f2b24d2dbf28e2773ec8f85c20db3af9acab854bb78fc61461ad5e7164fae005

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
23/04/2024, 00:55

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General

Target

2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe
Size

44KB
MD5

8be8e873910b1c0a9dac6f267fcbc057
SHA1

99ef8b4a025439a9864c3ff52a5546f9e26ff80e
SHA256

f2b24d2dbf28e2773ec8f85c20db3af9acab854bb78fc61461ad5e7164fae005
SHA512

dfdea49d20ec348a4e2b36a3ecac31db71f9a484549db732e71435ac00c5bb66a4ff9878499ab5501ffe46ce3af85973935a50f60b99b4c30850bb99bc0a305e
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+syQNN:bgGYcA/53GADw8Cl/w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001447e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1956	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1680	2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_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 1680 wrote to memory of 1956	1680	2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe	28
PID 1680 wrote to memory of 1956	1680	2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe	28
PID 1680 wrote to memory of 1956	1680	2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe	28
PID 1680 wrote to memory of 1956	1680	2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1956

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\hasfj.exe

Filesize
44KB

MD5
3566f1013139845d563a4c3795bd1550

SHA1
ab13d6161b3d48904affeba469e26c927b0f79bf

SHA256
f7bfda86d0ca4f32cd2c32f336317de43ef6de8a801281ce7ea52984288f64e5

SHA512
9420e2c5bfc9dad9b8ebb5a70c5b2ecacc1618e1bd9152b87591629597ef784e277b9c9dc337270744f41ad93d8ab441d7f1c6afafe6af79835815ce35463360

Download Submit
memory/1680-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1680-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1680-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1956-15-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/1956-22-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download