Analysis
-
max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/06/2024, 21:40
Behavioral task
behavioral1
Sample
2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe
Resource
win10v2004-20240508-en
General
-
Target
2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe
-
Size
91KB
-
MD5
bd4d9f46cb9b087e24b4e8c8760426ce
-
SHA1
c2eaf98e5717e341f3cc6af4b25275524d1d4a20
-
SHA256
54ac269031d5b61fc5706b847b9796d1de4985612d8b48dbd52def06c5651d54
-
SHA512
0dde13fe86820c424d78bb385ea3eea815432f610a8f37877c564ca4db243da5e0f01df93a4312a3d8a8d5bd4afd1c92d26045184188c57bde7df3b373e1ecea
-
SSDEEP
1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/8r:n6a+1SEOtEvwDpjYYvQd2PX
Malware Config
Signatures
-
Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2968-8-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2968-14-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c00000001269e-15.dat CryptoLocker_rule2 behavioral1/memory/1988-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1988-25-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2968-8-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2968-14-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000c00000001269e-15.dat CryptoLocker_set1 behavioral1/memory/1988-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1988-25-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/2968-8-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2968-14-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000c00000001269e-15.dat UPX behavioral1/memory/1988-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/1988-25-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 1988 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2968 2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe -
resource yara_rule behavioral1/memory/2968-8-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2968-14-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000c00000001269e-15.dat upx behavioral1/memory/1988-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/1988-25-0x0000000000500000-0x0000000000510000-memory.dmp upx -
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 2968 wrote to memory of 1988 2968 2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe 28 PID 2968 wrote to memory of 1988 2968 2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe 28 PID 2968 wrote to memory of 1988 2968 2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe 28 PID 2968 wrote to memory of 1988 2968 2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:1988
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
91KB
MD5be1c400b8603fc77dacd656ecf03673c
SHA15a2e4ab51f30b32543d7fdc2f72097fc9ac57be5
SHA25621e0dc47e7dc2a81432d7a85b98568884337f1796548a48e348510cb8e6bf80d
SHA5124e365d65f4d3349054fbcf6bb788277085dadb8491c915309f258e848495ae1cf653efcf40dac21bb02f9169bfb02af06cdfea1e0fb55cc205fc3f9ced75ea08