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Analysis
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max time kernel
149s -
max time network
156s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
19/03/2024, 09:48
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-19_8be055ef89f5cd57ca12e27d7d47508d_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-19_8be055ef89f5cd57ca12e27d7d47508d_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-19_8be055ef89f5cd57ca12e27d7d47508d_cryptolocker.exe
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Size
63KB
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MD5
8be055ef89f5cd57ca12e27d7d47508d
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SHA1
2a0670c8554856adeab184101e393e0165693bfa
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SHA256
dfc44d5643185c2aa5a2fd4b6ffc20bda3310a77f4e3c7709e24258fc4afe499
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SHA512
cbd8cff228c2b3164cf8ec347f77b297d720902540d8fb03d026843e472f2b83fc54cfd80cdb34984671137ae29b5504ca127f0e3190a60d41c80d01ca9d60be
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEKIR8:6j+1NMOtEvwDpjr8ox8UDEKK8
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2720-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0008000000012262-11.dat CryptoLocker_rule2 behavioral1/memory/2720-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2480-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2480-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2720-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x0008000000012262-11.dat CryptoLocker_set1 behavioral1/memory/2720-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2480-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2480-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2720-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x0008000000012262-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2720-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2480-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2480-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2480 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2720 2024-03-19_8be055ef89f5cd57ca12e27d7d47508d_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 2720 wrote to memory of 2480 2720 2024-03-19_8be055ef89f5cd57ca12e27d7d47508d_cryptolocker.exe 28 PID 2720 wrote to memory of 2480 2720 2024-03-19_8be055ef89f5cd57ca12e27d7d47508d_cryptolocker.exe 28 PID 2720 wrote to memory of 2480 2720 2024-03-19_8be055ef89f5cd57ca12e27d7d47508d_cryptolocker.exe 28 PID 2720 wrote to memory of 2480 2720 2024-03-19_8be055ef89f5cd57ca12e27d7d47508d_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-19_8be055ef89f5cd57ca12e27d7d47508d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-19_8be055ef89f5cd57ca12e27d7d47508d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2480
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
64KB
MD5980a8a3032e4686ea56f7ebcc3c9601b
SHA11060d842183df47da4a387a79cff632884761369
SHA25610a052a820eed23003baca48b9c3e3d0ef08e22579e0bff6b3379834ec4874dd
SHA5128215e7c7287f043d18bb05803e20fc82e574a152c4048e0b4e2a580ecc072c78e570d06384f73732a00efbc72546bcee4f21b4e1a8d23679dd396c6a143383fa