Analysis
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max time kernel
148s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
03/06/2024, 23:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe
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Size
56KB
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MD5
ee404bc0b2e793f0e345a860dfd9fbed
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SHA1
255c8423f43f30f32830f2138ea79c38ccb9c0b9
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SHA256
79299ddae481e19001fa8664d6edc84d85c868602a7b588bfd955e961a24a413
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SHA512
11bc5a511fdd929d19eafbdd1eb91f68dbd473f62f76b599803dcf273bb32465bd5fa5d546ec9b8f05265e0c7503f8c45440a550a61c9fd1c701862e0488b3ec
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SSDEEP
768:b7o/2n1TCraU6GD1a4Xcn62tH/1/Lp17zJIfeVEuUr6WS:bc/y2lm6iH/NLp17zrV98S
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000012280-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 1732 rewok.exe -
Loads dropped DLL 1 IoCs
pid Process 1960 2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of UnmapMainImage 2 IoCs
pid Process 1960 2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe 1732 rewok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1960 wrote to memory of 1732 1960 2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe 28 PID 1960 wrote to memory of 1732 1960 2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe 28 PID 1960 wrote to memory of 1732 1960 2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe 28 PID 1960 wrote to memory of 1732 1960 2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1960 -
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:1732
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
56KB
MD59e417ccbafb04a93f75b827f0432e103
SHA1d30d89eb009eb46d7ab64e02201e6664bd46c418
SHA2562194ae68de4d97ae056d1c1331675d42e93f60759a79677644926167124ccd28
SHA5125062597e454326f9f301e671dde84a1b0fe1ece8ed6f8a5c492bd0e1391e31b4c86c9cd8ea4b34f069a57a39ebf37dc6513d000eaca3b7ebce2943644bc3118a