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Analysis
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max time kernel
148s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
24/02/2024, 19:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe
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Size
45KB
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MD5
42f5c7a35d6765a3fa93e0d215249c21
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SHA1
440fd2abc7c4e3bbd2072f66af6c03a141526799
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SHA256
5981156cb99a0d0209a84bb51721a0389ece2a59fb264dc9ca6c604782cadfce
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SHA512
2c432e071d128cc819fd71d1ea9d0f744a694266e659faa670948aa6b1e92895e16e48c9d5c30030ec8cab6dbb5ab9f5e0b67d8231c56d0aaf1fde5c4c3f1ab5
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SSDEEP
768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+My1j5B:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+9
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2460-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0008000000012262-11.dat CryptoLocker_rule2 behavioral1/memory/2460-13-0x00000000020E0000-0x00000000020EB000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2460-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2484-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/2460-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x0008000000012262-11.dat CryptoLocker_set1 behavioral1/memory/2460-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2484-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2484 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2460 2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_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 2460 wrote to memory of 2484 2460 2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe 28 PID 2460 wrote to memory of 2484 2460 2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe 28 PID 2460 wrote to memory of 2484 2460 2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe 28 PID 2460 wrote to memory of 2484 2460 2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2460 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2484
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46KB
MD5a1905a3f386322bf5573c3621ddd7e37
SHA1d6fa9205e2b081ad251ea53bfad535fb4aa3f93a
SHA2563e28c1e5083b091b7d2b7cec0463ac5fa6deba753296fd774c40a5dcef1150a7
SHA5125a4844dfb6e8439dc212693cae8f492022bfeeb9dcfaefe53be6b5645b97067967ed94f9f1ff0716ce2112d4aba8052635b26386f1a638c875d8ae83a5678609