718e7b1d57fcb5c14d66549ea3fa8846cbbc9abe3aaf971c7219a164e9b2ad88

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
21/04/2024, 03:55

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General

Target

2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe
Size

81KB
MD5

65143fb26981eaf0448429922d84e60c
SHA1

c9ec0ab422d2fb7b7555ea933d4181dc90f6ef03
SHA256

718e7b1d57fcb5c14d66549ea3fa8846cbbc9abe3aaf971c7219a164e9b2ad88
SHA512

f982bf3bb4831884327e133a2fb0a40f9b729c4e62912450470d8735688ce0b0d0d9929efbee05db1db2196e4b3e5720a0dc6dfc452fd91d22a57b93a8771338
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNqV2:vCjsIOtEvwDpj5H9YvQd2p

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-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	2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2340	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 1928 wrote to memory of 2340	1928	2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe	84
PID 1928 wrote to memory of 2340	1928	2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe	84
PID 1928 wrote to memory of 2340	1928	2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2340

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
81KB

MD5
12213abf33441c4c579acb55a42c1cfc

SHA1
84e1d30e939003d60be1691346f8a6ed3d20046a

SHA256
3429d04a5c8056e159312f22fa5de5f799b5dc51fd3f0c176efe28cfbef2bfa4

SHA512
620c2786795ebc73aa2aed3bc01509888418f2d169aaafcc33fe8c1152a186dba01c1a3df4eb8f3358250f1970eb03c1b91dbd2db42019865b6842fd2ea070f2

Download Submit
memory/1928-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1928-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1928-2-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/2340-18-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2340-17-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download