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Analysis
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max time kernel
149s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
21/02/2024, 16:47
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe
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Size
54KB
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MD5
78059d945f9c9d4f6c0d3e3a8fc09fd5
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SHA1
c5afd4604de4f2f1111fce8f3b7fe1324e3eb9c1
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SHA256
27ad2d13ca9d5948453e4ef9ff4dee05972162f1f8dca3796fc6dba3e74ad8e1
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SHA512
9f675d8b1d36e4e89d5ffbe5ff51d1c1b4f1a99db551c6fcb6f39b4fdabf8a621ecb096180f6b73ec47a1095f2b5e9f883b285276902059220d4a47fd6080d04
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SSDEEP
384:x0VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26a4rIcVRYp055TOtOOtEvwDpjqIGR57:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbKq
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2100-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0009000000012226-14.dat CryptoLocker_rule2 behavioral1/memory/2100-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2548-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/2100-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x0009000000012226-14.dat CryptoLocker_set1 behavioral1/memory/2100-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2548-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 4 IoCs
resource yara_rule behavioral1/memory/2100-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x0009000000012226-14.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2100-15-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2548-19-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2548 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2100 2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_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 2100 wrote to memory of 2548 2100 2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe 28 PID 2100 wrote to memory of 2548 2100 2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe 28 PID 2100 wrote to memory of 2548 2100 2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe 28 PID 2100 wrote to memory of 2548 2100 2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2100 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2548
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
54KB
MD51641f08104f14ee0e2c2354417307ad4
SHA1467d6ddf97a2dda3ccbe37ddbabb8f42f81bc5dd
SHA256552d1df3114404d78e47620af64108e520821b99290e355603c30ee7201f67b8
SHA512ee4a4e1d0011bcfa761ce0da58b3a07dee566cbb2269ac0901e8b96bd89dffa9e60fda3d204631215045e31600f88a9ae6a90235ecf48f9ce27430318663cad0