a789407246ea29f33900cb884c18a48200623107f187f6b6b6f81e6704b155f4

Analysis

max time kernel
146s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/04/2024, 19:03

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General

Target

2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe
Size

63KB
MD5

e2982eb40dececa425a54bd4ec901e01
SHA1

68779e5ab68fdbcd47106537401f4d0e60873d36
SHA256

a789407246ea29f33900cb884c18a48200623107f187f6b6b6f81e6704b155f4
SHA512

12fdc2cd7137ac74bfae5a9fff38907c389345a7aaf77d0830e5db0fb6b07d212f11b1a1530e3129e0db37c15f1a5a234c8a3b79b2c1d7621385b80f492af64c
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmh857:V6a+pOtEvwDpjvk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023210-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023210-12.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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4220	asih.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 4416 wrote to memory of 4220	4416	2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe	83
PID 4416 wrote to memory of 4220	4416	2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe	83
PID 4416 wrote to memory of 4220	4416	2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4416
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4220

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\asih.exe

Filesize
64KB

MD5
04bf8bbfaa0da06be878859619a818ed

SHA1
94deb5a15b2776f4924a1bb6d0b5249a7de55e6c

SHA256
12e633233ec01fc401bb0eadfba70cc2357676c510e84fac8ce6ea1705b65ae4

SHA512
585b9714978014bf6be21838616acc4411534f3daad6b6bf67954a8e1439c565d1c0b22a0c864b20ec4f82f43a70d8214a43ef8a6feb4c252738696f3855d7de

Download Submit
memory/4220-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4220-19-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4416-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4416-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4416-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download