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Analysis
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max time kernel
150s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
13/02/2024, 21:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe
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Size
93KB
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MD5
5085ada1b0f46d6b4e692b4c937bf4dc
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SHA1
fb9f25e905385ba553deb2bbfd28a3c4769457eb
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SHA256
0da077d071fe7cd61a854d39f27a1f798094e462ce8b21497daa8aec4a83fe2a
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SHA512
fe98c79f9e8897c7e13f02aa77c7a3e758f2f54711741065fdf79e97e09dbdd68b94a39dc37bb0d4fd883342e61c045c6786034c1bd4f14b61ac3f89ba456d0b
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SSDEEP
768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJyj:xj+VGMOtEvwDpjubwQEIiVmkuj
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/1860-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000e000000012247-11.dat CryptoLocker_rule2 behavioral1/memory/1860-13-0x00000000024C0000-0x00000000024D0000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1860-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1464-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1464-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1860-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000e000000012247-11.dat CryptoLocker_set1 behavioral1/memory/1860-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1464-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1464-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/1860-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000e000000012247-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1860-15-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1464-17-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1464-27-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 1464 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1860 2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_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 1860 wrote to memory of 1464 1860 2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe 28 PID 1860 wrote to memory of 1464 1860 2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe 28 PID 1860 wrote to memory of 1464 1860 2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe 28 PID 1860 wrote to memory of 1464 1860 2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-13_5085ada1b0f46d6b4e692b4c937bf4dc_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1860 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1464
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
93KB
MD5e259857a6e56f2e87a69f9b29348cdd1
SHA1a40d02693c2293e435f82772703acd4be709692b
SHA256418b70d091c810a6ac427d8234233028b9ba31ea6ce2d37bd1daff5dfa00a5c6
SHA512ef181275129554fb8d3b935293d5cbc0422d3f681ef6a74ff9a3a44da11f583633ea7db5ee2a6e5ddb4dbb009405af7937e2dfbaef3d8f376461fc196fbf1e81