ecb69a696cf38f35fd346b26aa5e3e61e79003faa88d05531594e4a33eb6cdf7

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11-03-2024 05:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-11_0ecbe379746f2418af37022d65f2e3a2_cryptolocker.exe
Size

126KB
MD5

0ecbe379746f2418af37022d65f2e3a2
SHA1

853f68050618b6346adb0f89a0671d53c7e7bb4b
SHA256

ecb69a696cf38f35fd346b26aa5e3e61e79003faa88d05531594e4a33eb6cdf7
SHA512

ac546a5f2f125190d32484485d690658818a182e645f7cd2c8539f30f682964df122d4bdc085900e22ff83ab4f764dfe10a956c2682e043b2e05e0497aeaf4e8
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpVA:vCA9OtEvwDpjy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-11_0ecbe379746f2418af37022d65f2e3a2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4720	misid.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 228 wrote to memory of 4720	228	2024-03-11_0ecbe379746f2418af37022d65f2e3a2_cryptolocker.exe	89
PID 228 wrote to memory of 4720	228	2024-03-11_0ecbe379746f2418af37022d65f2e3a2_cryptolocker.exe	89
PID 228 wrote to memory of 4720	228	2024-03-11_0ecbe379746f2418af37022d65f2e3a2_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-11_0ecbe379746f2418af37022d65f2e3a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_0ecbe379746f2418af37022d65f2e3a2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:228
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4720

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\misid.exe

Filesize
126KB

MD5
2cad027a7f702e6e83dca5f944f75bf1

SHA1
7b3e3ba7d7e5fe2b45f0fc9255535882c66040bd

SHA256
568d518603c9bbd13720f02d39403b23dd34cfa653f3f3ac84933988e9af76be

SHA512
39357a77f617aff9fa657c9a04642a56b6222c9db26b814861af5b3100ed59fe1bc3d9f497c09870bc3d925a5dab794f31c14e54bead1976631c82ae9b12ef9d

Download Submit
memory/228-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/228-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/228-2-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/4720-18-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4720-17-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download