32b8e7191894d738bbb3e8e833ff0f2f4220b303f1fbb59ff23912b05337d618

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 20:44

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General

Target

2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe
Size

41KB
MD5

6d8129968a62e5934597561ee18f941c
SHA1

8a3f5e2adcf0967055a2064a8c5e730f38a9b384
SHA256

32b8e7191894d738bbb3e8e833ff0f2f4220b303f1fbb59ff23912b05337d618
SHA512

655882ae663854636edcd88e041ad851106e76d0f8ae0ecbe7b4f9be6095ff0476d8dfe7e3ba3dc1aa2a2b78fd5a714107f4db984e9b6871e231d66f9ac4ecd8
SSDEEP

384:60VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26aIIcVRYpetOOtEvwDpjqIGRmdHzOOK:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/M

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2208-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000900000001225e-11.dat	CryptoLocker_rule2
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2992-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2208-13-0x0000000002380000-0x000000000238F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2992-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2208-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000900000001225e-11.dat	CryptoLocker_set1
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2992-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2992-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2208-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000900000001225e-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2992-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2992-27-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2992	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	2024-04-15_6d8129968a62e5934597561ee18f941c_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 2208 wrote to memory of 2992	2208	2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe	28
PID 2208 wrote to memory of 2992	2208	2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe	28
PID 2208 wrote to memory of 2992	2208	2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe	28
PID 2208 wrote to memory of 2992	2208	2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_6d8129968a62e5934597561ee18f941c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2992

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

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

Filesize
41KB

MD5
b5a97cdc8884b7993524954db3cec560

SHA1
9eda0a49d045a65256a5a9345b6d766fb83cdc98

SHA256
96b1aa96f883e72418a0fe23b5524553b84cf390851859225c8651a047f49507

SHA512
3f163b21faf0d56c0fda7b72c215236b0e6a8f2b236e4d0fb28fd8c8767e443bf6f7dfa6855c77053076b3df15ef1647c4c6665b99f1667832af3ca766a684a8

Download Submit
memory/2208-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2208-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2208-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2208-3-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2208-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2208-13-0x0000000002380000-0x000000000238F000-memory.dmp

Filesize
60KB

Download
memory/2992-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2992-20-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2992-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2992-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download