Analysis
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max time kernel
148s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
18/01/2024, 23:02
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-18_893fa598a5f490dc78a98d3a605c1a2d_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-18_893fa598a5f490dc78a98d3a605c1a2d_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-18_893fa598a5f490dc78a98d3a605c1a2d_cryptolocker.exe
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Size
59KB
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MD5
893fa598a5f490dc78a98d3a605c1a2d
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SHA1
28883b521b85a77623a2d3a25c62c1596f0e45f7
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SHA256
2efa9805e3d13ed2967bf0cba7a3072d0d7eb64b0e7c858b47140df5362dc959
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SHA512
fbc9dd825ae55098339f657099c7dd39247f10c32176bcf8157c942f19e64a3993c9094c6509261f7f1285aace5ebe58bf4fa11836e6f7b21775caa6ab9a0bdb
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SSDEEP
768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZgBh8i6g7GoFwDJ:xj+VGMOtEvwDpjubEgywV
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/files/0x000a000000013a1a-15.dat CryptoLocker_rule2 behavioral1/memory/1684-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2652-13-0x00000000006D0000-0x00000000006E0000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2652-8-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1684-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/files/0x000a000000013a1a-15.dat CryptoLocker_set1 behavioral1/memory/1684-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2652-13-0x00000000006D0000-0x00000000006E0000-memory.dmp CryptoLocker_set1 behavioral1/memory/2652-8-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1684-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/files/0x000a000000013a1a-15.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1684-16-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2652-13-0x00000000006D0000-0x00000000006E0000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2652-8-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1684-27-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 1684 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2652 2024-01-18_893fa598a5f490dc78a98d3a605c1a2d_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 2652 wrote to memory of 1684 2652 2024-01-18_893fa598a5f490dc78a98d3a605c1a2d_cryptolocker.exe 17 PID 2652 wrote to memory of 1684 2652 2024-01-18_893fa598a5f490dc78a98d3a605c1a2d_cryptolocker.exe 17 PID 2652 wrote to memory of 1684 2652 2024-01-18_893fa598a5f490dc78a98d3a605c1a2d_cryptolocker.exe 17 PID 2652 wrote to memory of 1684 2652 2024-01-18_893fa598a5f490dc78a98d3a605c1a2d_cryptolocker.exe 17
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-18_893fa598a5f490dc78a98d3a605c1a2d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-18_893fa598a5f490dc78a98d3a605c1a2d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2652 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1684
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
59KB
MD5f12f2602f6cee9e3a9c086b5c155a175
SHA14d1bde74fcdc8b93170ea57dcd67a71c6baee1bc
SHA256556bc944c976fffe8ff7b743ca28bc956d76dcfaa10efcb345cb846cddbfe45f
SHA5124270e984f8dfe0dcfa0dfe7d74e48647670859766994dd9e2bf5ca4e644f2a1e5fb0f0886005969a4ae4b8b66567fc725c47f07b835066d033d8f37912d95c80