114044e113112970bd6fd1cb5033575ffad9c889126b17192104afbe7ad64f25

Analysis

max time kernel
150s
max time network
155s
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, 00:35

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General

Target

2024-03-15_58ff1fb75146ff4367401da2989cc966_cryptolocker.exe
Size

48KB
MD5

58ff1fb75146ff4367401da2989cc966
SHA1

9974eeac7d40cf523dfc6ae0ac33a937ba8ef460
SHA256

114044e113112970bd6fd1cb5033575ffad9c889126b17192104afbe7ad64f25
SHA512

0e95a122fe55fbb8b0d7ee6be813f19a8ef2d6f9515163acf8432f4282fcec1bb56487159ad0419180410bdf2d15b45436b51d5a1e384ca46ce7ae2746415c7c
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvvhN:bgGYcA/53GAA6y37nbBN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023225-12.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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	2024-03-15_58ff1fb75146ff4367401da2989cc966_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3824	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 2372 wrote to memory of 3824	2372	2024-03-15_58ff1fb75146ff4367401da2989cc966_cryptolocker.exe	91
PID 2372 wrote to memory of 3824	2372	2024-03-15_58ff1fb75146ff4367401da2989cc966_cryptolocker.exe	91
PID 2372 wrote to memory of 3824	2372	2024-03-15_58ff1fb75146ff4367401da2989cc966_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-15_58ff1fb75146ff4367401da2989cc966_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_58ff1fb75146ff4367401da2989cc966_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3824

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
48KB

MD5
f4db7efe69ae376b203a1fa08a1f7244

SHA1
c3fd8275fe5b76011f4e5a8bf851c217528347ef

SHA256
ddf354c6dfc6f1b1ba8099a09faa8123a4702317bb080c8fc597277f0af79c7c

SHA512
8c215b8017cf6fa6d449d51adc27c380eb3f8b2833092160286a3c5765a737731808f14a69846b01f9a28116c3754dcef2583de4a800fc52ab910f171420efef

Download Submit
memory/2372-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2372-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2372-2-0x00000000023C0000-0x00000000023C6000-memory.dmp

Filesize
24KB

Download
memory/3824-18-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/3824-17-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download