b5f54d1bf8406fca2a2a8e70182f31ea0c2183eaeb92c7c2968ed2f8ec828fc0

Analysis

max time kernel
148s
max time network
152s
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 12:15

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General

Target

2024-09-05_c4c49c0f051730a451e417efdb82d397_cryptolocker.exe
Size

49KB
MD5

c4c49c0f051730a451e417efdb82d397
SHA1

3e7b0a0f77ee06625a78eb10052fa4bfb3a9ec59
SHA256

b5f54d1bf8406fca2a2a8e70182f31ea0c2183eaeb92c7c2968ed2f8ec828fc0
SHA512

af4629b59194df9fb292f3edd6610bc1e5d3ab505aa94e430e79df066441cdf37a8f8ad81962ff6791e37c6744f02a88ce35a7273259b5a9d7c375ccf4d6fd8b
SSDEEP

768:26LsoVEeegiZPvEhHSP+gDdQtOOtEvwDpjtMLZdzuqpXsiE8Wq/DpkITe:26Q0ElP6G+gBQMOtEvwDpjgWMl7Te

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	2024-09-05_c4c49c0f051730a451e417efdb82d397_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	asih.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_c4c49c0f051730a451e417efdb82d397_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 2856	3376	2024-09-05_c4c49c0f051730a451e417efdb82d397_cryptolocker.exe	85
PID 3376 wrote to memory of 2856	3376	2024-09-05_c4c49c0f051730a451e417efdb82d397_cryptolocker.exe	85
PID 3376 wrote to memory of 2856	3376	2024-09-05_c4c49c0f051730a451e417efdb82d397_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-05_c4c49c0f051730a451e417efdb82d397_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_c4c49c0f051730a451e417efdb82d397_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2856

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\asih.exe

Filesize
49KB

MD5
f2fb9b3e508bcefe538c530e65793e94

SHA1
b070027bed39bae0b657ac69fcb2d647a861f350

SHA256
0bc0e9366fd2b90f711ed5242c2943e5dc1f97e48ee28f8fe72121293f522cd9

SHA512
d6ee94a179bfaf625e88189c7a7937383c25a365fa994af18550d0565a87f1fc4006080041f55cbb26029e86b48a330ea9ad85992483a568452d63e130bc7490

Download Submit
memory/2856-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3376-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3376-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3376-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3376-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3376-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download