584fb0ecc972cc3e5f79d23bf40602fa71c4cf12e60d33409072bf26a1e7e4a5

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/11/2024, 05:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-11-20_0be417a0ef95758508a71d6d9a6fd3dc_cryptolocker.exe
Size

36KB
MD5

0be417a0ef95758508a71d6d9a6fd3dc
SHA1

03e320e1138b6c289d5c4326f7d6ed0d7b8c5112
SHA256

584fb0ecc972cc3e5f79d23bf40602fa71c4cf12e60d33409072bf26a1e7e4a5
SHA512

ad8233c44571f7dfe896b9f22a4ca569ab60eb22e500dca771f85ceaf096c4d41d44ee02043a745985b165ab3c74783c67bbb46c74d1f2c6be52f43f1795e8e3
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6Z:qDdFJy3QMOtEvwDpjjWMl7T6Z

Score

7^/10

discovery upx

Malware Config

Signatures

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2024-11-20_0be417a0ef95758508a71d6d9a6fd3dc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3080	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2332-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000e000000023b26-13.dat	upx
behavioral2/memory/2332-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3080-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-20_0be417a0ef95758508a71d6d9a6fd3dc_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 3080	2332	2024-11-20_0be417a0ef95758508a71d6d9a6fd3dc_cryptolocker.exe	84
PID 2332 wrote to memory of 3080	2332	2024-11-20_0be417a0ef95758508a71d6d9a6fd3dc_cryptolocker.exe	84
PID 2332 wrote to memory of 3080	2332	2024-11-20_0be417a0ef95758508a71d6d9a6fd3dc_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-11-20_0be417a0ef95758508a71d6d9a6fd3dc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_0be417a0ef95758508a71d6d9a6fd3dc_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3080

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
36KB

MD5
81d6e514fa1de85baf202b43d741c18a

SHA1
0be8de81d901dd5ee746efeb1e2163fa0c2df376

SHA256
8dc99ea81688038d7a7b3a51f3f2ca5097ed45c193bc967de60fd215542bf2ee

SHA512
d7df58420f0ef79a89c0cc680eac2b5557cae3a5384d6f6ff985f0b79ac9df0f8edc3ae2af2bca9c71352a5eab257d5ac1a1f1ff2361f0e772d173f7a81a023a

Download Submit
memory/2332-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2332-1-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2332-2-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2332-3-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/2332-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3080-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3080-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3080-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download