Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
11/06/2024, 03:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe
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Size
42KB
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MD5
0f5d26fe590ca4022a495311c0537c4d
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SHA1
c1b911766c5878873e080e3ba90af99a2bcb673e
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SHA256
01a500567465741efd75fd199171896fc019f3245297d81fd47612c0c160c0af
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SHA512
15ba5301d14f093a308df1aba361919b872973fb9b09406e965a6376cdd5414101eff994e46ff0594f670e37a5924c1e0ee2953efd449775171d3135cbabe3a1
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SSDEEP
768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9xo/:bIDOw9a0Dwo3P1ojvUSD79u/
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0006000000023305-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation 2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2352 lossy.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 1324 wrote to memory of 2352 1324 2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe 82 PID 1324 wrote to memory of 2352 1324 2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe 82 PID 1324 wrote to memory of 2352 1324 2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1324 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:2352
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42KB
MD50bbdd1b5edcd9a7273756f727dd58bd2
SHA1cb64ab7d70198489de116c35facae861cb50ba17
SHA2561fbeec4e108a6ade92840c3424fafc96e3536c8473f38526bf748dca971249e4
SHA512aa2e6571fe9974e15674c69dcfa5e039e50864cb84e7edfb49ec9e70d39b1fcefdc8495e03251f8356dbfbca2f220aef584f520e748bd1a4eb6aebefac1de0c1