Analysis
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max time kernel
141s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
09/11/2024, 18:39
Behavioral task
behavioral1
Sample
2024-11-09_856b40d3570b6e5c732eeb5e85e70f0a_cryptolocker.exe
Resource
win7-20241010-en
General
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Target
2024-11-09_856b40d3570b6e5c732eeb5e85e70f0a_cryptolocker.exe
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Size
37KB
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MD5
856b40d3570b6e5c732eeb5e85e70f0a
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SHA1
2d4ec5c1674f0c96fa7bde039589e33750e421a8
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SHA256
5d98071135227b0f1cee8e1ffafbbc70148ec2ce67b97ea08000f3b9b0289b7a
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SHA512
5dff3b7dcd38e0471e01e818a484d1bea9529cf7f40428f2d159799debf2c86b3846cfce9210a6da50421ca98c8a22854dae136fbc08bad8603a3a7b1e99e792
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6r:qDdFJy3QMOtEvwDpjjWMl7T6r
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2040 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2344 2024-11-09_856b40d3570b6e5c732eeb5e85e70f0a_cryptolocker.exe -
resource yara_rule behavioral1/memory/2344-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000a000000012262-11.dat upx behavioral1/memory/2344-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2040-26-0x0000000000500000-0x0000000000510000-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 2024-11-09_856b40d3570b6e5c732eeb5e85e70f0a_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 2344 wrote to memory of 2040 2344 2024-11-09_856b40d3570b6e5c732eeb5e85e70f0a_cryptolocker.exe 31 PID 2344 wrote to memory of 2040 2344 2024-11-09_856b40d3570b6e5c732eeb5e85e70f0a_cryptolocker.exe 31 PID 2344 wrote to memory of 2040 2344 2024-11-09_856b40d3570b6e5c732eeb5e85e70f0a_cryptolocker.exe 31 PID 2344 wrote to memory of 2040 2344 2024-11-09_856b40d3570b6e5c732eeb5e85e70f0a_cryptolocker.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-09_856b40d3570b6e5c732eeb5e85e70f0a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-09_856b40d3570b6e5c732eeb5e85e70f0a_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2344 -
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:2040
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
37KB
MD57791cb0245dd7033123f4b9257171957
SHA169b083e578638afcfb41a8368cba464dcbf3f870
SHA256096dadec574232f58a2814ca019ebe34599fde3801601aab44eade4c26c30c34
SHA512b5a87bc9db4679603a60b2e691f64f2f0250a8ee175c0ee28745b48d29c396f1b3c91422731b2f04e48a472eb44af9f6ca8d0d3cbba5f3f65c316082e82658c3