d3e6f23cc701a2a587fa610fb000a38dc7f48e9809536b19177d6936543adcb4

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
17-02-2024 22:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-17_17faf6f5c3939c9d8aa966ae7095227e_cryptolocker.exe
Size

49KB
MD5

17faf6f5c3939c9d8aa966ae7095227e
SHA1

d2b6d61957a795437a7b01ae54e8211429dba674
SHA256

d3e6f23cc701a2a587fa610fb000a38dc7f48e9809536b19177d6936543adcb4
SHA512

6957b39d1a938f246d53aeafaf8ee7d9769c917728da5b4716ca6e093e0c39f47f3127bcefa2ebace84bcd320f929b4004df58f7bee8fa2f1d2c25e485f4a6dc
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxtn:X6QFElP6n+gJBMOtEvwDpjBtExV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023207-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023207-12.dat	CryptoLocker_set1

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-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	2024-02-17_17faf6f5c3939c9d8aa966ae7095227e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	asih.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 3864 wrote to memory of 2852	3864	2024-02-17_17faf6f5c3939c9d8aa966ae7095227e_cryptolocker.exe	83
PID 3864 wrote to memory of 2852	3864	2024-02-17_17faf6f5c3939c9d8aa966ae7095227e_cryptolocker.exe	83
PID 3864 wrote to memory of 2852	3864	2024-02-17_17faf6f5c3939c9d8aa966ae7095227e_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-17_17faf6f5c3939c9d8aa966ae7095227e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_17faf6f5c3939c9d8aa966ae7095227e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3864
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2852

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\asih.exe

Filesize
49KB

MD5
d90a1f6d9ccca0efd4b465f8f17038a6

SHA1
ca895441ccb9d4bf59e085cfd223d451346163af

SHA256
e63e552275d89e21069f888c1058e8e3d2e1f29af9a86b4228656d76c01fbab3

SHA512
4c161a7c4fdfedf9185543b59834e5d5f7e576c855c4a427a3d86ab55f37a96377db7e6d800df8d500f8831fbc1d8a006045515131a2f58605fdb407131919be

Download Submit
memory/2852-17-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/2852-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3864-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3864-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3864-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download