c522b455bba6619b6d62d22de2cb014e564560d56b316168f8d1f4e7eba173df

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26/08/2024, 06:53

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General

Target

2024-08-26_8b42a90743b40f4938232ecbffa90772_cryptolocker.exe
Size

48KB
MD5

8b42a90743b40f4938232ecbffa90772
SHA1

a3230e3656fa96308eb8dea2e627b4da73287e06
SHA256

c522b455bba6619b6d62d22de2cb014e564560d56b316168f8d1f4e7eba173df
SHA512

3e086113b9d87fa491771288f486afac1153fce7a5a7bf671f6d2039343d0b952687d29fff8f0acb2ab77f935a03d1865c247a46c9554cc2b229a5c81560dede
SSDEEP

768:26LsoVEeegiZPvEhHSP+gDdQtOOtEvwDpjtMLZdzuqpXsiE8Wq/DpkITW:26Q0ElP6G+gBQMOtEvwDpjgWMl7TW

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-08-26_8b42a90743b40f4938232ecbffa90772_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3968	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	2024-08-26_8b42a90743b40f4938232ecbffa90772_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 2016 wrote to memory of 3968	2016	2024-08-26_8b42a90743b40f4938232ecbffa90772_cryptolocker.exe	84
PID 2016 wrote to memory of 3968	2016	2024-08-26_8b42a90743b40f4938232ecbffa90772_cryptolocker.exe	84
PID 2016 wrote to memory of 3968	2016	2024-08-26_8b42a90743b40f4938232ecbffa90772_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-08-26_8b42a90743b40f4938232ecbffa90772_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-26_8b42a90743b40f4938232ecbffa90772_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- 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:3968

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
48KB

MD5
a7c12a021a5eb80895a2eedafad355f7

SHA1
79ca8c647976178f420da6daf6e40b5865e74f86

SHA256
59d460edcd9694f79c11746281145b21612626cba814a77441fdc9092af084d6

SHA512
3e81bb104a1b74d95c76a36309eeaef748d969077e6d1ab5d99985aa498dd931c949b17f31bd10c839e586785c2be2958d0e80381c8438eb145dd339c554a185

Download Submit
memory/2016-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2016-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2016-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2016-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2016-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3968-25-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/3968-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3968-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download