be115e51f481060dba3de98ac4902737cc4f7221fb5d61fb1c3415a34d032c51

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 23:34

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General

Target

2024-02-23_9b882397840ec8b5c02293141a3c5e9a_cryptolocker.exe
Size

79KB
MD5

9b882397840ec8b5c02293141a3c5e9a
SHA1

e01aece458d3ce9f97baddc3891d0e3831273036
SHA256

be115e51f481060dba3de98ac4902737cc4f7221fb5d61fb1c3415a34d032c51
SHA512

424345cab77c0ee95524d7c26bfe9fb3d54a747fe77cdc1bdfb5b7a06e113e0d75b1198b48990e4e9bb79e51e1d5a8b29f518fa1fa8ecc1608fb6f758332a733
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNb:vCjsIOtEvwDpj5H9YvQd21

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231e2-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231e2-12.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-1-5-21-3054445511-921769590-4013668107-1000\Control Panel\International\Geo\Nation	2024-02-23_9b882397840ec8b5c02293141a3c5e9a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3236	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 5024 wrote to memory of 3236	5024	2024-02-23_9b882397840ec8b5c02293141a3c5e9a_cryptolocker.exe	87
PID 5024 wrote to memory of 3236	5024	2024-02-23_9b882397840ec8b5c02293141a3c5e9a_cryptolocker.exe	87
PID 5024 wrote to memory of 3236	5024	2024-02-23_9b882397840ec8b5c02293141a3c5e9a_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-23_9b882397840ec8b5c02293141a3c5e9a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_9b882397840ec8b5c02293141a3c5e9a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3236

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
79KB

MD5
f80ef51bdb738c28339c784358d76055

SHA1
a63b60f337b5f2ae88db23f06de07497d94996f6

SHA256
31e61e7663e8a3eccb7e471e0b65a85c39904b0304d0371ad35c30e837a8c2a3

SHA512
db0949ad3e73a612ff806f1f6ce8ece91a74c1398e789d34916e5b0a894246654dd5bb6701a38f51887e985b6a2baf5c53feb8bb1a29369d4a50433cca653e55

Download Submit
memory/3236-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3236-17-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/5024-0-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/5024-1-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/5024-2-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download