Analysis
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max time kernel
149s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
27/02/2024, 16:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe
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Size
44KB
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MD5
803d9dadf159938adeb83567648ab343
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SHA1
71ddfc5728cee1db8dc8fcdd5c48505a28d1f366
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SHA256
53e0ef422be91a00ef1aefe10497f88599d72f454aa30ebae4547dbcad4b944b
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SHA512
82dbf5cb358eb4089405c3b58c1d973dd13f6405df5bb84f600ffc039b6ca132175a138b9283b65b41d308384f8c513ff938e4b85dd243ef58bf29855eac8e8f
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SSDEEP
768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+YUS5z:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+y
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2208-1-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2208-13-0x0000000001DF0000-0x0000000001DFB000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000012241-11.dat CryptoLocker_rule2 behavioral1/memory/2208-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2056-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/2208-1-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000b000000012241-11.dat CryptoLocker_set1 behavioral1/memory/2208-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2056-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2056 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2208 2024-02-27_803d9dadf159938adeb83567648ab343_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 2208 wrote to memory of 2056 2208 2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe 28 PID 2208 wrote to memory of 2056 2208 2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe 28 PID 2208 wrote to memory of 2056 2208 2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe 28 PID 2208 wrote to memory of 2056 2208 2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2056
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
45KB
MD5742e83926014d1124c9c4a7c5e298b14
SHA1e2bdc867a653176f23e75c6a708644d444adea80
SHA2566e35ee2716cb573f4508988af794c86134396573b75adf97d3d703966dfa9de5
SHA512826587a7630275244a97d885b8bc03815b4c4129335c64f1687e2bf667cb624a58fe38e1329ada147bcc439533528f0d3d521349e21662814d7d29de8c6a0fd4