4e1f98580fa20f5170e3677a9872d2c0984e4805caea828f04fedca1234c2536

Analysis

max time kernel
148s
max time network
151s
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 05:28

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General

Target

2024-09-19_51d5f8f7b4ce2c029b010029c2a06b15_cryptolocker.exe
Size

46KB
MD5

51d5f8f7b4ce2c029b010029c2a06b15
SHA1

453b16e4b91696b6144e4abd71d4842a77e19e0a
SHA256

4e1f98580fa20f5170e3677a9872d2c0984e4805caea828f04fedca1234c2536
SHA512

88b4c99f37176fa6c12ef1767b045e04df1b07fd3129a80143af1167bc004a84bcb5d60c49cc746f748575aeb2f932b58f394435500d912fdbf536257fe00dc2
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsJg:V6QFElP6n+gMQMOtEvwDpjyaYaFAh39

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	2024-09-19_51d5f8f7b4ce2c029b010029c2a06b15_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3408	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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-19_51d5f8f7b4ce2c029b010029c2a06b15_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4432 wrote to memory of 3408	4432	2024-09-19_51d5f8f7b4ce2c029b010029c2a06b15_cryptolocker.exe	82
PID 4432 wrote to memory of 3408	4432	2024-09-19_51d5f8f7b4ce2c029b010029c2a06b15_cryptolocker.exe	82
PID 4432 wrote to memory of 3408	4432	2024-09-19_51d5f8f7b4ce2c029b010029c2a06b15_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_51d5f8f7b4ce2c029b010029c2a06b15_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_51d5f8f7b4ce2c029b010029c2a06b15_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4432
- 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:3408

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
47KB

MD5
d3b2cdc039f76f010c8b3f3433b93f17

SHA1
8b142cd6cc86761d1510818a236bb3572904ff68

SHA256
0ea508c2dd89e75fe3d83907fe7d2b7b8a1215346e197d2a0da11142bee719d5

SHA512
fd270dc4c9d3155bd96e7dc321a2a8f1a079d2950c2f530245d678f2f71416b3d30ac36814ec6451112ada63cfb4cc36d8ffa3e66e38de901468858b0fce1510

Download Submit
memory/3408-17-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/3408-23-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4432-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4432-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4432-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download