b6d1620c40da6478ae185b7cf1b84229433dff47eb3fbf73208bbcde2b1f64be

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/09/2024, 10:45

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General

Target

2024-09-05_426db74c60af8e78f6e9edcfaf03e21f_cryptolocker.exe
Size

44KB
MD5

426db74c60af8e78f6e9edcfaf03e21f
SHA1

94cfc9773038fdfb3795dd540c910a617cb19771
SHA256

b6d1620c40da6478ae185b7cf1b84229433dff47eb3fbf73208bbcde2b1f64be
SHA512

60f9bc09e90e642871883b411a69859c5af4ec9f067de739303dd851d36ec183cf8d16faabe418a00950b21f19129cf08378a4ccfb8ff5ad327af15008f7cce8
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjr+:bCDOw9aMDooc+vAqj6

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-09-05_426db74c60af8e78f6e9edcfaf03e21f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3688	lossy.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-05_426db74c60af8e78f6e9edcfaf03e21f_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 3688	2564	2024-09-05_426db74c60af8e78f6e9edcfaf03e21f_cryptolocker.exe	85
PID 2564 wrote to memory of 3688	2564	2024-09-05_426db74c60af8e78f6e9edcfaf03e21f_cryptolocker.exe	85
PID 2564 wrote to memory of 3688	2564	2024-09-05_426db74c60af8e78f6e9edcfaf03e21f_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-05_426db74c60af8e78f6e9edcfaf03e21f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_426db74c60af8e78f6e9edcfaf03e21f_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3688

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
44KB

MD5
815e0cf17527f84e1b3836a556d6fac8

SHA1
835b89bf28789697abf208c5dc4aa6399068d56c

SHA256
4159b6fd49d4e7d21a77fc04dbe232213b0e4c67f5fb20836c41a5886f891adb

SHA512
aced8073033c07af7b833b47d449ea16a02d201390201b33923a26d0b25aebea0c45e2ce97272b9824635e0df524ac53b00c845206dba33189d6a96530c31132

Download Submit
memory/2564-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2564-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2564-2-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2564-3-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/2564-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3688-19-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/3688-20-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3688-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download