32b7581c481f84275041612a556c68a7e5029596b1db0ac465a327489b8701ff

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20-02-2024 07:26

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General

Target

2024-02-20_417edcdb1a3d4f02a90ebafd3274e504_cryptolocker.exe
Size

93KB
MD5

417edcdb1a3d4f02a90ebafd3274e504
SHA1

f1e1ed53712d5d0a5eeea0e6e593ea8c9e74e68c
SHA256

32b7581c481f84275041612a556c68a7e5029596b1db0ac465a327489b8701ff
SHA512

146b5f8275ceb909977f3a51feb681500e2636b287c18f4dbe6ddb78f7f7e2525e9d109cab1debe8bb29e24fdbd652bde0e4dc99c31beee13cd47b2ac586cdde
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJyzT:xj+VGMOtEvwDpjubwQEIiVmkuzT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/files/0x000800000001223a-26.dat	CryptoLocker_rule2
behavioral1/memory/824-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2240-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2240-14-0x0000000002060000-0x0000000002070000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2240-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/824-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/files/0x000800000001223a-26.dat	CryptoLocker_set1
behavioral1/memory/824-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2240-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2240-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/824-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/files/0x000800000001223a-26.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/824-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2240-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2240-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/824-27-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
824	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-02-20_417edcdb1a3d4f02a90ebafd3274e504_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 824	2240	2024-02-20_417edcdb1a3d4f02a90ebafd3274e504_cryptolocker.exe	1
PID 2240 wrote to memory of 824	2240	2024-02-20_417edcdb1a3d4f02a90ebafd3274e504_cryptolocker.exe	1
PID 2240 wrote to memory of 824	2240	2024-02-20_417edcdb1a3d4f02a90ebafd3274e504_cryptolocker.exe	1
PID 2240 wrote to memory of 824	2240	2024-02-20_417edcdb1a3d4f02a90ebafd3274e504_cryptolocker.exe	1

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
1⤵
- Executes dropped EXE
PID:824

C:\Users\Admin\AppData\Local\Temp\2024-02-20_417edcdb1a3d4f02a90ebafd3274e504_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_417edcdb1a3d4f02a90ebafd3274e504_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
93KB

MD5
8ded28e16cedfca1cb6e970493d6a9d9

SHA1
16922f5a760a6c51fca6c7c2299ea55d5c131acb

SHA256
4461e9825962248f7f5d5bf965dceeec45925b98f0f28e6afda476fda744c8b9

SHA512
45db799655f14431f40ed6c0eae80f7ea7a8665a09aa441c33a36b5f54bd66afd43d85642470bf3dc66a2217cf9385171a3537e1c6f648da6680065cbaf0e4f6

Download Submit
memory/824-20-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/824-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/824-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/824-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2240-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2240-14-0x0000000002060000-0x0000000002070000-memory.dmp

Filesize
64KB

Download
memory/2240-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2240-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download