Analysis
-
max time kernel
148s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
06-03-2024 01:48
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-06_97b0767c1dfc4525767fdaf312caead2_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-03-06_97b0767c1dfc4525767fdaf312caead2_cryptolocker.exe
Resource
win10v2004-20240226-en
General
-
Target
2024-03-06_97b0767c1dfc4525767fdaf312caead2_cryptolocker.exe
-
Size
40KB
-
MD5
97b0767c1dfc4525767fdaf312caead2
-
SHA1
252823233e237b9817ef6eebfc9505591fb02429
-
SHA256
0c75e14ed8291ecf78bb38705ce426125c4017764414001f270f8e60a41a6399
-
SHA512
50f6fd94e6652c19f455b22496a1e135af6a9cd0e81a8e426e7694f787745497a7c324ff27395b974383d63a44a76802ac8970fe810543bbe4126939fd050da2
-
SSDEEP
768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFR1kbb:m5nkFNMOtEvwDpjG8hhX3kbb
Malware Config
Signatures
-
Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2416-1-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000012252-11.dat CryptoLocker_rule2 behavioral1/memory/2416-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1708-16-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1708-25-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/2416-1-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2416-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/1708-16-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/1708-25-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2416-1-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000a000000012252-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2416-15-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1708-16-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1708-25-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 1708 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2416 2024-03-06_97b0767c1dfc4525767fdaf312caead2_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 2416 wrote to memory of 1708 2416 2024-03-06_97b0767c1dfc4525767fdaf312caead2_cryptolocker.exe 28 PID 2416 wrote to memory of 1708 2416 2024-03-06_97b0767c1dfc4525767fdaf312caead2_cryptolocker.exe 28 PID 2416 wrote to memory of 1708 2416 2024-03-06_97b0767c1dfc4525767fdaf312caead2_cryptolocker.exe 28 PID 2416 wrote to memory of 1708 2416 2024-03-06_97b0767c1dfc4525767fdaf312caead2_cryptolocker.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-03-06_97b0767c1dfc4525767fdaf312caead2_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-06_97b0767c1dfc4525767fdaf312caead2_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2416 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1708
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
40KB
MD57d2b2e2994ad39191f1dcfe28331571f
SHA1d31a894eb0696c4e612cf149b46c49a7758dc297
SHA256c982a1263b0e6437871874bd37eaee4e0df46faf9e220a6d2fa3e1e105835b94
SHA512318732cb175f3e390cc7ac881bc258ca6f01f4a492c3b993321c2f8eaba440a9cd66642532fe25958643c8d9481f8bb20bc228294ff1783312d6a97cf841c450