2bb39c4249f621b90d02ce47940
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SHA1
a58ae19e2b462f1ddefe05c6d01dc9e741195887
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SHA256
172e6e3b1e09fbf8396949de05409a8703e386d57a45c9a1e6543b7742e25189
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SHA512
d46b18cbcb184dd38d4fb8649c6a15d7be452333bec00a7c0587801db4aad85c8f996491136142ba7b3f44fcc172e35f3aabf60d4b904891bdcd47d410bbc6d7
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SSDEEP
1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMTI1:TCjsIOtEvwDpj5HE/OUHnSML
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2828-1-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c000000012337-11.dat CryptoLocker_rule2 behavioral1/memory/2788-16-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2828-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2788-25-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2828-1-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000c000000012337-11.dat CryptoLocker_set1 behavioral1/memory/2788-16-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2828-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2788-25-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2788 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2828 2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_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 2828 wrote to memory of 2788 2828 2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe 28 PID 2828 wrote to memory of 2788 2828 2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe 28 PID 2828 wrote to memory of 2788 2828 2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe 28 PID 2828 wrote to memory of 2788 2828 2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2828 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2788
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD5a542188ff77ffe7ff3600bba3bf4f064
SHA143b4f9d0ce13b3d302104a6ace22c53168563d99
SHA256b2f09174cab1a9d38a5cd36eebcb9a2d4cc333d98c3e8e150f2d7150d965e9f9
SHA51288445f60ae44ba18e4388668dd5ca7f8358af3bbdb4f4a7694358f82917f9749f3b7094ee95a0dfb4cb29ee654ea76bc0e34066c3728abe306f3666173b49a76