Analysis
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max time kernel
141s -
max time network
139s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
05-10-2024 05:36
Behavioral task
behavioral1
Sample
2024-10-05_6ff38edcc379a555064e08970624efa9_cryptolocker.exe
Resource
win7-20240903-en
General
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Target
2024-10-05_6ff38edcc379a555064e08970624efa9_cryptolocker.exe
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Size
38KB
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MD5
6ff38edcc379a555064e08970624efa9
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SHA1
26e1fabf415e9832613ba246552379f728f9534e
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SHA256
0da086a68286715f777921e34858282be7e934d59ad9977254bb1dafd1f174f6
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SHA512
60b863f0d8ab7bed0bffbc422752b9ef6fb9124e24666eae8ab468534ef55cc68dbcc6bef0fdc4f2abcf60dffca0a50e5db9973b6573c0c9ac00308e463eefa7
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITin:qDdFJy3QMOtEvwDpjjWMl7Tin
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 836 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2516 2024-10-05_6ff38edcc379a555064e08970624efa9_cryptolocker.exe -
resource yara_rule behavioral1/memory/2516-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000b000000012029-16.dat upx behavioral1/memory/2516-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/836-26-0x0000000000500000-0x0000000000510000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-05_6ff38edcc379a555064e08970624efa9_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2516 wrote to memory of 836 2516 2024-10-05_6ff38edcc379a555064e08970624efa9_cryptolocker.exe 30 PID 2516 wrote to memory of 836 2516 2024-10-05_6ff38edcc379a555064e08970624efa9_cryptolocker.exe 30 PID 2516 wrote to memory of 836 2516 2024-10-05_6ff38edcc379a555064e08970624efa9_cryptolocker.exe 30 PID 2516 wrote to memory of 836 2516 2024-10-05_6ff38edcc379a555064e08970624efa9_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-05_6ff38edcc379a555064e08970624efa9_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-05_6ff38edcc379a555064e08970624efa9_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:836
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
38KB
MD5a05581e398859324d5467cb58c346139
SHA171581569af03c0594d21df285484618624053be3
SHA2560c585150819f8e0a4753dfd23130ceb3c64874a9ce7e56637353873a0fab6886
SHA512e5d966af050245a50ba65579237835f313c868119b6a460c1b458c5f5cf0df2a7a9291e1e705ed6fa2b8df1276b33bbd360ecbb8051fe0ce29938241e8adc244