Analysis
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max time kernel
175s -
max time network
193s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
04/01/2024, 15:14
Behavioral task
behavioral1
Sample
2024-01-03_4c338ee257669bf8483b08fdc1218fb0_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-03_4c338ee257669bf8483b08fdc1218fb0_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-03_4c338ee257669bf8483b08fdc1218fb0_cryptolocker.exe
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Size
87KB
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MD5
4c338ee257669bf8483b08fdc1218fb0
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SHA1
2f1c7410f85dfc1bee015b8e40637a6c9bd8c442
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SHA256
748a4fbe8eaad61e35cccd6389e20bbe7503c78231b4473415db239876bd28d6
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SHA512
658f572fb47ef50f3e883726e9c0493d4b7dc96b7e35d1bbd224a6dcb8f69981206a948916a41e98436984e9fe775b5a3bf8c9af3cd112c6a0259a02aed656b6
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjB:zCsanOtEvwDpjM
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2608 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2600 2024-01-03_4c338ee257669bf8483b08fdc1218fb0_cryptolocker.exe -
resource yara_rule behavioral1/memory/2600-1-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000a000000012255-11.dat upx behavioral1/memory/2600-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2608-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2608-26-0x0000000000500000-0x0000000000510000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2600 wrote to memory of 2608 2600 2024-01-03_4c338ee257669bf8483b08fdc1218fb0_cryptolocker.exe 29 PID 2600 wrote to memory of 2608 2600 2024-01-03_4c338ee257669bf8483b08fdc1218fb0_cryptolocker.exe 29 PID 2600 wrote to memory of 2608 2600 2024-01-03_4c338ee257669bf8483b08fdc1218fb0_cryptolocker.exe 29 PID 2600 wrote to memory of 2608 2600 2024-01-03_4c338ee257669bf8483b08fdc1218fb0_cryptolocker.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-03_4c338ee257669bf8483b08fdc1218fb0_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-03_4c338ee257669bf8483b08fdc1218fb0_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2600 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2608
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
87KB
MD5f9b0183584608d852ee4d1210e5d48df
SHA1b124e057b75e2892947b5a2acdd58967829dbe33
SHA256ca9f19615f1e8c4f2d4b5dbb0678f4ab6cb5c2349ea6416032f71694a608813c
SHA5125e65daa32133432903e8d5f13524d92edc635775aa483f8ba8f68f2a8e374d8e9b026752c1b868c500e1e2d1c11b9e3d73c720489b9c6326a93ac55e3f4c2746