c9193cfe9dcff83389d63bceeb62436a7b9e2910e43efb9cc6f4a74a5d7ea2af

Analysis

max time kernel
153s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2024 05:55

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General

Target

2024-01-09_642cb2250d2c83eedf70d17532a29194_cryptolocker.exe
Size

33KB
MD5

642cb2250d2c83eedf70d17532a29194
SHA1

efac32a2a1bb011632161e6f94399ec62eff1d29
SHA256

c9193cfe9dcff83389d63bceeb62436a7b9e2910e43efb9cc6f4a74a5d7ea2af
SHA512

9fc6f07f1970aee66311ae94a2403eec88457533acce3fc50d65dd021ce24c6058844f8293bb26b632b287afbdd26e9621d4d94765e3cf4c48c773b01d326c6c
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zzzcYgUPSznStEEr9VE/cog:b/yC4GyNM01GuQMNXw2PSjSKEBVE/c/

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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-01-09_642cb2250d2c83eedf70d17532a29194_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3680	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 3872 wrote to memory of 3680	3872	2024-01-09_642cb2250d2c83eedf70d17532a29194_cryptolocker.exe	91
PID 3872 wrote to memory of 3680	3872	2024-01-09_642cb2250d2c83eedf70d17532a29194_cryptolocker.exe	91
PID 3872 wrote to memory of 3680	3872	2024-01-09_642cb2250d2c83eedf70d17532a29194_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-01-09_642cb2250d2c83eedf70d17532a29194_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-09_642cb2250d2c83eedf70d17532a29194_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3872
- C:\Users\Admin\AppData\Local\Temp\retln.exe
  "C:\Users\Admin\AppData\Local\Temp\retln.exe"
  2⤵
  - Executes dropped EXE
  PID:3680

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
34KB

MD5
f12ea32a0df3bf812021b72e0dff24c1

SHA1
607728a54f3c1683781e1554f09fe0ceb78fd5ac

SHA256
abf153c94fdedd7859a0925f231946239ee0f3d40b08e7e04dfa25818895c723

SHA512
836242086d6033174ec0ea5b7fba60368f9f799dfb339cf9777d78b16ddd3da1df5109c9e61c58a56aeee7b669cfdf219ec644c3d1f246b97806c8e37870c875

Download Submit
memory/3680-21-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/3872-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/3872-1-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/3872-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download