Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
10/06/2024, 04:38
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe
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Size
75KB
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MD5
1919babdd13e7946899294d8b5718ba2
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SHA1
f224325d6d767774d3992b8567808e7e425cc51f
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SHA256
9c70e07e47b6adbed6d7a15793e9df12bc9f628dbe6820da8e8af829fd1f2e0b
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SHA512
ad70ffaa600f83dc217946efa2f14a6e0026d274aae7f1b1d627dc0b15e45b5ee8398b34e25ba65f988605aa090135ad27c45ce17f952b1b4602145f16a1029d
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SSDEEP
768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMs63a/:u6QFElP6n+gWMOtEvwDpjJGYQbX/
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0008000000023489-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x0008000000023489-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation 2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3012 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 2820 wrote to memory of 3012 2820 2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe 81 PID 2820 wrote to memory of 3012 2820 2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe 81 PID 2820 wrote to memory of 3012 2820 2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2820 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:3012
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
75KB
MD56f5b9a0972c52c5b3fc3ce0c9d5cb5b1
SHA1c2326c6b578d72438ebfcdb83a5a774e8b90a8c1
SHA2568e6470c0e48b3a3f43e55cd21ac7c4d0fc11b058204e30bcfd0f47368de09161
SHA512100009a04692a9c8bea96dd393160621e7abc6ecd6bf4fda0eac894aa777c32741c8ba6ca9592aef3baa93ecd2cde2eeab8db8b8a6ceffec271c55db8f1dbc57