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Analysis
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max time kernel
147s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
27/04/2024, 18:27
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-27_2419ca9af5e8c90edb7924544b2cc7ba_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-27_2419ca9af5e8c90edb7924544b2cc7ba_cryptolocker.exe
Resource
win10v2004-20240419-en
General
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Target
2024-04-27_2419ca9af5e8c90edb7924544b2cc7ba_cryptolocker.exe
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Size
74KB
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MD5
2419ca9af5e8c90edb7924544b2cc7ba
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SHA1
bf52bf6f9129cc3fae94998494af58e291cb15da
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SHA256
e70ccb4a2cbc12f4ca8a3031bb5511e15c8fcde3ac5d9cd133a212ff02622195
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SHA512
a2df12a30facb7ca2e0f44f2d962f74d79c1e6714cca481581cb1a0df4f75b32d2ee8ebe71c2b1759ef675a5aa7da06d9236bfc57f6d04900df2fff0ee6b52d5
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsw:X6a+SOtEvwDpjBZYvQd2f
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000f000000012334-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000f000000012334-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 3064 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2400 2024-04-27_2419ca9af5e8c90edb7924544b2cc7ba_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 2400 wrote to memory of 3064 2400 2024-04-27_2419ca9af5e8c90edb7924544b2cc7ba_cryptolocker.exe 28 PID 2400 wrote to memory of 3064 2400 2024-04-27_2419ca9af5e8c90edb7924544b2cc7ba_cryptolocker.exe 28 PID 2400 wrote to memory of 3064 2400 2024-04-27_2419ca9af5e8c90edb7924544b2cc7ba_cryptolocker.exe 28 PID 2400 wrote to memory of 3064 2400 2024-04-27_2419ca9af5e8c90edb7924544b2cc7ba_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-27_2419ca9af5e8c90edb7924544b2cc7ba_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-27_2419ca9af5e8c90edb7924544b2cc7ba_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2400 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:3064
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
74KB
MD53128fc8be68d7f376ce94d1e4488a378
SHA1e55471182a067b64cd09f7bf4196e1585809ea2b
SHA256dd65ca0668374997d1bfe626bed37a0807642a40a764e2e268673e6e84eb35f7
SHA512dcee8c327a5274848d7b524555f4b1b26facfe8f36ba52cd6351243e3a0d1363faa8077aa81d55589126f5f5f1d8cd5b6ee9ce1172413e353e98c67eb001f468