15698a0d480ef42544e023c48faf6e66fbf159c54eedc999d1c303cdf32d772a

Analysis

max time kernel
148s
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
15-04-2024 17:29

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General

Target

2024-04-15_20e00a46acc0033d950d3ee8a76b010c_cryptolocker.exe
Size

126KB
MD5

20e00a46acc0033d950d3ee8a76b010c
SHA1

7331d2cb7c11827f762f5ddcf0b78fbf3e171682
SHA256

15698a0d480ef42544e023c48faf6e66fbf159c54eedc999d1c303cdf32d772a
SHA512

d7c6071df727aea99e7384a21557cf29433491f644fc51e6f3511a0712f512eb169608b40169d6577fcdc8f2d7ad5e434a1efa5f6b8217dbbd71e6ea50a76cd3
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxE4qde:vCA9OtEvwDpje

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b0000000233f2-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b0000000233f2-12.dat	CryptoLocker_set1

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-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	2024-04-15_20e00a46acc0033d950d3ee8a76b010c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1072	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 2912 wrote to memory of 1072	2912	2024-04-15_20e00a46acc0033d950d3ee8a76b010c_cryptolocker.exe	83
PID 2912 wrote to memory of 1072	2912	2024-04-15_20e00a46acc0033d950d3ee8a76b010c_cryptolocker.exe	83
PID 2912 wrote to memory of 1072	2912	2024-04-15_20e00a46acc0033d950d3ee8a76b010c_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-15_20e00a46acc0033d950d3ee8a76b010c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_20e00a46acc0033d950d3ee8a76b010c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1072

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
126KB

MD5
a7d6901d8b6c77fe13ea41fed989845e

SHA1
b24f35b0d6353ac3f7979a02e0c0e7f09b067afe

SHA256
efb4f12b763a5890ff73b84c48477293256ac64972807c7724b7f7c52d53944b

SHA512
4fbf5f9ff5d964e950aacbb37655ccc0f4972c1810154bf0356208de2a650906092797214579c32a93b92ee9f9a5a86e1bbd88e62159816f1cf59bb23708c175

Download Submit
memory/1072-17-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1072-20-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2912-0-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/2912-1-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/2912-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download