bbbabea4b145a66f9af94d1052fc599b187a569dab48874e8c1537ddcf8b3aee

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 03:49

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General

Target

2024-02-19_9cfc4d132f7b451f4cf24888aea00bb0_cryptolocker.exe
Size

75KB
MD5

9cfc4d132f7b451f4cf24888aea00bb0
SHA1

98c69066823e77c4f4e058eef562c12e4048b1b0
SHA256

bbbabea4b145a66f9af94d1052fc599b187a569dab48874e8c1537ddcf8b3aee
SHA512

55bf0e7bba564daef5fe998ebc099b1c9c53aaffcce3bcdf93afadc5ab4713760d2b92a859813b25c216a64ca2d939d0946a5c30781dbf2d9adaa70f406502ff
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KuN:ZVxkGOtEvwDpjcap

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f7-13.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-19_9cfc4d132f7b451f4cf24888aea00bb0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5052	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 4892 wrote to memory of 5052	4892	2024-02-19_9cfc4d132f7b451f4cf24888aea00bb0_cryptolocker.exe	85
PID 4892 wrote to memory of 5052	4892	2024-02-19_9cfc4d132f7b451f4cf24888aea00bb0_cryptolocker.exe	85
PID 4892 wrote to memory of 5052	4892	2024-02-19_9cfc4d132f7b451f4cf24888aea00bb0_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-19_9cfc4d132f7b451f4cf24888aea00bb0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_9cfc4d132f7b451f4cf24888aea00bb0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4892
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:5052

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
75KB

MD5
13901664915dec285604724f0a7a4347

SHA1
8e0f25561bd80eb1557ee68c367669d2a1e316f2

SHA256
4394a1bbda62d61d59c0e9e9242132dedfcfe4a43c878d8951dad6c5c47ec2a2

SHA512
251458653edd6c87c50061d647f4aeb13d93ad0487711a5670c7d0b5b1a38f70ca34a50945cf0eded27fc7acdd952b4c430fcdfec0a2c46701125e96e7797360

Download Submit
memory/4892-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4892-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4892-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4892-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/4892-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/5052-18-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/5052-22-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/5052-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/5052-27-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download