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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
12/05/2024, 21:13
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-11_327b653086abce1916842fa455f7ea60_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-05-11_327b653086abce1916842fa455f7ea60_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-11_327b653086abce1916842fa455f7ea60_cryptolocker.exe
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Size
43KB
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MD5
327b653086abce1916842fa455f7ea60
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SHA1
aa4a1e996ac8c0085f980bd0df7ffcb58ed9edc6
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SHA256
cec3775f7f23bd928bc9ecbdabe164c1dce021ed884e17763da10da21418fbf3
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SHA512
8f8949784a98a22112ba2ab4e461579122364402f520e0065d0d0c64b26db06ad0e4509f36d79cfb07605c42fbcfbb9f4c8877379f985a1ad121ae7afa4c93af
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SSDEEP
768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRp5jd:m5nkFNMOtEvwDpjG8hhXj5R
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2972-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c000000015cbd-11.dat CryptoLocker_rule2 behavioral1/memory/2972-16-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2588-18-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2588-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/2972-16-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2588-18-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2588-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2972-0-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000c000000015cbd-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2972-16-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2588-18-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2588-27-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2588 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2972 2024-05-11_327b653086abce1916842fa455f7ea60_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 2972 wrote to memory of 2588 2972 2024-05-11_327b653086abce1916842fa455f7ea60_cryptolocker.exe 28 PID 2972 wrote to memory of 2588 2972 2024-05-11_327b653086abce1916842fa455f7ea60_cryptolocker.exe 28 PID 2972 wrote to memory of 2588 2972 2024-05-11_327b653086abce1916842fa455f7ea60_cryptolocker.exe 28 PID 2972 wrote to memory of 2588 2972 2024-05-11_327b653086abce1916842fa455f7ea60_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-11_327b653086abce1916842fa455f7ea60_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-11_327b653086abce1916842fa455f7ea60_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2588
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD5719a33279477aeae3656077704871d35
SHA181ee45825c81a93764f994d66fc328715db62561
SHA25625a892d7590ac9b054b88713c54526c3a1d0db598654d085c667ff9372cfdc05
SHA512dc3427162dce53bd3a3ac1af514fc0fd615d0a11ce169d33e7a85bce58c2e556bb980e64f67428bc43bb53bc4091bc6070e966bb5750e44f8b71fde930aaabe0