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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
29/05/2024, 03:25
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-29_3203661788e7fc5b5f148f7f1b92a922_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-29_3203661788e7fc5b5f148f7f1b92a922_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-29_3203661788e7fc5b5f148f7f1b92a922_cryptolocker.exe
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Size
52KB
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MD5
3203661788e7fc5b5f148f7f1b92a922
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SHA1
66979426e93d529f42a8c5b3e6049721af5a03b5
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SHA256
786da599b78d5f88284cc2ffdb9c74190a2ffbef1345b8463935765c1e8dd99f
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SHA512
1539c7163fc518e9ae8864ca30d29698755d2011713ffe8a0e07f041e520c9002f2895f7aae42edad9a4e7aaa822f56ff3ffa94f7ea3e0d52f9227c7713ed8db
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhqlcnvhx5/xFRY+iyyDI:6j+1NMOtEvwDpjr8hhXy+iyyc
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/1704-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c000000012287-11.dat CryptoLocker_rule2 behavioral1/memory/1704-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3016-25-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/1704-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000c000000012287-11.dat CryptoLocker_set1 behavioral1/memory/1704-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/3016-25-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 4 IoCs
resource yara_rule behavioral1/memory/1704-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000c000000012287-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1704-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/3016-25-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 3016 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1704 2024-05-29_3203661788e7fc5b5f148f7f1b92a922_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 1704 wrote to memory of 3016 1704 2024-05-29_3203661788e7fc5b5f148f7f1b92a922_cryptolocker.exe 28 PID 1704 wrote to memory of 3016 1704 2024-05-29_3203661788e7fc5b5f148f7f1b92a922_cryptolocker.exe 28 PID 1704 wrote to memory of 3016 1704 2024-05-29_3203661788e7fc5b5f148f7f1b92a922_cryptolocker.exe 28 PID 1704 wrote to memory of 3016 1704 2024-05-29_3203661788e7fc5b5f148f7f1b92a922_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-29_3203661788e7fc5b5f148f7f1b92a922_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-29_3203661788e7fc5b5f148f7f1b92a922_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1704 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3016
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
52KB
MD5afc02359d858177213384a860fe5b045
SHA1c511652f00c1d59d53a4a5760d7312a1a9aa5efd
SHA256843fa8445f68063cba2d368969bea53f6a4346a9ddb90d8def081ca3b6fc38dd
SHA5124f4eaaa8afa3918396b4b4fbda6fe63dbd01f3e1d031dd3c1b2dc43951156b98b459abc9eb981ffe2421cf870035ef984152ed910195d37df5430f44644585d3