947ebb37368f999a71397be1e51f748433224f58a70303220826cdca5d35a87d

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
15-05-2024 06:26

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General

Target

2024-05-15_a8b6b7247cd01d6ef0b1e526f5975761_cryptolocker.exe
Size

86KB
MD5

a8b6b7247cd01d6ef0b1e526f5975761
SHA1

0b0b932a800b08d90ac0ba8654728abd154e7bf0
SHA256

947ebb37368f999a71397be1e51f748433224f58a70303220826cdca5d35a87d
SHA512

ce650666af2c81baffffa000018754299177a034e2cb8b2a959d6c5f116b2b4e57540e1d0d05f1714e857895aab273cf7ea9c0134c15f511b212e67440884342
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNBy:vCjsIOtEvwDpj5H9YvQd2K

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012334-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012334-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2660	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1688	2024-05-15_a8b6b7247cd01d6ef0b1e526f5975761_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 1688 wrote to memory of 2660	1688	2024-05-15_a8b6b7247cd01d6ef0b1e526f5975761_cryptolocker.exe	28
PID 1688 wrote to memory of 2660	1688	2024-05-15_a8b6b7247cd01d6ef0b1e526f5975761_cryptolocker.exe	28
PID 1688 wrote to memory of 2660	1688	2024-05-15_a8b6b7247cd01d6ef0b1e526f5975761_cryptolocker.exe	28
PID 1688 wrote to memory of 2660	1688	2024-05-15_a8b6b7247cd01d6ef0b1e526f5975761_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-15_a8b6b7247cd01d6ef0b1e526f5975761_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_a8b6b7247cd01d6ef0b1e526f5975761_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2660

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
86KB

MD5
b80a83d2a42802d6c23f3e5272548375

SHA1
15f899684499f94b8c00513feb7b3a816b417a71

SHA256
2f09b7a956a824a810df6de8ef3accf9f965543ccd947c980fcdcd02490c5514

SHA512
483427153340ae71b58748125cf491a8db4fad6b631ec90a6840c9e0209e0d9fc8c40da569caebd8980da9a492cca3534285fc3298369675001ab4702c520b0a

Download Submit
memory/1688-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1688-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1688-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2660-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download