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Analysis
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max time kernel
149s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/03/2024, 16:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-10_9d982b3235682b1b329ededc473d56b8_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-10_9d982b3235682b1b329ededc473d56b8_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-03-10_9d982b3235682b1b329ededc473d56b8_cryptolocker.exe
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Size
63KB
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MD5
9d982b3235682b1b329ededc473d56b8
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SHA1
87a37c3a3167c8fecca45226f7a7a41b3fa8ce70
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SHA256
9cf1e5b77f7e4471accb16077cd4375325b2ab048d7c5f229052327c9851b7de
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SHA512
c549275a75354a76f988c19be6975d3a34ff94f4840e64439e1e80dc726070c612964f6519decbcbd617cb749dd60cca8d161ac42ae398f06e75aadcd8cd8b1f
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEKIRQ:6j+1NMOtEvwDpjr8ox8UDEKKQ
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2168-1-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2168-14-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c000000012241-11.dat CryptoLocker_rule2 behavioral1/memory/1680-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1680-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2168-1-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2168-14-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000c000000012241-11.dat CryptoLocker_set1 behavioral1/memory/1680-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1680-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2168-1-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2168-14-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000c000000012241-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1680-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1680-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 1680 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2168 2024-03-10_9d982b3235682b1b329ededc473d56b8_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 2168 wrote to memory of 1680 2168 2024-03-10_9d982b3235682b1b329ededc473d56b8_cryptolocker.exe 28 PID 2168 wrote to memory of 1680 2168 2024-03-10_9d982b3235682b1b329ededc473d56b8_cryptolocker.exe 28 PID 2168 wrote to memory of 1680 2168 2024-03-10_9d982b3235682b1b329ededc473d56b8_cryptolocker.exe 28 PID 2168 wrote to memory of 1680 2168 2024-03-10_9d982b3235682b1b329ededc473d56b8_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-10_9d982b3235682b1b329ededc473d56b8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-10_9d982b3235682b1b329ededc473d56b8_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2168 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1680
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
63KB
MD5a10a5d2c74e5bb4af969192e6cf8191a
SHA10189f85e79041271b7f3c51c3775edb69021179b
SHA256a767d3f2411cb105b34a255a26b5f4e1bfdf1972e9ef4440efbbe68fefaeaa94
SHA51201ac4ef73dfc5674289fbbd89c3ad4b883c6187506f9895c7cf80a11d4be00c5702c69a2fae926c19b6f3d6386a23209054fe1d0bd8a7039bf76a4b8c10f8f0c