a318f530a4862c0b1e45dd01e8a5b5c682e80fa847533a2696157517c7cc734a

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:28

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General

Target

2024-09-19_9f4085aa4bc03e02443d3c15f2ecb37e_cryptolocker.exe
Size

43KB
MD5

9f4085aa4bc03e02443d3c15f2ecb37e
SHA1

369b676393c976e137006177ea3756beb8fde63d
SHA256

a318f530a4862c0b1e45dd01e8a5b5c682e80fa847533a2696157517c7cc734a
SHA512

e8f9761c315d0ed3b1e08ef31f66c0c4e8e73ebf1dd8716cb19ebacd4b0f7822b4855bfea07ed7b10efe27e013ad4ec14fb71db1fa4449f7b57066df045c1216
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjrO:bCDOw9aMDooc+vAqjK

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-09-19_9f4085aa4bc03e02443d3c15f2ecb37e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3104	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	2024-09-19_9f4085aa4bc03e02443d3c15f2ecb37e_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 4100 wrote to memory of 3104	4100	2024-09-19_9f4085aa4bc03e02443d3c15f2ecb37e_cryptolocker.exe	82
PID 4100 wrote to memory of 3104	4100	2024-09-19_9f4085aa4bc03e02443d3c15f2ecb37e_cryptolocker.exe	82
PID 4100 wrote to memory of 3104	4100	2024-09-19_9f4085aa4bc03e02443d3c15f2ecb37e_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_9f4085aa4bc03e02443d3c15f2ecb37e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_9f4085aa4bc03e02443d3c15f2ecb37e_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4100
- 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:3104

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
43KB

MD5
11e5a864afd574da17ec8a4a820d9871

SHA1
19a385474d307ba5b2393597e03eab0ada703d17

SHA256
92d6ec55f053a0875b3eef7d5b7733bc5953d115a4e71293b85108fad1bd86dc

SHA512
1bb7739c91c2fd34bcc22520abcf47ef2830a6aba24db6f5fa97c332a6a619b4aa25c421006fb5a0e1e1eb00fdde20f0878ea9c44d800226280feb643f8acba6

Download Submit
memory/3104-19-0x0000000001F00000-0x0000000001F06000-memory.dmp

Filesize
24KB

Download
memory/3104-20-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/3104-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4100-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4100-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4100-2-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4100-3-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/4100-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download