Analysis
-
max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
28/02/2024, 02:28
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-28_1cd0dcf7d99c82d32045f2edc50aaf8c_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-02-28_1cd0dcf7d99c82d32045f2edc50aaf8c_cryptolocker.exe
Resource
win10v2004-20240226-en
General
-
Target
2024-02-28_1cd0dcf7d99c82d32045f2edc50aaf8c_cryptolocker.exe
-
Size
60KB
-
MD5
1cd0dcf7d99c82d32045f2edc50aaf8c
-
SHA1
fb548223812be3f70720fe7c8d1f04de0f73b6b4
-
SHA256
2377e817e48e6afb4f598aaf9bb28010b400f913b50ba903eb1eef65d325520f
-
SHA512
be9ee04af31f77a16aa2fdc51aeeb7c8d7e5d11137935c6d9966dc98179176aac9348623e47c72dd5491b0e54418cd89eb91661fef51ef87f5a7346a9998f9c3
-
SSDEEP
768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cMFqeoYPO+lxUU5:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lf
Malware Config
Signatures
-
Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000400000001e5eb-13.dat CryptoLocker_rule2 -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation 2024-02-28_1cd0dcf7d99c82d32045f2edc50aaf8c_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation misid.exe -
Executes dropped EXE 1 IoCs
pid Process 1840 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 4652 wrote to memory of 1840 4652 2024-02-28_1cd0dcf7d99c82d32045f2edc50aaf8c_cryptolocker.exe 90 PID 4652 wrote to memory of 1840 4652 2024-02-28_1cd0dcf7d99c82d32045f2edc50aaf8c_cryptolocker.exe 90 PID 4652 wrote to memory of 1840 4652 2024-02-28_1cd0dcf7d99c82d32045f2edc50aaf8c_cryptolocker.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-02-28_1cd0dcf7d99c82d32045f2edc50aaf8c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-28_1cd0dcf7d99c82d32045f2edc50aaf8c_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4652 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
PID:1840
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
60KB
MD5140643e3e3f7c224f541be829de06f1f
SHA1dcfbe4d16219f388ef0300430a10d2753918325d
SHA256cf0e64a7d96c96aa0e58edf65792e23ba2b17627eb6c017656da956c42bf19bf
SHA512cfe8346e9f219f6f7a43716be45847fd4e81d4e7bdff812a6a22a88faa404fceead00377c61128d2dd858bb18df12d47deb7327e4dc3aa7d7f994ef7bb04c5fa