f27a808d1a1534951b041e5dc5f21ac5d1cedd9fbf55d12fc504d4aca41b52ca

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10-06-2024 19:31

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General

Target

2024-06-10_baa3b731d8c1184dc50115546f03dc65_cryptolocker.exe
Size

87KB
MD5

baa3b731d8c1184dc50115546f03dc65
SHA1

9d7be51d297da63657d15a03cf0d29885db297ab
SHA256

f27a808d1a1534951b041e5dc5f21ac5d1cedd9fbf55d12fc504d4aca41b52ca
SHA512

91f093065980c1eaac154babee75bd7be246580220599de018205ce5c28e25be9901c92d824c76e159ee59df32e4ca925d8e12b94f22baded8c4fed52006fd40
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNBlT:vCjsIOtEvwDpj5H9YvQd2h

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000233be-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000233be-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-10_baa3b731d8c1184dc50115546f03dc65_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3640	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 3276 wrote to memory of 3640	3276	2024-06-10_baa3b731d8c1184dc50115546f03dc65_cryptolocker.exe	81
PID 3276 wrote to memory of 3640	3276	2024-06-10_baa3b731d8c1184dc50115546f03dc65_cryptolocker.exe	81
PID 3276 wrote to memory of 3640	3276	2024-06-10_baa3b731d8c1184dc50115546f03dc65_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-10_baa3b731d8c1184dc50115546f03dc65_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_baa3b731d8c1184dc50115546f03dc65_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3276
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3640

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
87KB

MD5
3f243dc5d8247325e8b8791d335999a5

SHA1
2ebd31a1b3966ef79d0a0f3e9679752a796d2d4b

SHA256
bb292a7d43b847f82c3927d800568a804aa07b3266638401080a3425eb77908b

SHA512
97a03bdfebcc4f839e97f885b0295625151da9cbe9f128379d923de1abc4cbe994e31b0b1bc6b9ef655dfdcae4e263ee4cd8f129d51908fa05d88e8f676bd158

Download Submit
memory/3276-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3276-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3276-7-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3640-17-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/3640-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download