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Analysis
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max time kernel
93s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
01/05/2024, 04:46
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe
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Size
64KB
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MD5
d832d3808180a2094f2dc19a4ed0f732
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SHA1
1ea9135b8f9f17c0dad22396c56da25f17e557a1
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SHA256
7b7f4e36c64905a2b9bbda14020cd2419c0c5fcd4ed3ab824e4b8a2271945ee9
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SHA512
83867819a63cded055c891280e24c9bb0cf37f76459a6ae49057c3672d5ea6eb3ca5cfc49ed0d425ce38e7d2d079055eb943b9b47718f852e206c3d975168c2b
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SSDEEP
1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHaxp:btng54SMLr+/AO/kIhfoKMHdPp
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023289-12.dat CryptoLocker_rule2 -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation gewos.exe Key value queried \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation 2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1036 gewos.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 2480 wrote to memory of 1036 2480 2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe 82 PID 2480 wrote to memory of 1036 2480 2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe 82 PID 2480 wrote to memory of 1036 2480 2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2480 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
PID:1036
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
64KB
MD524b44cee2a59a5a44dfb8a001e5cd19a
SHA14e46bbc9fd14b957467f47a4e44f4fbe6653fe27
SHA2562afab3ad47dfa191d496fef32304e09b19fa948cb666878e9dc3662ad0d0bf16
SHA51279fd878629037b00bc341c4db63fc2fd6bf77f302915397f1abaed611d7ee6c9d51a3625326c0e54552d212b9e2b3da793b63f547976fb2d6764e73af2f74896