ef4bde3f97d8af246fb2bafe7ef0b2a1f0440f5f986c46b1fc14d777830b8a48

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 15:45

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General

Target

2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe
Size

46KB
MD5

94dbcba8ecef696b74ca20ad8302d53e
SHA1

8079e8ba19a3c387b73ff96210049f643555b85e
SHA256

ef4bde3f97d8af246fb2bafe7ef0b2a1f0440f5f986c46b1fc14d777830b8a48
SHA512

59c38c51522fd261345d1ac6b6be65fe0896508dce2f39b88c2ec0c54ccbc666cbfb2555ef93354152f668f6728270db77b26b62bd5b3e626ffa420c4bf25246
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1ws2:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001232e-22.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2224	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2512	2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_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 2512 wrote to memory of 2224	2512	2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2224

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
46KB

MD5
11c0fa8df0e7d92d749ba5e2542976f2

SHA1
425618e77e8a0e94f70596d5a76dbaaa6d811c46

SHA256
9c43b4b8f2266a841ab6f547dde5319ade21a2a1f0f8b8268edb894d8af56193

SHA512
984f93aac4cd85557343feb39ea0e827c84a8dee9078baba5f9d884bb38db8b3388e943685a0e95ef643a6d9461a83f6cb0156e39fad8c8a929c2000c60fe228

Download Submit
memory/2224-16-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2224-23-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download
memory/2224-24-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2512-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2512-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2512-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2512-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download