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Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
23/02/2024, 22:32
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe
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Size
44KB
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MD5
da10cdfeb5dea10b05b3a042f508ef40
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SHA1
ea9aa8382deee85a66cdee83f94b5ba57fa5bead
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SHA256
182ab506e2b9184f9079a9048cb422e6e95382c9b0812445ce219eb9f8f855fe
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SHA512
360ed0e131ae6c77999c0515758236ca855f93bc6b32a1b750589202e2d788d1e150e3b9499001cdb3bc186a32b75f51304f3bb035fa910ba7cb5aebf8f0474b
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SSDEEP
768:btB9g/WItCSsAGjX7r3BPOMHocM4vUUOmJ+96egYB:btB9g/xtCSKfxLIcMzUw968B
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a0000000143fa-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2944 gewos.exe -
Loads dropped DLL 1 IoCs
pid Process 1040 2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of UnmapMainImage 2 IoCs
pid Process 1040 2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe 2944 gewos.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1040 wrote to memory of 2944 1040 2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe 28 PID 1040 wrote to memory of 2944 1040 2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe 28 PID 1040 wrote to memory of 2944 1040 2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe 28 PID 1040 wrote to memory of 2944 1040 2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1040 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:2944
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD56127a3fb13a4daa77998689264715d9b
SHA1a7f9f6fdda3f4c023e4bc37e7656fb0f03e011b5
SHA2569c62f6b0df687fbc9ca781223e4ddb59ab8bfd329ed66c85c52d2068584c3258
SHA512ce7c606c48c7be86a93cfcd6d20b21c382fe5c9d21f0363313fb1b15a171942969c85321c070439c7f2c3ebc60df916f4ca7d1b628c0b628e029351c8d3a1f86