a4d66825bbb4bd8332dafc57dc7bdfe38888d72e1616b75924cd115a55da3d75

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11/09/2024, 12:19

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General

Target

TheYalioptimization.exe
Size

1.1MB
MD5

e95c73bed223742b3168d86504f4ad16
SHA1

ddf882953bd8f510596b2697d021057a45afa2d4
SHA256

a4d66825bbb4bd8332dafc57dc7bdfe38888d72e1616b75924cd115a55da3d75
SHA512

3fdaf9dbf230b93ddae435247f3d46d0e312bf95b06be3da5b8fe16138e60510007e456b707fed47b980432a91f2f6eebfa6da7561af3865769cb0c00a8a3b5b
SSDEEP

12288:qOxPkPjQeqQ1Y53KRYTd25O07Y1iuJ0F+Z0ky3ETd25O07Y1iuJ0F+Z0ky3TEaGY:8EeqQq3KSTd50E1pkETd50E1pkToY

Score

8^/10

persistence

Malware Config

Signatures

Event Triggered Execution: Image File Execution Options Injection 1 TTPs 4 IoCs

persistence

Image File Execution Options Injection

T1546.012

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\FortniteClient-Win64-Shipping.exe\PerfOptions	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\FortniteClient-Win64-Shipping.exe	regedit.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\FortniteClient-Win64-Shipping.exe\PerfOptions\CpuPriorityClass = "3"	regedit.exe

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	TheYalioptimization.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\The Yali Optimization Files	TheYalioptimization.exe
File created	C:\Program Files\The Yali Optimization Files\__tmp_rar_sfx_access_check_240626703	TheYalioptimization.exe
File created	C:\Program Files\The Yali Optimization Files\The Yali optimization reg.reg	TheYalioptimization.exe
File opened for modification	C:\Program Files\The Yali Optimization Files\The Yali optimization reg.reg	TheYalioptimization.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\Local Settings	TheYalioptimization.exe

Runs .reg file with regedit 1 IoCs

pid	Process
4092	regedit.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 512 wrote to memory of 4092	512	TheYalioptimization.exe	83
PID 512 wrote to memory of 4092	512	TheYalioptimization.exe	83

C:\Users\Admin\AppData\Local\Temp\TheYalioptimization.exe
"C:\Users\Admin\AppData\Local\Temp\TheYalioptimization.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:512
- C:\Windows\regedit.exe
  "regedit.exe" "C:\Program Files\The Yali Optimization Files\The Yali optimization reg.reg"
  2⤵
  - Event Triggered Execution: Image File Execution Options Injection
  - Runs .reg file with regedit
  PID:4092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Privilege Escalation

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\The Yali Optimization Files\The Yali optimization reg.reg

Filesize
3KB

MD5
49e06389d4bc01a5365784f921616a6e

SHA1
d171cae837b49a082221452ffe615b640b122b98

SHA256
cb3c820004dfcfa191df668feda572470e43252678f236f32bb7df9186c0fca9

SHA512
739b2699b2043ae075c0de670186ee40d5c02b8e2226aa00632f2d536103a6931f2ee1a56e83a822e34d56ef37d01e7f40f772223cf96267c3d3dbe51444ddd8

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads