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Analysis
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max time kernel
148s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
28/01/2024, 05:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-28_8bec0bc0757b3485a750ba0ddf1ab05d_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-28_8bec0bc0757b3485a750ba0ddf1ab05d_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-28_8bec0bc0757b3485a750ba0ddf1ab05d_cryptolocker.exe
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Size
96KB
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MD5
8bec0bc0757b3485a750ba0ddf1ab05d
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SHA1
65ac928588443eda471aca2b4836f93ec55886c2
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SHA256
7692ecfaf313d027afdea452c50a9827689d058c79d77cf3c858191e1159a82a
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SHA512
e2ae5311322733e7c0ce9540879731b743e6d8283ad2b22cf8d082c42dcd685deef1eb7c917b24c0727ba4ff2bd7f6aefa4180ae4c47b0893de29a72e50ad127
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SSDEEP
1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCWPx:26a+2OtEvwDpjtzn
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x0009000000012248-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x0009000000012248-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2176 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1696 2024-01-28_8bec0bc0757b3485a750ba0ddf1ab05d_cryptolocker.exe -
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 1696 wrote to memory of 2176 1696 2024-01-28_8bec0bc0757b3485a750ba0ddf1ab05d_cryptolocker.exe 28 PID 1696 wrote to memory of 2176 1696 2024-01-28_8bec0bc0757b3485a750ba0ddf1ab05d_cryptolocker.exe 28 PID 1696 wrote to memory of 2176 1696 2024-01-28_8bec0bc0757b3485a750ba0ddf1ab05d_cryptolocker.exe 28 PID 1696 wrote to memory of 2176 1696 2024-01-28_8bec0bc0757b3485a750ba0ddf1ab05d_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-28_8bec0bc0757b3485a750ba0ddf1ab05d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-28_8bec0bc0757b3485a750ba0ddf1ab05d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1696 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2176
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
97KB
MD581770f5840e0cc9e2b32a2cf33c1e289
SHA17826fa319adc5d346ae82900554cdbca0efc0f8e
SHA25638429e8a9302b00b7ce38045a6f7ddbad4c130a78c72256b7b83c2d5e7aa9a49
SHA512b2335fdaaeb9dce46dc994de193de95752a6e1c6d8448176e9b143c937c0b2626baa768459d7aa96c935c9f3bbedb40e3ac7cbc513265d2da583ebb9490a1939