ba6bf4036371ead070125b3aefd69d5c2ad32a8f2372f16fffea1c9101378bcd

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/09/2024, 02:41

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General

Target

2024-09-12_6c30488fa856606f293daf35b17d59ef_cryptolocker.exe
Size

21KB
MD5

6c30488fa856606f293daf35b17d59ef
SHA1

7a284e0166c501b03dec532054af056590ae676e
SHA256

ba6bf4036371ead070125b3aefd69d5c2ad32a8f2372f16fffea1c9101378bcd
SHA512

aa93df0bba1af802a81ca5923724586c94df0adfd047857e938c972f122b1fe56fa7d3b26f5d3151921ae1843352e728d5363d04690cca6311d4433be30c6719
SSDEEP

384:M/VfvRZsvqlbLiLPnH3KYgjffU01cRYpi/zzHX:afvoilb2jaYgYRVXHX

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	2024-09-12_6c30488fa856606f293daf35b17d59ef_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4172	retln.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	2024-09-12_6c30488fa856606f293daf35b17d59ef_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	retln.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 4172	1968	2024-09-12_6c30488fa856606f293daf35b17d59ef_cryptolocker.exe	85
PID 1968 wrote to memory of 4172	1968	2024-09-12_6c30488fa856606f293daf35b17d59ef_cryptolocker.exe	85
PID 1968 wrote to memory of 4172	1968	2024-09-12_6c30488fa856606f293daf35b17d59ef_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-12_6c30488fa856606f293daf35b17d59ef_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_6c30488fa856606f293daf35b17d59ef_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\retln.exe
  "C:\Users\Admin\AppData\Local\Temp\retln.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4172

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\retln.exe

Filesize
21KB

MD5
739a3455bf5e351bab57de57e1706852

SHA1
04bff76c5b4b4c314b894f6a067feb427427f951

SHA256
0c70bf3c02e1515ad88540ef031a5f67796c2bc14b29f1fab153974d6d1b498e

SHA512
cc0631c0d4c82ae1a3487e7ce8ccb625d5ded1711b29d6bc102e0c607eb04c7d6430e4d6a73f8b55d19312c6c14faae0deef4e3307785a0e551f44d775e2d483

Download Submit
memory/1968-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/1968-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/1968-2-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/1968-3-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4172-25-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download