5d43693a3e0fc13ec77917334b23f9c84b8d3c019615346e2da87fab4b43f9ad

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 16:04

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General

Target

2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe
Size

83KB
MD5

ee689708d2b907e9796b2804d4ce2f1d
SHA1

4f383c4407329901533849a7cf175fb5dabc07e7
SHA256

5d43693a3e0fc13ec77917334b23f9c84b8d3c019615346e2da87fab4b43f9ad
SHA512

b3488d19b6b8707a6d804c1c20563fe2e0bf2b900e0ba2b5fd88471bbb939e626ed4ed3e39c8207ee64c58b2adf0fd7b8c5db66a9210c69622d3413e74ac9906
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrpb:TCjsIOtEvwDpj5HE/OUHnSMP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1708-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/1708-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1708-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/1708-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3012-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3012-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

3012 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe

pid process

1708 2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3012	misid.exe

pid	process
1708	2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe

description	pid	process	target process
PID 1708 wrote to memory of 3012	1708	2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe	misid.exe
PID 1708 wrote to memory of 3012	1708	2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe	misid.exe
PID 1708 wrote to memory of 3012	1708	2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe	misid.exe
PID 1708 wrote to memory of 3012	1708	2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_ee689708d2b907e9796b2804d4ce2f1d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1708

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:3012

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
83KB

MD5
396f550bdbb55387f065b2f74082e072

SHA1
745f7cfb40c440ab3fd2ba146fdafca230a12eba

SHA256
a479db1e8b5e429f17759e6e90a97b6d7b34f23db77ce775968b6dc02079e475

SHA512
4db657d6d68677ef047f72bc2360ba403fe5ba8d32db373f5caaafbfb535f83d7e60bfe93cfb6d17c15acc85a0ea7d9b2d7299031e7e2f01653b55b4881e5685

Download Submit
memory/1708-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1708-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1708-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1708-3-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1708-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3012-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3012-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3012-18-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/3012-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download