ccfd14bbd52991826a0dcc89e0b57fcba533243e784e8ac7ee61c7f70d5430c1

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-03-2024 06:50

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General

Target

2024-03-28_b91efe6fef03f26073aa7480fbbdd35e_cryptolocker.exe
Size

52KB
MD5

b91efe6fef03f26073aa7480fbbdd35e
SHA1

ad0f1283d5250c43cb658c593717ae07f4128bf7
SHA256

ccfd14bbd52991826a0dcc89e0b57fcba533243e784e8ac7ee61c7f70d5430c1
SHA512

0f29c7db049952de2c9a9d811eda5fe962a42c95d873b6d326b53bae970ea93819f46ae427f0cdb3b31874e1936ff0756b83640bd9bdac69496a7835e47ddc76
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdO5SkT:ZVxkGOtEvwDpjcP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012241-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2120	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2020	2024-03-28_b91efe6fef03f26073aa7480fbbdd35e_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 2020 wrote to memory of 2120	2020	2024-03-28_b91efe6fef03f26073aa7480fbbdd35e_cryptolocker.exe	28
PID 2020 wrote to memory of 2120	2020	2024-03-28_b91efe6fef03f26073aa7480fbbdd35e_cryptolocker.exe	28
PID 2020 wrote to memory of 2120	2020	2024-03-28_b91efe6fef03f26073aa7480fbbdd35e_cryptolocker.exe	28
PID 2020 wrote to memory of 2120	2020	2024-03-28_b91efe6fef03f26073aa7480fbbdd35e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_b91efe6fef03f26073aa7480fbbdd35e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_b91efe6fef03f26073aa7480fbbdd35e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2120

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
52KB

MD5
67491b693f740356ee20be8b1e271f9d

SHA1
702d8cbf7d4f61b4576012c2a03089243b28eff9

SHA256
499e14fa870aa28d5db9d9eae246e97f6dd155d37caf45bd22a8111a0a1512fd

SHA512
a603bda8c3886983697ba56b64e4c8e53aea8c3f5525d3182e52ab25a84ebc877b625e7ea70e643e4b05e05a01ef278d4c90fedcd443ef4b8d01cf2d1333fbb3

Download Submit
memory/2020-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2020-0-0x0000000000240000-0x0000000000243000-memory.dmp

Filesize
12KB

Download
memory/2020-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2020-4-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2120-15-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download
memory/2120-17-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2120-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2120-25-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download