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Analysis
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max time kernel
150s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
16/04/2024, 05:12
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe
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Size
42KB
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MD5
c12ac62c4900b91271a374254574f1c5
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SHA1
b488b14a5974da475e251d4368f75ba3db79be2f
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SHA256
f2d88ca19f612ca4d1650d68b670d9859ef9ea142493505c09e5a7a296f1eab0
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SHA512
a704a292ee9d44df2f241a06c0501e930fd5179b7079389a53eaf4648b947569f030735b08ae73e0260a69af332e920e7d18c1c866405507b97c449928d4c27e
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SSDEEP
768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphqO:bc/y2lkF0+BeqO
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000c00000001224e-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2620 rewok.exe -
Loads dropped DLL 1 IoCs
pid Process 2300 2024-04-16_c12ac62c4900b91271a374254574f1c5_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 2300 2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe 2620 rewok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2300 wrote to memory of 2620 2300 2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe 28 PID 2300 wrote to memory of 2620 2300 2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe 28 PID 2300 wrote to memory of 2620 2300 2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe 28 PID 2300 wrote to memory of 2620 2300 2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2300 -
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:2620
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
43KB
MD53c902f0b24369d3fc59e6bbe782cd90c
SHA1f78dcf555ae936b79eb685601dacad6ee0e5a97a
SHA256604dcf2df41a8962b67f7af7ded6047dd350e3a761567cb7d5cf74f341bd4d2c
SHA51266b5dbdcfe8a2d2a6b25b94d90f628825f4a927053255eb8cbcdcf7e31dd0ffac2c6e44d5a5b96562de12417d518eb72648abfdd79b6a6bdcf43f4ad393fe244