bc1c4ed1cbf100a65baa75e0aef95f7d9a993ac9ba3af735260430bfeb4c3a24

Analysis

max time kernel
8s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/01/2024, 05:54

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General

Target

2024-01-11_0e2420cd561ba2f9b561013241a358ba_cryptolocker.exe
Size

37KB
MD5

0e2420cd561ba2f9b561013241a358ba
SHA1

860fe27cfcabad6cbeed194d98f9bf9b9333b7fa
SHA256

bc1c4ed1cbf100a65baa75e0aef95f7d9a993ac9ba3af735260430bfeb4c3a24
SHA512

732dc89a5816698cef33323f2a9ee1f0e68be13ccb61c090e687f09082e675cbb525c016041fd4982b2dbe2b45468c10e7d48094bf8b7a6c5dc0bd174c7722f5
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zzzcYgUPSznHzl6AJvDSuYlS:b/yC4GyNM01GuQMNXw2PSjHPbSuYlS

Score

7^/10

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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	2024-01-11_0e2420cd561ba2f9b561013241a358ba_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4288	retln.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 4288	1712	2024-01-11_0e2420cd561ba2f9b561013241a358ba_cryptolocker.exe	90
PID 1712 wrote to memory of 4288	1712	2024-01-11_0e2420cd561ba2f9b561013241a358ba_cryptolocker.exe	90
PID 1712 wrote to memory of 4288	1712	2024-01-11_0e2420cd561ba2f9b561013241a358ba_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-01-11_0e2420cd561ba2f9b561013241a358ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-11_0e2420cd561ba2f9b561013241a358ba_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\retln.exe
  "C:\Users\Admin\AppData\Local\Temp\retln.exe"
  2⤵
  - Executes dropped EXE
  PID:4288

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
37KB

MD5
1baccd0fb3f4640b9a3bd2fde58268b1

SHA1
bab2985f0e1bc2893efc91c11b12bb410f7b528e

SHA256
24933e0fe37f1ba5cdfef928c65dad7874d0ae004f4b61e5111975f71ec2c557

SHA512
81094737d54d620431d6605bfbe3bd4ac97b174806d723acbe262d39a60b5736490add13c254abefa8193b217fa7f172e258cc32daf938b6116c9609038f8a71

Download Submit
memory/1712-0-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/1712-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1712-1-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/4288-25-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download