Analysis
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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, 17:12
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe
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Size
41KB
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MD5
9439a0c4a7880e6d9843517b732e9694
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SHA1
9363dc101688be8befffc379c47226feb5bd3613
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SHA256
a3954fdbaffd74c474a3af245900c83b017bcd4699314c8f21d7197479f34a91
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SHA512
3dfb0275ef6fa5f4ea068bb06a1c9cdac41bf8bb2044dda61856d1400f0b88f8118422eea2a1dd250d8cf2f1ebe42a224bd0d1715fbee043c683e07b4d7c0ad8
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SSDEEP
768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuD+8:ZzFbxmLPWQMOtEvwDpjLeJAsKcZ
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0008000000022f51-13.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3972 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 2248 wrote to memory of 3972 2248 2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe 82 PID 2248 wrote to memory of 3972 2248 2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe 82 PID 2248 wrote to memory of 3972 2248 2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2248 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3972
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD53f02029863948d49c33ff9e9e324488f
SHA185fc2c2871b4a53474410af836d88e299d083923
SHA25613bfe39f56efc483b7efc0b7aa997640e6ac90fe0d94e31aafa8c88c1d33752e
SHA5129128bf1a0dcae978b954010c883056edfb4f3556f998f36cf418707872188144ffdad12c1a101b1cdf0c05f5978f317664f097b369084d09748cca0bc53db9c5