d1ffba547ec714ed5720b59ccd2a345bf33a8c2c3ab2ab3b8a933f39c185e6b9

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
21-04-2024 04:00

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General

Target

2024-04-21_707f91d2ea3422a749bc8a667ace86ff_cryptolocker.exe
Size

76KB
MD5

707f91d2ea3422a749bc8a667ace86ff
SHA1

b5f781f56acbc3ea4acb27a0c29d1bf3005d1306
SHA256

d1ffba547ec714ed5720b59ccd2a345bf33a8c2c3ab2ab3b8a933f39c185e6b9
SHA512

11a1531c39f91ad217f46be65fbce950b5c3df91dc04701f9bdee00501f64e845fa3af632ba0e5539b697fd439f2355bb68a9d24a564a0bc801251a9aaf9c6a9
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3Ku3w:ZVxkGOtEvwDpjcaU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001db0e-13.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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	2024-04-21_707f91d2ea3422a749bc8a667ace86ff_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
528	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 1028 wrote to memory of 528	1028	2024-04-21_707f91d2ea3422a749bc8a667ace86ff_cryptolocker.exe	86
PID 1028 wrote to memory of 528	1028	2024-04-21_707f91d2ea3422a749bc8a667ace86ff_cryptolocker.exe	86
PID 1028 wrote to memory of 528	1028	2024-04-21_707f91d2ea3422a749bc8a667ace86ff_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-21_707f91d2ea3422a749bc8a667ace86ff_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_707f91d2ea3422a749bc8a667ace86ff_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:528

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
76KB

MD5
63ce474d75de4d12819dc71a770d3418

SHA1
5a15a5e04f059cf01b4e8cde5fb42a39a8b38961

SHA256
4642f6ec33070d27ba780bd3ed3da2872a5ee272f60f209b67099dc208f8d1bd

SHA512
df4d00cc124edc8769b781237dd346ed431ac51c4a44b4bde3bd680f7b0d65e0ab8d02d6d2e9ff99e6f5eddaee7cb421edf4ea3fbaf2dc60627b396a8be4df1b

Download Submit
memory/528-19-0x0000000000870000-0x0000000000876000-memory.dmp

Filesize
24KB

Download
memory/528-21-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1028-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1028-1-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/1028-2-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/1028-3-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/1028-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download