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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
04/02/2024, 03:48
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe
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Size
43KB
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MD5
9cc7f22455fcdb1070ad962f2d69485b
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SHA1
11a3d92d05778a300fb58b9c52be5025c4695f18
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SHA256
095ba3b10026f1089dd2af3002187c5c2c021011c7e305bdb75e80a52c19dad0
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SHA512
9661620a5d7d8d6a012752948b7015183896c10bd565501678361418f501a2a9c90b6e4e58fb49c8a8a369639708d725d8c082b50efbba8fcbde99d3059bfbde
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SSDEEP
768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+YUS5p:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+c
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/3028-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a00000001220d-11.dat CryptoLocker_rule2 behavioral1/memory/3028-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2316-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/3028-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a00000001220d-11.dat CryptoLocker_set1 behavioral1/memory/3028-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2316-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2316 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 3028 2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_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 3028 wrote to memory of 2316 3028 2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe 28 PID 3028 wrote to memory of 2316 3028 2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe 28 PID 3028 wrote to memory of 2316 3028 2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe 28 PID 3028 wrote to memory of 2316 3028 2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-04_9cc7f22455fcdb1070ad962f2d69485b_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3028 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2316
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD59b9fac3a25c5455a59d642d6930056b3
SHA155d722380a87c9a256ca2f8617e03be8fbaf6b94
SHA25636da78d81bccc6ba25123f4c0e9dad8bfddd574ae55c17c44293561199c5e3bb
SHA5120277d1e0415cc40c04559c7751d775542bf16944cfb0916596a55bd3c3817d66eaa98b79d0709cc8a839a05c562200aa83608c765e19869948f1a51c7b14bbd6