Analysis
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max time kernel
149s -
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
02/06/2024, 04:46
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-02_c6e2575af2bc37db023551ce04606835_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-06-02_c6e2575af2bc37db023551ce04606835_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-02_c6e2575af2bc37db023551ce04606835_cryptolocker.exe
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Size
50KB
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MD5
c6e2575af2bc37db023551ce04606835
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SHA1
8b3c5c367cc85ff75c02aaba15d7c613e7d9cb90
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SHA256
9f20d4f5908416e71943749e75a4b08fca964c87e6a93a233b81cdf792fd4f65
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SHA512
61033f93fdabff873e08a59be936fea88b343b3cad174471a8dbc5a02f569481dc063c7260ecef3d637329c224612580ab06c4bead16adfcbd210fd2baae0c0c
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZa1:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLw1
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000500000002326f-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000500000002326f-12.dat CryptoLocker_set1 -
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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation 2024-06-02_c6e2575af2bc37db023551ce04606835_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 348 asih.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3220 wrote to memory of 348 3220 2024-06-02_c6e2575af2bc37db023551ce04606835_cryptolocker.exe 84 PID 3220 wrote to memory of 348 3220 2024-06-02_c6e2575af2bc37db023551ce04606835_cryptolocker.exe 84 PID 3220 wrote to memory of 348 3220 2024-06-02_c6e2575af2bc37db023551ce04606835_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-02_c6e2575af2bc37db023551ce04606835_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_c6e2575af2bc37db023551ce04606835_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3220 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:348
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50KB
MD5ecd2085322991c5e2c7e82d3ecaab50b
SHA11fd503434b389d90eb6dcbdb16641df857e24fd1
SHA2561457c61b6be61d43d5abf9d32ccb1f7c50cc319061ec9cd9f8e4470c4352d92f
SHA512bb7346da0dbf6280e0177aad9cdedd670323967c5ec54c4d18c07ce367dab10a9e191fff086b854c93bb4057a152faa72f6d1ec843418081536457c14898f185