05cc8b8cf97e9887429344964ce61525de95e1880f5ad23a9cbede5017fc09e2

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 16:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe
Size

40KB
MD5

a56a482d6dc2228db3b9372d18fe6f65
SHA1

3c1a300a78ebb0c4d572efd510370a954f1c67dc
SHA256

05cc8b8cf97e9887429344964ce61525de95e1880f5ad23a9cbede5017fc09e2
SHA512

9342d3580047862c947c6c4f8a5476af5228e5a04efc5a57703e9b65d4200535156e48af5c95bc551b23230e980ef273d1200ba4330e5c619abfc06d11823ae2
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8POKG:bIDOw9a0Dwo3P1ojvUSDh4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321a-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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3184	lossy.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 3172 wrote to memory of 3184	3172	2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe	84
PID 3172 wrote to memory of 3184	3172	2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe	84
PID 3172 wrote to memory of 3184	3172	2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3172
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3184

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

Loading Replay Monitor...

Downloads

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

Filesize
40KB

MD5
c658f25b426dd64339617728d962b991

SHA1
9e293bbc5783d68482a5863621e75e7fab2b8271

SHA256
da1a19f2b8b6f219da91a1f291c84a85207cf5ca96044bb2c7817642bc0fb593

SHA512
90f79681b83422259f982e2e3736c9f2b144b3b226d57f9aee472ab3bfa56a8b3e08b23e1cbe9dc42e892db033576115374581cbe05d1948876a4dff2b0bb7e5

Download Submit
memory/3172-0-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/3172-1-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/3172-2-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/3184-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3184-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download