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Analysis
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max time kernel
132s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
18/03/2024, 23:26
Behavioral task
behavioral1
Sample
2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe
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Size
58KB
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MD5
30f05bcda962983978e77992e3678b8c
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SHA1
978a71064b0989978696e85b9eedac24b387e6d2
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SHA256
ae90896ec56f1870da6732c468eb7c723d8913d3a3de6eb710a259670eb23ccb
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SHA512
a8dfca61629d04902925414ea6d078b60de49ca04cea654dde895103c77622b21ebe34249e205c32eb07f8050214998dbcec0f608c168fc13c300c57fc86e9ed
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SSDEEP
768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5appB:z6QFElP6n+gKmddpMOtEvwDpj9aYaR
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2224-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000012266-11.dat CryptoLocker_rule2 behavioral1/memory/2224-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2520-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2224-13-0x0000000000680000-0x0000000000690000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2520-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/memory/2224-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a000000012266-11.dat CryptoLocker_set1 behavioral1/memory/2224-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2520-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2224-13-0x0000000000680000-0x0000000000690000-memory.dmp CryptoLocker_set1 behavioral1/memory/2520-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral1/memory/2224-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000a000000012266-11.dat UPX behavioral1/memory/2224-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2520-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2224-13-0x0000000000680000-0x0000000000690000-memory.dmp UPX behavioral1/memory/2520-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2520 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2224 2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe -
resource yara_rule behavioral1/memory/2224-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000a000000012266-11.dat upx behavioral1/memory/2224-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2520-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2224-13-0x0000000000680000-0x0000000000690000-memory.dmp upx behavioral1/memory/2520-27-0x0000000000500000-0x0000000000510000-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 2224 wrote to memory of 2520 2224 2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe 28 PID 2224 wrote to memory of 2520 2224 2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe 28 PID 2224 wrote to memory of 2520 2224 2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe 28 PID 2224 wrote to memory of 2520 2224 2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2520
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
58KB
MD59cbf36c8d624e7d35156fc78c28737be
SHA16c44da4b8e869b87d82dc8d444e77ff61748a86c
SHA256f83a5784288d91acfa47ed724048013b5531c77da746fcb6dfc80476486c605f
SHA512fd555af44b4be66f53465a3e5d7fea7a7b259cb9f59ce1e6a08a171da5abcc9aaa8dac23a11513d9d7fd373eae91476ad8c50815bd6eee2a8a3006d57cc919f6