Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
12/06/2024, 15:24
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2024-06-12_1474bcfe854e7cdc9115bdae367dd3ee_cryptolocker.exe
Resource
win7-20240221-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-12_1474bcfe854e7cdc9115bdae367dd3ee_cryptolocker.exe
Resource
win10v2004-20240508-en
7 signatures
150 seconds
General
- Target 2024-06-12_1474bcfe854e7cdc9115bdae367dd3ee_cryptolocker.exe
- Size 49KB
- Sample240612-ss7bvatekk
- SHA256 a1837d44794ebfeff45a5ed6015b345a353d75eac27c69dfe113c3720b560a9c
- MD5 1474bcfe854e7cdc9115bdae367dd3ee
- SHA1 4bf859a2eccc55a41b5c6634dfb3230d387ffa96
- SHA512 886d471569e5c45bfb8a36baf54c49193be317ed2735eacffac8d34090fa6540401a0c598ca6545f5e2c90289fe6c24bd0a5dc86ad4b22d4098d6a355177128c
- SSDEEP 768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9RzhwaRh+Ep6on:xj+VGMOtEvwDpjy+TRh+EUW
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/716-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000022f51-13.dat CryptoLocker_rule2 behavioral2/memory/716-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3008-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3008-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral2/memory/716-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x0008000000022f51-13.dat CryptoLocker_set1 behavioral2/memory/716-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/3008-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/3008-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral2/memory/716-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x0008000000022f51-13.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/716-16-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3008-18-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3008-27-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 2024-06-12_1474bcfe854e7cdc9115bdae367dd3ee_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 3008 misid.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 716 wrote to memory of 3008 716 2024-06-12_1474bcfe854e7cdc9115bdae367dd3ee_cryptolocker.exe 81 PID 716 wrote to memory of 3008 716 2024-06-12_1474bcfe854e7cdc9115bdae367dd3ee_cryptolocker.exe 81 PID 716 wrote to memory of 3008 716 2024-06-12_1474bcfe854e7cdc9115bdae367dd3ee_cryptolocker.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-12_1474bcfe854e7cdc9115bdae367dd3ee_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-12_1474bcfe854e7cdc9115bdae367dd3ee_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:716 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3008
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 49KB
- SHA256 c4062e2c0e9339f260c3560b5fabd9c3f215fbc2300fed2f4bdae7a30144ae7e
- MD5 0b181fa73174d65b67f958f684c27c20
- SHA1 9f2ecc516c0b4b5970b0bd67a0224c4d34c17f8d
- SHA512 3793a1c1cd563fcf36d0063581f3c258c5e5ba25b0be9a109ec1db06cc7707fae7f34a472b4e6331f5fdbb4901958cedf305074fb0042e30b50f4330d9ea561d
- SSDEEP 768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9RzhwaRh+Ep6of:xj+VGMOtEvwDpjy+TRh+EUO
- MD5 SHA1 SHA512 SSDEEP