Analysis
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max time kernel
147s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
24-05-2024 04:13
Behavioral task
behavioral1
Sample
dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exe
Resource
win10v2004-20240508-en
General
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Target
dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exe
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Size
39KB
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MD5
820ac1958f78f9b7d0f517548553da87
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SHA1
3f67a90ad07818ff3c05befb21e0e7828bbdde57
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SHA256
dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d
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SHA512
369cbec5abf5ac1bb9cd0d01b20c91af3cce307235f2ad9a0da663834a15b994405151d918f4f48c37edb2001f28c89f2b3d677e007358108bea46f183678b44
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY/q:qDdFJy3QMOtEvwDpjjWMl7Tb
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1868-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 \Users\Admin\AppData\Local\Temp\asih.exe CryptoLocker_rule2 behavioral1/memory/1868-13-0x00000000006C0000-0x00000000006D0000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1868-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1636-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1868-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 \Users\Admin\AppData\Local\Temp\asih.exe CryptoLocker_set1 behavioral1/memory/1868-13-0x00000000006C0000-0x00000000006D0000-memory.dmp CryptoLocker_set1 behavioral1/memory/1868-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1636-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1868-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX \Users\Admin\AppData\Local\Temp\asih.exe UPX behavioral1/memory/1868-13-0x00000000006C0000-0x00000000006D0000-memory.dmp UPX behavioral1/memory/1868-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/1636-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
Processes:
asih.exepid process 1636 asih.exe -
Loads dropped DLL 1 IoCs
Processes:
dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exepid process 1868 dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exe -
Processes:
resource yara_rule behavioral1/memory/1868-0-0x0000000000500000-0x0000000000510000-memory.dmp upx \Users\Admin\AppData\Local\Temp\asih.exe upx behavioral1/memory/1868-13-0x00000000006C0000-0x00000000006D0000-memory.dmp upx behavioral1/memory/1868-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/1636-27-0x0000000000500000-0x0000000000510000-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
Processes:
dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exedescription pid process target process PID 1868 wrote to memory of 1636 1868 dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exe asih.exe PID 1868 wrote to memory of 1636 1868 dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exe asih.exe PID 1868 wrote to memory of 1636 1868 dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exe asih.exe PID 1868 wrote to memory of 1636 1868 dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exe asih.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exe"C:\Users\Admin\AppData\Local\Temp\dd32a8393e24c67342c2ecf3c539caa7924654ebe67bde08db4fb5ea1e082f1d.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1868 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:1636
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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\Users\Admin\AppData\Local\Temp\asih.exeFilesize
40KB
MD511b5d16c71b67f70a6dc734cbd5954c2
SHA13f5c6f377129474f82ef1541fe83cef37af5441b
SHA2569f160a532d747e64fe1ca2e369f37125805608e91fc8d680e9f8a5c2b3ab2800
SHA512e986870d2e47fb1fbdaac635cd1744276506037aaeb9b0cda0576c52061801c211b78c0e88d51593c82e269bfba63d0c12fae37b942eb4e1d88fee92fb5c3ce9
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memory/1636-19-0x00000000002C0000-0x00000000002C6000-memory.dmpFilesize
24KB
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memory/1636-27-0x0000000000500000-0x0000000000510000-memory.dmpFilesize
64KB
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memory/1636-26-0x0000000000280000-0x0000000000286000-memory.dmpFilesize
24KB
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memory/1868-0-0x0000000000500000-0x0000000000510000-memory.dmpFilesize
64KB
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memory/1868-1-0x00000000003A0000-0x00000000003A6000-memory.dmpFilesize
24KB
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memory/1868-2-0x0000000000460000-0x0000000000466000-memory.dmpFilesize
24KB
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memory/1868-9-0x00000000003A0000-0x00000000003A6000-memory.dmpFilesize
24KB
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memory/1868-13-0x00000000006C0000-0x00000000006D0000-memory.dmpFilesize
64KB
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memory/1868-17-0x0000000000500000-0x0000000000510000-memory.dmpFilesize
64KB