4fa5d9238e7a94dc17ecf6bf78123a6a8716c2e6e2568820e18004157e1640e8

Analysis

max time kernel
126s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 02:53

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General

Target

2024-06-09_87f3875bd4ae2b90a6888c77db298e58_cryptolocker.exe
Size

70KB
MD5

87f3875bd4ae2b90a6888c77db298e58
SHA1

bad8ac7e10a2d29c9f55e87757935d3dd1b5ad0f
SHA256

4fa5d9238e7a94dc17ecf6bf78123a6a8716c2e6e2568820e18004157e1640e8
SHA512

53d261d53b0953f4d65516753b3511095826ee28c386891f042e9d4a06ee18b9d25c3def01c359e83fd62de54f40567e47074b6c6ba91e0c24d9d6c829da9f3a
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/R+:vj+jsMQMOtEvwDpj5HZYTjipvF24UD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000144e0-21.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000144e0-21.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2936	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2592	2024-06-09_87f3875bd4ae2b90a6888c77db298e58_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 2592 wrote to memory of 2936	2592	2024-06-09_87f3875bd4ae2b90a6888c77db298e58_cryptolocker.exe	28
PID 2592 wrote to memory of 2936	2592	2024-06-09_87f3875bd4ae2b90a6888c77db298e58_cryptolocker.exe	28
PID 2592 wrote to memory of 2936	2592	2024-06-09_87f3875bd4ae2b90a6888c77db298e58_cryptolocker.exe	28
PID 2592 wrote to memory of 2936	2592	2024-06-09_87f3875bd4ae2b90a6888c77db298e58_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-09_87f3875bd4ae2b90a6888c77db298e58_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_87f3875bd4ae2b90a6888c77db298e58_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2936

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
70KB

MD5
a420403baeac94e5702440f9ef4cfaec

SHA1
a24a45afe5b79c3796e27f2e34aae5e71ae26d1b

SHA256
a6d75fb368c05a7aded88c307544b950daa34a20a55678d31f4343845a69c421

SHA512
c68d648bef7d9b23b8de6548dd77283349738b9387ca8d1df17b707eafc9f7ccc665266781e6929600bd069de63ec5927fa35764e91de87feb2cbc6750ea0b6e

Download Submit
memory/2592-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2592-1-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2592-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download