d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1

General

Target

d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe
Size

224KB
MD5

3d3a52e072aea26529fa912e58ddd180
SHA1

4d61a2598335b139e181e31cae9f18c637e2e7e1
SHA256

d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1
SHA512

f28424a3372d880e9c062a8b6e047c4bf3f906ceecb4494c77a08e4b281e75de8281f32384c9724f9827dcb6d3f74f5e710160c8197c3d900bbcc36f9364c95b
SSDEEP

3072:U5IIlrLsIqrgl4iEzjKTF40qVA0KNBxAlDy:U5IEEIqrgCHpXA0KZAE

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exeyuoaso.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	yuoaso.exe

Executes dropped EXE 1 IoCs

Processes:

yuoaso.exe

pid process

4280 yuoaso.exe

pid	process
4280	yuoaso.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

Processes:

d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe

Adds Run key to start application 2 TTPs 55 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exeyuoaso.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /d"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /b"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /C"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /c"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /e"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /N"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /l"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /P"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /g"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /i"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /V"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /D"	yuoaso.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /n"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /S"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /W"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /r"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /R"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /F"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /E"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /a"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /Y"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /x"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /U"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /O"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /h"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /J"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /I"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /M"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /Q"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /A"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /t"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /K"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /p"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /Z"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /z"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /H"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /y"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /m"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /s"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /x"	d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /o"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /L"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /f"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /k"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /B"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /w"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /T"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /G"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /v"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /j"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /q"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /u"	yuoaso.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoaso = "C:\\Users\\Admin\\yuoaso.exe /X"	yuoaso.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exeyuoaso.exe

pid	process
2860	d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe
2860	d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe
4280	yuoaso.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exeyuoaso.exe

pid process

2860 d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe
4280 yuoaso.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe

description	pid	process	target process
PID 2860 wrote to memory of 4280	2860	d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe	yuoaso.exe
PID 2860 wrote to memory of 4280	2860	d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe	yuoaso.exe
PID 2860 wrote to memory of 4280	2860	d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe	yuoaso.exe

C:\Users\Admin\AppData\Local\Temp\d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe
"C:\Users\Admin\AppData\Local\Temp\d6230d40a9370aa71d241a5a8719fcc2d95de6cf1f7be2ef1d989670bbd04ad1.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2860

C:\Users\Admin\yuoaso.exe
"C:\Users\Admin\yuoaso.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4280

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\yuoaso.exe

Filesize
224KB

MD5
51bb893375af742781b778994bfaaa2d

SHA1
bc7a045dfeee941301392f08249743592ce7bda5

SHA256
2a7e069a016face788bfa3dd25f8b12e8d1deb0b718c3e8dfe9ca789d17a0342

SHA512
646471ba9bb74b697e630a8ee01cb5e2c104a5d5c3e725d0372592cbab5c8ece6309675a9e0e6bd587623e495a3c0cbeecf3433d2b989d830fb1642713d769d3

Download Submit
C:\Users\Admin\yuoaso.exe

Filesize
224KB

MD5
51bb893375af742781b778994bfaaa2d

SHA1
bc7a045dfeee941301392f08249743592ce7bda5

SHA256
2a7e069a016face788bfa3dd25f8b12e8d1deb0b718c3e8dfe9ca789d17a0342

SHA512
646471ba9bb74b697e630a8ee01cb5e2c104a5d5c3e725d0372592cbab5c8ece6309675a9e0e6bd587623e495a3c0cbeecf3433d2b989d830fb1642713d769d3

Download Submit
memory/4280-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads