e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2

Analysis

max time kernel
14s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 04:05

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General

Target

e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
Size

144KB
MD5

1712b04615487183ff0753de33fa0ab1
SHA1

50fc233560cc0f368931ca5b47b7a689742f6ff2
SHA256

e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2
SHA512

6009df48809ce21225cf08565184ee6656d2cea59c306317f0c121310630e4b8f904f90c9328458c50885dde3c6d3848112784dcfa6b637a041c99d64a6f9166
SSDEEP

3072:l5SVkkgUgXC7AdYzrV+Dljy/32ubwZ/qJ:SUFCkdYzrVolu/J0Z/

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 7 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2424-12-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/2424-9-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/2424-8-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/2424-2-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/2424-36-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/2424-51-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/4748-53-0x0000000000400000-0x000000000040B000-memory.dmp	UPX

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

Processes:

e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2424-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2424-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2424-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2424-2-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2424-36-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2424-51-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4748-53-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sidebar = "C:\\Users\\Admin\\AppData\\Roaming\\SystemWindows\\WindowsService.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe

description	pid	process	target process
PID 1944 set thread context of 2424	1944	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe

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

System Information Discovery
T1082
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exee8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe

pid process

1944 e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
2424 e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe

pid	process
1944	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
2424	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exee8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.execmd.exe

description	pid	process	target process
PID 1944 wrote to memory of 2424	1944	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
PID 1944 wrote to memory of 2424	1944	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
PID 1944 wrote to memory of 2424	1944	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
PID 1944 wrote to memory of 2424	1944	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
PID 1944 wrote to memory of 2424	1944	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
PID 1944 wrote to memory of 2424	1944	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
PID 1944 wrote to memory of 2424	1944	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
PID 1944 wrote to memory of 2424	1944	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
PID 2424 wrote to memory of 4816	2424	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	cmd.exe
PID 2424 wrote to memory of 4816	2424	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	cmd.exe
PID 2424 wrote to memory of 4816	2424	e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe	cmd.exe
PID 4816 wrote to memory of 2776	4816	cmd.exe	reg.exe
PID 4816 wrote to memory of 2776	4816	cmd.exe	reg.exe
PID 4816 wrote to memory of 2776	4816	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
"C:\Users\Admin\AppData\Local\Temp\e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1944

C:\Users\Admin\AppData\Local\Temp\e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe
"C:\Users\Admin\AppData\Local\Temp\e8d0e23d5aa07643065509a781685239885b04a3d39d78aa537e3dc3ae5075a2.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2424

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YUVIO.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:4816

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "sidebar" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\SystemWindows\WindowsService.exe" /f
4⤵
- Adds Run key to start application
PID:2776

C:\Users\Admin\AppData\Roaming\SystemWindows\WindowsService.exe
"C:\Users\Admin\AppData\Roaming\SystemWindows\WindowsService.exe"
3⤵
PID:1372

C:\Users\Admin\AppData\Roaming\SystemWindows\WindowsService.exe
"C:\Users\Admin\AppData\Roaming\SystemWindows\WindowsService.exe"
4⤵
PID:4748

C:\Users\Admin\AppData\Roaming\SystemWindows\WindowsService.exe
"C:\Users\Admin\AppData\Roaming\SystemWindows\WindowsService.exe"
4⤵
PID:1856

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\YUVIO.txt
Filesize
157B

MD5
f6a90c20834f271a907a4e2bc28184c2

SHA1
36c9d1602b74f622346fbb22693597d7889df48d

SHA256
73f29cd953eee40cea4de67842556ffd96efe8094a6a9b70f33a35df2582febd

SHA512
39cabae19fe1faa37455e4bd242c868be60d6252b07f01224b3f7501c3cf734e503300b840d83381a452707cab6df2f95f920655884be56d4024676b26943804

Download Submit
C:\Users\Admin\AppData\Roaming\SystemWindows\WindowsService.exe
Filesize
144KB

MD5
b48b37b0a91f6ee15f9a663939be889e

SHA1
2a3a64f42894542fa18c57aef215199433701c80

SHA256
739f69602e839b5ba1663113b9552b1e75fabc0a2aae5b4ecdbd8f0eb40a3f3a

SHA512
8e9d198b4d3d740ba3cfd9ddb1cc85cd09c613d4b5617f9c7c6c85d5cc7994f77da3d53eb72b33736f1358d14865db11fce5826d2d00aeafa0e0d66f60963f8a

Download Submit
memory/1372-40-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1372-50-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1856-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1856-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1856-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1856-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1856-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1944-6-0x0000000002AB0000-0x0000000002AB1000-memory.dmp

Filesize
4KB

Download
memory/1944-5-0x0000000002A70000-0x0000000002A71000-memory.dmp

Filesize
4KB

Download
memory/1944-7-0x0000000002AF0000-0x0000000002AF1000-memory.dmp

Filesize
4KB

Download
memory/2424-36-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-2-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-51-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4748-53-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download