4331ea05b047ac180f979bb71a9bcc26c8742978fd4a17e7fd0fe66fafc05c42

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 05:36

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General

Target

2024-04-30_c4faa8b2083798be3f08151f27e8da9e_cryptolocker.exe
Size

67KB
MD5

c4faa8b2083798be3f08151f27e8da9e
SHA1

9c2ee4b89cab68ffafcb417b9a6448efd5250c9a
SHA256

4331ea05b047ac180f979bb71a9bcc26c8742978fd4a17e7fd0fe66fafc05c42
SHA512

4197b7eb6041b3908c8fa40f2942bbeae4dad7052d2151f5158a813ebf64611df464cbab07226c9f9e044a7cc2f2162de55c58c2dbbe307c731eb27595df6290
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4wYPsED3VK2+ZtyOjgO4r9vFAg2rqk63Yg7:vj+jsMQMOtEvwDpj5HwYYTjipvF2hli

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000122b8-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000122b8-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1680	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1632	2024-04-30_c4faa8b2083798be3f08151f27e8da9e_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 1632 wrote to memory of 1680	1632	2024-04-30_c4faa8b2083798be3f08151f27e8da9e_cryptolocker.exe	28
PID 1632 wrote to memory of 1680	1632	2024-04-30_c4faa8b2083798be3f08151f27e8da9e_cryptolocker.exe	28
PID 1632 wrote to memory of 1680	1632	2024-04-30_c4faa8b2083798be3f08151f27e8da9e_cryptolocker.exe	28
PID 1632 wrote to memory of 1680	1632	2024-04-30_c4faa8b2083798be3f08151f27e8da9e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_c4faa8b2083798be3f08151f27e8da9e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_c4faa8b2083798be3f08151f27e8da9e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1680

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
68KB

MD5
2bed230e0a11c558966420a2613b77d9

SHA1
26546b2703a253a14782478849f170ff870a37c9

SHA256
11fe75b151b0348d779f703fd98f92c552f774dd70e91e89245be4c86aaac734

SHA512
807dc7138d6c12968217a614b3c9fb155aaa03002eca14e61e6d6684838624276551ef0f5a1e100511aa849f3c73a05886b1228d6d7012a85e307c06540a2a99

Download Submit
memory/1632-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1632-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1632-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1680-15-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1680-22-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download