f7ca6a4cc4f31cf0a2bce1e2c3fc81eeb3ed11b29143c75d61a3702169275f9c

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
25-09-2024 03:43

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General

Target

2024-09-25_b1b5407112625b3e70b4daed8ac43073_cryptolocker.exe
Size

44KB
MD5

b1b5407112625b3e70b4daed8ac43073
SHA1

5e4b420d92b95dcdc3b6fbaa27d4c8277aa44444
SHA256

f7ca6a4cc4f31cf0a2bce1e2c3fc81eeb3ed11b29143c75d61a3702169275f9c
SHA512

a57c91cdb050f00fa398638220e027b6d0ecb0669e22c574a5018d038d7ef25d720a4812602c0b45f235c4a1f44185f522aeb5ac420fa09110495035f179c748
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkL7vF1TS:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLS

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	2024-09-25_b1b5407112625b3e70b4daed8ac43073_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4844	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	2024-09-25_b1b5407112625b3e70b4daed8ac43073_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 4860 wrote to memory of 4844	4860	2024-09-25_b1b5407112625b3e70b4daed8ac43073_cryptolocker.exe	82
PID 4860 wrote to memory of 4844	4860	2024-09-25_b1b5407112625b3e70b4daed8ac43073_cryptolocker.exe	82
PID 4860 wrote to memory of 4844	4860	2024-09-25_b1b5407112625b3e70b4daed8ac43073_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-25_b1b5407112625b3e70b4daed8ac43073_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_b1b5407112625b3e70b4daed8ac43073_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4860
- 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:4844

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
44KB

MD5
1ca58fc17b069ff8434c7470eca56525

SHA1
d2478fd92a34f3185a8e38c269e28ec9b9692486

SHA256
710f6732b04dd87e2afbc6192738a23193f6e51ef983a7a862186d06d69187fe

SHA512
9960818557394f5e688f3561d17c77a93829928f02f2888d0331cc85b2fda1b2e00a0de0ca464e3542471961a0df01957bc39ce4b36c84c74edaf9218a0a2479

Download Submit
memory/4844-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4844-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4844-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4860-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4860-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4860-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4860-3-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/4860-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download