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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
29/05/2024, 15:32
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe
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Size
49KB
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MD5
58048df9a86bdb437b845510172f2241
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SHA1
bc115bee22e5751d6a4ee71ad5e2cbe4a6f6ad29
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SHA256
cfbaa41d184a0a39aaaa44d9b2b71bee463425407aaa512413f9a67402b69012
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SHA512
b4c88730135dca54e8a9ad1f6e684da3f95a14860e41658dd1489ba75718cf8e3367cd31e9cb81d2ff10599384919e1f5b0c421ab490c1463fbf1836f2886efb
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SSDEEP
768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9Rva/yYsm06Md:xj+VGMOtEvwDpjy+viHs7pd
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a00000001224e-11.dat CryptoLocker_rule2 behavioral1/memory/3000-12-0x0000000002320000-0x0000000002330000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3012-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3000-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3012-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a00000001224e-11.dat CryptoLocker_set1 behavioral1/memory/3000-12-0x0000000002320000-0x0000000002330000-memory.dmp CryptoLocker_set1 behavioral1/memory/3012-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3000-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3012-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000a00000001224e-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/3000-12-0x0000000002320000-0x0000000002330000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/3012-18-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/3000-16-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/3012-26-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 3012 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 3000 2024-05-29_58048df9a86bdb437b845510172f2241_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 3000 wrote to memory of 3012 3000 2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe 28 PID 3000 wrote to memory of 3012 3000 2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe 28 PID 3000 wrote to memory of 3012 3000 2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe 28 PID 3000 wrote to memory of 3012 3000 2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3000 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3012
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD5d4ee86412a485fafe9bcbd9b07663f72
SHA17fd1285837427ec1057ac5267b1ceb8696eb44d1
SHA2569aa9ee0c3808205fe6b878433fe8527426f96373e6892fff6dda6ed9abbc5618
SHA51297b3c27500f404d0de917fee33fdf5ccb798e0c24ce7fa672333942fe2468f6998344efe2d5d0aea356cea5f93cf20dfcac722d0965df4016d73b3b1809d36ca