Analysis
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max time kernel
144s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system -
submitted
23/02/2024, 09:52
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-23_aeae2330f53c7b0a5825ea160f8e34c3_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-23_aeae2330f53c7b0a5825ea160f8e34c3_cryptolocker.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-23_aeae2330f53c7b0a5825ea160f8e34c3_cryptolocker.exe
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Size
59KB
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MD5
aeae2330f53c7b0a5825ea160f8e34c3
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SHA1
bafe29d27a5dca26a3a94427507c66e6bf448132
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SHA256
db2da8cdadb34d108a133da8707dd53c94f9aa3fba02dff7c6e7c295d972341b
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SHA512
242025d5d5fe09e0163fcb127ebf909639e1d695ba8dd523dd9fccc54a1d232661a8b0908a1784300c0b7f64760cc2f03d940fe22cfe40551682baf775a33a60
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SSDEEP
1536:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lBOr:ZVxkGOtEvwDpjP
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x00070000000230ed-13.dat CryptoLocker_rule2 -
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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation 2024-02-23_aeae2330f53c7b0a5825ea160f8e34c3_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4004 misid.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 3028 wrote to memory of 4004 3028 2024-02-23_aeae2330f53c7b0a5825ea160f8e34c3_cryptolocker.exe 87 PID 3028 wrote to memory of 4004 3028 2024-02-23_aeae2330f53c7b0a5825ea160f8e34c3_cryptolocker.exe 87 PID 3028 wrote to memory of 4004 3028 2024-02-23_aeae2330f53c7b0a5825ea160f8e34c3_cryptolocker.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-23_aeae2330f53c7b0a5825ea160f8e34c3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-23_aeae2330f53c7b0a5825ea160f8e34c3_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3028 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:4004
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
59KB
MD5552f281944e3789e9644e93cbbdd67c7
SHA1205d1330b5c04f10d7cec61b7fa160bf9e7ef97a
SHA256550adb299033e30b1eb4a26d16f3ed25758c26e3c5d14adb066b2e34fe43501c
SHA5129a1583899488e9bed8ececd2662f78b05e79e3b96ba9211830249a24eda06a67a275b0d977b68b03379e3e03b331399748b500958211d5a1f64ba00a24071e8b