5de989e4b10b961dc0ba2ba82fc15d634d134fb76ad6a51b8c89585cd63ea9a9

Analysis

max time kernel
151s
max time network
161s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 20:45

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General

Target

2024-02-01_8bcdb9ca38f516fc3eb7ef55b1e5c493_cryptolocker.exe
Size

46KB
MD5

8bcdb9ca38f516fc3eb7ef55b1e5c493
SHA1

03fb36826449f4fa9021271071ecdef8aa741cd0
SHA256

5de989e4b10b961dc0ba2ba82fc15d634d134fb76ad6a51b8c89585cd63ea9a9
SHA512

ec24850f18b6a7b19f0c6e6412dd9c48de930148fd600ca0b6b0e4add6c1c394b63b40c0b89e3b92bbcb21ca8d7c5f72e7d701ace013c241575b95b62683c98d
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dd3D:bgGYcA/53GAA6y37Q6dd3D

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000142e4-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2716	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1280	2024-02-01_8bcdb9ca38f516fc3eb7ef55b1e5c493_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 1280 wrote to memory of 2716	1280	2024-02-01_8bcdb9ca38f516fc3eb7ef55b1e5c493_cryptolocker.exe	28
PID 1280 wrote to memory of 2716	1280	2024-02-01_8bcdb9ca38f516fc3eb7ef55b1e5c493_cryptolocker.exe	28
PID 1280 wrote to memory of 2716	1280	2024-02-01_8bcdb9ca38f516fc3eb7ef55b1e5c493_cryptolocker.exe	28
PID 1280 wrote to memory of 2716	1280	2024-02-01_8bcdb9ca38f516fc3eb7ef55b1e5c493_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-01_8bcdb9ca38f516fc3eb7ef55b1e5c493_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_8bcdb9ca38f516fc3eb7ef55b1e5c493_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1280
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2716

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
47KB

MD5
a15ec254c1ae1e3b9ce12e28355ea883

SHA1
426285e3c8f7c905ebdb310778e5834b0ea4ba33

SHA256
c00f473fe82ecc8b435c709e2af2c5347be3778011e8a8916a33ffd490ab732f

SHA512
6ba5893d58b3bb954e4a9d2993dfadacbbbf21917279cb5fe986889bbef318c8918a258dac24ded857d564bbd91c33d48dcf0931da457e22d15964b1c1d5d07e

Download Submit
memory/1280-0-0x0000000001C80000-0x0000000001C86000-memory.dmp

Filesize
24KB

Download
memory/1280-1-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1280-8-0x0000000001C80000-0x0000000001C86000-memory.dmp

Filesize
24KB

Download
memory/2716-15-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2716-21-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download