Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
23-05-2024 00:25
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe
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Size
78KB
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MD5
1690ece352791863707066ea1322b0ef
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SHA1
53c4cefa2246096d781919c074d4749210983d6c
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SHA256
7c2c466cef69d0e146dc5e952b8f4fc5fe9ee96708ccc7c20106c10574844677
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SHA512
56afcebc5bd0c89aa6f3dd21343e54d5bd7fe101ddec55dc0b69557737f3e9a2f3a55311a14f007d5b173fed42f340cf275ab892e3a5ef40cb3e546598fd1a0a
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SSDEEP
1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuf6:vCjsIOtEvwDpj5H9YvQd22
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\misid.exe CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\misid.exe CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
Processes:
misid.exepid process 1676 misid.exe -
Loads dropped DLL 1 IoCs
Processes:
2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exepid process 1740 2024-05-23_1690ece352791863707066ea1322b0ef_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
Processes:
2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exedescription pid process target process PID 1740 wrote to memory of 1676 1740 2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe misid.exe PID 1740 wrote to memory of 1676 1740 2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe misid.exe PID 1740 wrote to memory of 1676 1740 2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe misid.exe PID 1740 wrote to memory of 1676 1740 2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe misid.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-23_1690ece352791863707066ea1322b0ef_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1676
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
78KB
MD514031465de66fbe4d707d89a5e9a861e
SHA1fa9bfc488d7a4d78239e8e47deec2244fc8d5b92
SHA2565f66cf0a5344132d2a1559f6ba7f5063bd948dacd48395354ec1485ba8101017
SHA5129f922db62d762df645156b720cbf9f1c1aa5a18fd9adf89a87ca454eb4058d6a2a102fed642c8a883de576466fba1736aef865a31d7fa806c06f80e7408d85ef