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Analysis
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max time kernel
147s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
03/06/2024, 01:19
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-03_a7c85f496655c745446f4d14bf246b13_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-06-03_a7c85f496655c745446f4d14bf246b13_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-03_a7c85f496655c745446f4d14bf246b13_cryptolocker.exe
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Size
74KB
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MD5
a7c85f496655c745446f4d14bf246b13
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SHA1
75c75e052848e198254eeda2df858df603700ad9
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SHA256
bced564c7e51c151b7f085b1245dd1337f24dfd28c7a59279c0270b23ab4ebaf
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SHA512
ab45b165599fa40f84df475e6b14ac7f4494ba3fe5c9e9cbdb8cf4081d16fa05987f6cd40941027a5dfc81a0f238841d63f3b8155fd8207d9b31fa665b73699e
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SSDEEP
768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMsMYL:u6QFElP6n+gWMOtEvwDpjJGYQb1
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b0000000144ac-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000b0000000144ac-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2948 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2360 2024-06-03_a7c85f496655c745446f4d14bf246b13_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 2360 wrote to memory of 2948 2360 2024-06-03_a7c85f496655c745446f4d14bf246b13_cryptolocker.exe 28 PID 2360 wrote to memory of 2948 2360 2024-06-03_a7c85f496655c745446f4d14bf246b13_cryptolocker.exe 28 PID 2360 wrote to memory of 2948 2360 2024-06-03_a7c85f496655c745446f4d14bf246b13_cryptolocker.exe 28 PID 2360 wrote to memory of 2948 2360 2024-06-03_a7c85f496655c745446f4d14bf246b13_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-03_a7c85f496655c745446f4d14bf246b13_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_a7c85f496655c745446f4d14bf246b13_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2948
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
74KB
MD5b7dc8520efd3bb3140d0287e4baee87b
SHA13a4b05b6ed0077bf45754e534b952d062ef14d7f
SHA2560543e8b43dd3e3e783d1606d275b07ddb0aecb17c1ed9098c853f8531c6ed0ce
SHA512dc052ae52937e867fe0ed529afa627772d13c8c62e6b9448e96620f61f07467d15952ab14d72274b157657c16ae2d4b38b7a45d0e9909cb33ac251075ad0b740