3fac1cc568556cb3a475bec847505491569949477765c581b74c0cb0b908a7c8

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 04:13

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General

Target

2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe
Size

40KB
MD5

90976c7ab5f71e51e60550eb5eb266e0
SHA1

12123301040bbc77694251d04a070a4b90104824
SHA256

3fac1cc568556cb3a475bec847505491569949477765c581b74c0cb0b908a7c8
SHA512

f2c6cc5e8113b3d9b84bdddb5724101bf7d2b705828398a9907f40e349a0da7178cc0820e3891deb8f1098d48408187f13b4b42acb7fbcf62981be4a317c9224
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQLJJEykrE:ZzFbxmLPWQMOtEvwDpjLeU3EbE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002340d-12.dat	CryptoLocker_rule2

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-1-5-21-776854024-226333264-2052258302-1000\Control Panel\International\Geo\Nation	2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4392	misid.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 4468 wrote to memory of 4392	4468	2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe	86
PID 4468 wrote to memory of 4392	4468	2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe	86
PID 4468 wrote to memory of 4392	4468	2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4392

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\misid.exe

Filesize
40KB

MD5
ffc4d77df61a4f8b6154dce84107d597

SHA1
a757f3552a9d0dc08f99713600fb82e2fb106819

SHA256
d8404b2513f0e7c6bbd50920e945acd43d1e18d98c798fd76841b25c7d8e9abe

SHA512
3362916f54ad951d2667dfa43092bd68e95257a8d8c178429d15132fb73be9f08a3c57aafdea555e2cb4bb40711489a9cc32dcd9c02fa3ff6bb42a26b3b87c78

Download Submit
memory/4392-20-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download
memory/4392-19-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/4468-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4468-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4468-2-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4468-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4468-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download