Analysis
- max time kernel
150s - max time network
150s - platform
windows7_x64 - resource
win7-20240220-en - resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system - submitted
11/06/2024, 12:44
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe
Resource
win7-20240220-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe
Resource
win10v2004-20240426-en
8 signatures
150 seconds
General
- Target 2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe
- Size 70KB
- Sample240611-pylesaxckb
- SHA256 c815b78e689307e5dda812fe58fe6955bceaa877a36f505bcff734372731bf14
- MD5 0571ab48a9ef7a49b0e08d8278230da1
- SHA1 05eaa9d2eb5ccfe6c26efcad34e593beef7ea67c
- SHA512 0ef5f64681715ac9adbdbd1a96643e529cda6e9f77b4b0f16673cf62f4f90dbe9850e92e66eccecd421d194ba7270eadb4a921fc12036c0e09727b17ec06893b
- SSDEEP 768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dY:i5nkFGMOtEvwDpjNbwQEI8UZDe
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2908-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000014f57-11.dat CryptoLocker_rule2 behavioral1/memory/2908-13-0x00000000022E0000-0x00000000022EF000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3060-18-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2908-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3060-28-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/3060-18-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2908-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/3060-28-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/memory/2908-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000a000000014f57-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2908-13-0x00000000022E0000-0x00000000022EF000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/3060-18-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2908-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/3060-28-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 3060 misid.exe - Loads dropped DLL 1 IoCs
pid Process 2908 2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2908 wrote to memory of 3060 2908 2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe 28 PID 2908 wrote to memory of 3060 2908 2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe 28 PID 2908 wrote to memory of 3060 2908 2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe 28 PID 2908 wrote to memory of 3060 2908 2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0571ab48a9ef7a49b0e08d8278230da1_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3060
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path \Users\Admin\AppData\Local\Temp\misid.exe
- Size 70KB
- SHA256 102e324cf08ed56f1a3dbd66aea73e80d58dfdcf41039ad6709807828e034823
- MD5 e2763a8214e206a5d40e14f178c6646d
- SHA1 c5781b5bfe98e39612068d89806024f3a3983589
- SHA512 e11a16cfecc59f191555d93acca9a662b376be5f6137d0848ee2ffbd89d384a0d8f8ed30594a7057711bc39d6b7a5c473fb9d915765ac03701993475d8ef63a9
- SSDEEP 768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dw:i5nkFGMOtEvwDpjNbwQEI8UZD2
- MD5 SHA1 SHA512 SSDEEP