42635423288eb0e59efb0d9820494c811b2c913fd596c18703165e5e3217d4ef

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2024 01:16

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General

Target

2024-09-07_75bf4a1c107a60683338ba63e4c77ebb_cryptolocker.exe
Size

26KB
MD5

75bf4a1c107a60683338ba63e4c77ebb
SHA1

32a54e3dcafae4fc125862267170a6d44b7ca271
SHA256

42635423288eb0e59efb0d9820494c811b2c913fd596c18703165e5e3217d4ef
SHA512

bacb64a12a5a46ea4c1131fefef88d1bd17f5c6d1e67ee7622dfda3695506fc98cf9ffa38181cb25e30311cdd5585844054717bc2dfbcc499741e1f91b07e0b8
SSDEEP

384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/HNbo:bIDOw9UiaCHfjnE0SK

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	2024-09-07_75bf4a1c107a60683338ba63e4c77ebb_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4536	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	2024-09-07_75bf4a1c107a60683338ba63e4c77ebb_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 1896 wrote to memory of 4536	1896	2024-09-07_75bf4a1c107a60683338ba63e4c77ebb_cryptolocker.exe	83
PID 1896 wrote to memory of 4536	1896	2024-09-07_75bf4a1c107a60683338ba63e4c77ebb_cryptolocker.exe	83
PID 1896 wrote to memory of 4536	1896	2024-09-07_75bf4a1c107a60683338ba63e4c77ebb_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-09-07_75bf4a1c107a60683338ba63e4c77ebb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_75bf4a1c107a60683338ba63e4c77ebb_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1896
- 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:4536

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
26KB

MD5
d7cc82e9142045764188b1535d6d98cc

SHA1
47a6954ad5a0a5b30901019bf6cacc88a89bd394

SHA256
c4ce55f85e4e483a2857fecd41f3ce0ffe171f372bc5da8cbb2437adaf617fac

SHA512
993cd2650485cff0d34b11a8e476c67fa60775410c1d01786c28a3e3eae11f324c418cfb04bb7003a0c1ec6a45b33cd4469ad8404292f0a260a17087ed041cd3

Download Submit
memory/1896-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1896-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1896-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download