Analysis
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max time kernel
0s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
09-01-2024 06:49
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe
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Size
34KB
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MD5
e4f1aa58cb9e1f2983a8d61241518954
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SHA1
b2d32cd642563719da21e4d32bd55513c420aa6a
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SHA256
acc2a8b84b261511de247ab64c5c1242fcbf5102f8dc9128a3cde0d71c570aac
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SHA512
793505a3b2f781b38fef9b1d68b4efe0b829e4fc88a45b4ad308a97051e37d4465145c240448a3dc531d8ab95f7fb547c189de245e1ab04ab239e5e185007d4f
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SSDEEP
384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiA0J5+:btB9g/WItCSsAGjX7e9NQM
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2160 gewos.exe -
Loads dropped DLL 1 IoCs
pid Process 2824 2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_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 2824 2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe 2160 gewos.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2824 wrote to memory of 2160 2824 2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe 16 PID 2824 wrote to memory of 2160 2824 2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe 16 PID 2824 wrote to memory of 2160 2824 2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe 16 PID 2824 wrote to memory of 2160 2824 2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe 16
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2824 -
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:2160
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
34KB
MD50b82d32126e566d026353be4fd8aecc3
SHA1a71c7ff37d4513008d203533f29205d6aeeef556
SHA25636eb2755a70b7c4943e3ec625c3db2bc8b4422cde47fed1dde92db1e6de6defb
SHA512528fbc6c6f8209f8ced2f272b53785fc1f8969dc07e7845cc7a1e8f85d625e22c41e688c3055567f3ca2ee3e00576f8a3720f5077150fd797e2a9208aaecfb53
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Filesize
14KB
MD5c4aa11d71ea3db2a16a9ba8bbce89787
SHA1ef9eb8f9f1835fd7c043e78be834812bfca7a573
SHA2568c502137c0011f59c5f3781992c50b1ad458babab2473c34473fdcabb77cf2c3
SHA512cd7886f4077e6d801f340bb0143153fd29f557255a1fff7267a028bb0b989c497a815c69f9711d76013c441e515fff691ef96db53f4eedfaa240587b77944275