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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
28/02/2024, 19:59
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe
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Size
4.5MB
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MD5
fd760cb3834dd75ba4833357b3be9624
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SHA1
f7dc45e22a083219a1d1c32808cd8a028b0a819d
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SHA256
5f3ca0d00c8ebeb870549e2b321ac9bd9cc68acf8a569276b2c25fda459e8f28
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SHA512
e99116b8423baec72235238f0f5700e442b59f568e0ce65e188a08502c8fcaa891e72151515bdd23e18646ee88dde916277493af80811b7cf7af14edebc71259
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SSDEEP
98304:g/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTU:g/ZFIjBzF/ZFIjBzPEUusU
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b00000001224f-10.dat CryptoLocker_rule2 -
Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral1/files/0x000b00000001224f-10.dat INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 1688 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 1288 2024-02-28_fd760cb3834dd75ba4833357b3be9624_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 1288 wrote to memory of 1688 1288 2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe 28 PID 1288 wrote to memory of 1688 1288 2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe 28 PID 1288 wrote to memory of 1688 1288 2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe 28 PID 1288 wrote to memory of 1688 1288 2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1288 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:1688
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4.5MB
MD50aad79690ada6f78b4fc42b014eaf503
SHA1b0c1b846691fd4f075efa292f473ff243e981845
SHA256f0fa4f6dd32481689e8002eb0330c78e85b908c8511f0e04aa0da852c7ad220b
SHA512ac5efc4879b7bdea62c9ce9a096e77ba4590dd1b0fafa17b7a894947b84f284a6c5ae93ceb805358eaa403eba068c7946557e45921458ce8dc91f55730ad5b9a