f53f72b55cf399388edc49ae7a516fd3f9607853012c3f01e8e44c8ad83568d7

Analysis

max time kernel
149s
max time network
156s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 03:40

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General

Target

2024-03-10_b70f9e667b82a94a5e82ab47625f2f56_cryptolocker.exe
Size

44KB
MD5

b70f9e667b82a94a5e82ab47625f2f56
SHA1

fec8ded8f1ecd10eb2abfa819eabda889f0d3dc0
SHA256

f53f72b55cf399388edc49ae7a516fd3f9607853012c3f01e8e44c8ad83568d7
SHA512

01c28f21019c72b64da2df870dffc28200cd271c6ac60070b43a0fa36ca6f640ba0ec3e22e14eff60a2433c5d3cc5e2bd0c1e5edbdbc437c48a84394baa68462
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66nkpb9WV:vj+jsMQMOtEvwDpj5HW5IiC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001227e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001227e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3000	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
3052	2024-03-10_b70f9e667b82a94a5e82ab47625f2f56_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 3052 wrote to memory of 3000	3052	2024-03-10_b70f9e667b82a94a5e82ab47625f2f56_cryptolocker.exe	28
PID 3052 wrote to memory of 3000	3052	2024-03-10_b70f9e667b82a94a5e82ab47625f2f56_cryptolocker.exe	28
PID 3052 wrote to memory of 3000	3052	2024-03-10_b70f9e667b82a94a5e82ab47625f2f56_cryptolocker.exe	28
PID 3052 wrote to memory of 3000	3052	2024-03-10_b70f9e667b82a94a5e82ab47625f2f56_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_b70f9e667b82a94a5e82ab47625f2f56_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_b70f9e667b82a94a5e82ab47625f2f56_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3000

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
44KB

MD5
79f094546f56001254cbc8516449448b

SHA1
73bce9f6fe6ccc795edb69f40a5c382200fd177c

SHA256
6685704737d27589242d37c31b8c0fa7dbaee926696e9509214bdfaec446c920

SHA512
42432328f0b6991f5edb8c4a9f80615255bf038acb3a3af01e157740f3fe52e613d4ffe2f671b4e69fc1cff6f494d0f6200a97ee271afd2b5939b1cd1b58bc20

Download Submit
memory/3000-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/3000-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3052-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/3052-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3052-3-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download