e58295ed8d17e9224b5eee4b16728f393b1323fd2b6a81e89f2177dcf822fc95

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 19:01

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General

Target

2024052138ca58d67c15244f4e3806b65971c982cryptolocker.exe
Size

44KB
MD5

38ca58d67c15244f4e3806b65971c982
SHA1

8b818cc904699d43439106193bffcec2094e2cec
SHA256

e58295ed8d17e9224b5eee4b16728f393b1323fd2b6a81e89f2177dcf822fc95
SHA512

790bca46832970fc9b9f67e5d5dbcf96679d06761f699a02430e9de0394693d5fb807d5a25773b299fcb2af163fb5b796a3c4f469b7357397c1aebaec3ac3fd5
SSDEEP

768:b/yC4GyNM01GuQMNXw2PSjHPbSuYlW8PA3:b/pYayGig5HjS3NPA3

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

Processes:

2024052138ca58d67c15244f4e3806b65971c982cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024052138ca58d67c15244f4e3806b65971c982cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

retln.exe

pid process

1560 retln.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1560	retln.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024052138ca58d67c15244f4e3806b65971c982cryptolocker.exe

description	pid	process	target process
PID 3552 wrote to memory of 1560	3552	2024052138ca58d67c15244f4e3806b65971c982cryptolocker.exe	retln.exe
PID 3552 wrote to memory of 1560	3552	2024052138ca58d67c15244f4e3806b65971c982cryptolocker.exe	retln.exe
PID 3552 wrote to memory of 1560	3552	2024052138ca58d67c15244f4e3806b65971c982cryptolocker.exe	retln.exe

C:\Users\Admin\AppData\Local\Temp\2024052138ca58d67c15244f4e3806b65971c982cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024052138ca58d67c15244f4e3806b65971c982cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3552
- C:\Users\Admin\AppData\Local\Temp\retln.exe
  "C:\Users\Admin\AppData\Local\Temp\retln.exe"
  2⤵
  - Executes dropped EXE
  PID:1560

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
44KB

MD5
a6afe2d086cf8a11dfad1a14b16db812

SHA1
5645480334aa757ea4dbeb25f24b3c83b71a8c5d

SHA256
b7efa0c77eed87e2afec2f422e428a706a228ac44d1151d0d0ef3aded1d9c91a

SHA512
9c44093dda02cfc774738c388a251009d633a376173b45f088cc883d39c5fda84a17c8e303e268b1b8d0b6ec57db55f31a9685af9dd7edb632f61f37b2a7476b

Download Submit
memory/1560-25-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/3552-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3552-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3552-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download