d447ee5e77c643183345746f70677d9ae869d4258073889914b8ba6c3a7fd476

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2024, 03:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe
Size

65KB
MD5

6f9f57af77054eab4d336290929be1a4
SHA1

529ce6f6944bceeb56411aeced578082367ab235
SHA256

d447ee5e77c643183345746f70677d9ae869d4258073889914b8ba6c3a7fd476
SHA512

7f6fad0db58489328408451b68e3d503e41c909d3f08466e24e7810de180006c660c98afc0a219639adb66ba02a08d21490307eb2f44372b76843620479cfd43
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAoS:1nK6a+qdOOtEvwDpjI

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4208	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4068-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x0008000000023452-13.dat	upx
behavioral2/memory/4068-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/4208-26-0x0000000000500000-0x000000000050F311-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	2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4068 wrote to memory of 4208	4068	2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe	82
PID 4068 wrote to memory of 4208	4068	2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe	82
PID 4068 wrote to memory of 4208	4068	2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4068
- 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:4208

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
65KB

MD5
0aaf2174b958b7bb905d6855cdf8f4b5

SHA1
16c77570f4e4d286987bd3ca3f1b23cfdc386bb3

SHA256
9dfe2f1cefd1d54ed7285ecf9908e4a0102378159f7ef92a9af8b32da45bb697

SHA512
7bba3cf3fd04ea01547579524d84ba74b223fd6e7190a7b0a45e2107ffcfca15ee4d108e9f4203eac1894f9ba61ef3c60371bc0cce2ccfc99fa99e88cf4a2b0f

Download Submit
memory/4068-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4068-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4068-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4068-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4068-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4208-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4208-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4208-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download