3e270bcb57a6b395a15c073ff9e3135d4bc947ff895bf00d5a93e4b94fbc0e61

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12-03-2024 07:32

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General

Target

2024-03-12_cb77e907af0c2d39ed058a1b0e9feb73_cryptolocker.exe
Size

88KB
MD5

cb77e907af0c2d39ed058a1b0e9feb73
SHA1

708e768c27729614c62d2777ad8f2e055d4185c9
SHA256

3e270bcb57a6b395a15c073ff9e3135d4bc947ff895bf00d5a93e4b94fbc0e61
SHA512

83aa2e6e7c3ec66f63d6401b1a72a0ed414a86f36204c50166ec624d4ff9df85bab927df2b30dc82aa4388629556368fcc38dbee13c35c8e92733394a6d6b7cf
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQYg:vCjsIOtEvwDpj5H8zPsh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-12_cb77e907af0c2d39ed058a1b0e9feb73_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
232	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 3468 wrote to memory of 232	3468	2024-03-12_cb77e907af0c2d39ed058a1b0e9feb73_cryptolocker.exe	89
PID 3468 wrote to memory of 232	3468	2024-03-12_cb77e907af0c2d39ed058a1b0e9feb73_cryptolocker.exe	89
PID 3468 wrote to memory of 232	3468	2024-03-12_cb77e907af0c2d39ed058a1b0e9feb73_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-12_cb77e907af0c2d39ed058a1b0e9feb73_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_cb77e907af0c2d39ed058a1b0e9feb73_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3468
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:232

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
88KB

MD5
e79c3ececd198b70fb3a200437417a3d

SHA1
3e219ec0cd187bc1dc9833d907beb8ef9d63e455

SHA256
2b0b94f69605390fccc4fed19ca24346fa48d96924a428bea21244c2b4d2a215

SHA512
01c7fa729c03870ef9e81f5590d6e657af662d7a0d8871b81632c4d05b84c90222d74d605e4505f1bce73d1f49357122052fdaf98e29d6100b61ad7d8427860e

Download Submit
memory/232-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/232-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3468-0-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3468-1-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3468-2-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download