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Analysis
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max time kernel
148s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
29/06/2024, 04:37
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe
Resource
win10v2004-20240611-en
General
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Target
2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe
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Size
48KB
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MD5
4dc90cd97918cf06c09a3af83050bb7a
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SHA1
58a8068d45a3111f724f9c5b4d69f8f3a13befa7
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SHA256
6eae95c6b6a21a39035e2816b40778610ca8d1c747a6af97935ea95408d6c2c0
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SHA512
d502b0f20c21dfeba9f1311f318fdf0a273ae9cd48b7cf8a4a89980fe265b71d03399819c784bcfa8674da9dac9ead0fc3533719d4140b21860029018bd52414
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SSDEEP
768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPck:P6QFElP6k+MRQMOtEvwDpjBQpVXE
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2056-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d00000001226b-11.dat CryptoLocker_rule2 behavioral1/memory/2056-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2972-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2972-25-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2056-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d00000001226b-11.dat CryptoLocker_set1 behavioral1/memory/2056-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2972-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2972-25-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2972 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2056 2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_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 2056 wrote to memory of 2972 2056 2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe 28 PID 2056 wrote to memory of 2972 2056 2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe 28 PID 2056 wrote to memory of 2972 2056 2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe 28 PID 2056 wrote to memory of 2972 2056 2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2056 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2972
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
48KB
MD5d0e8503e60472c12f437f1748a15252b
SHA114870b994c6f7262f8bfc0bf58df4623d805387e
SHA256a5c65e58d6645da5912c51ed6e64d52083c0015fcf1fa9a714582d79b0d9a447
SHA512858819c3417f70c2b00e7070adf2194e569133006a05ec967e2b28443f14601f88377ec10ea6c4ae631c0f8e3943826e652e93b24a42794d0eb7aa0278eaafd1