483ff53cc00c6235f8b83e319990075fc0865419c19c5eebd47c911f89e8b6a8

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 15:37

Target

2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe
Size

39KB
MD5

7276bc3600231a300f2adba942672b79
SHA1

a4e015f479691a8ebdc01c430583f29c0358cb4b
SHA256

483ff53cc00c6235f8b83e319990075fc0865419c19c5eebd47c911f89e8b6a8
SHA512

6a52aad1c931b6bb7430cc5d3d565d84a53c3f06a18a4a609726954120e50c65e05d17810dea32780ed8c21ea3cf7975d3efb1d61f5eb252d1b5247832933b9b
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+rc5vrp:bgGYcA/53GADw8Clrc7

Score

9^/10

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hasfj.exe	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

Processes:

hasfj.exe

pid process

1960 hasfj.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe

pid process

1860 2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1960	hasfj.exe

pid	process
1860	2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe

description	pid	process	target process
PID 1860 wrote to memory of 1960	1860	2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe	hasfj.exe
PID 1860 wrote to memory of 1960	1860	2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe	hasfj.exe
PID 1860 wrote to memory of 1960	1860	2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe	hasfj.exe
PID 1860 wrote to memory of 1960	1860	2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe	hasfj.exe

C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
2⤵
- Executes dropped EXE
PID:1960

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\Users\Admin\AppData\Local\Temp\hasfj.exe
Filesize
39KB

MD5
c84c8eb182f9ef6ed99097cc356f4803

SHA1
926d86cf38a18014b330e1d1a509b6b2a49e2f6d

SHA256
c2dbc92d10e4900ccb46e6e8b0884402b618cc2946bc2c66d90666d00168a8ff

SHA512
54e49c220619d1a76f8100d405309ce0da5eb43a1f8005bb1288f9be9577ac02c0ab7b439cc7f426fc334ac8e02dea179b4a70a28edd305159e6d4a97d64e6bb

Download Submit
memory/1860-0-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download
memory/1860-1-0x0000000001BD0000-0x0000000001BD6000-memory.dmp

Filesize
24KB

Download
memory/1860-8-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download
memory/1960-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/1960-22-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download