c0cf591d0863d3bd736282324053e140892e2282469426a62976ea0c9adeee2e

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 19:50

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General

Target

2024-03-15_5c52d306d5f88f0ae42adc7e2213ba2d_cryptolocker.exe
Size

387KB
MD5

5c52d306d5f88f0ae42adc7e2213ba2d
SHA1

d59af0f12e4ce8386f69951269ec601a25beab83
SHA256

c0cf591d0863d3bd736282324053e140892e2282469426a62976ea0c9adeee2e
SHA512

f7d6d7e32339d8e41e30d533d26ab37026c315366075239eff5696931a454aff06a087c7b62f34a80c29f40888cecb687213a85e359d802a7c9cd451f0f7d23d
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX7:nnOflT/ZFIjBz3xjTxynGUOUhX7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002322e-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-15_5c52d306d5f88f0ae42adc7e2213ba2d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3732	hasfj.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 3732	4456	2024-03-15_5c52d306d5f88f0ae42adc7e2213ba2d_cryptolocker.exe	89
PID 4456 wrote to memory of 3732	4456	2024-03-15_5c52d306d5f88f0ae42adc7e2213ba2d_cryptolocker.exe	89
PID 4456 wrote to memory of 3732	4456	2024-03-15_5c52d306d5f88f0ae42adc7e2213ba2d_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-15_5c52d306d5f88f0ae42adc7e2213ba2d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_5c52d306d5f88f0ae42adc7e2213ba2d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
387KB

MD5
e7eee7318446540f12da9dc1fff4fd11

SHA1
baeef3a861b55f1694ee0275c55dbf067cf7f17c

SHA256
ad9af4002d3a10b92498d5de4ec9399d86aaa463554def73b2b8456aef10899a

SHA512
a794b504ffb0fefbdda3980babdf0078b312006db1a7b4d9a4a9c10f59a85e37a73a316c3ccd2150c169fe931abb4137476c9bd06f9471c6a4845cb99347dc6d

Download Submit
memory/3732-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3732-18-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4456-0-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/4456-1-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/4456-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download