d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75

General

Target

d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe
Size

228KB
MD5

77baf2e77a5be6b1e765eb0cad6f72c7
SHA1

e5640a82fd468ee5a8dc8e4e8019d52519f68d85
SHA256

d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75
SHA512

adcb1093b9da0af6d5dcc6a7ae26192f5c4b11adf2832456c73c6fb6c3df716e45e444d31306d23beebfb5f1d1d14d03894c4231b24d3a382fa8805a63a34a95
SSDEEP

6144:sGiFR6zJ1IFZ8hQJUnjpQkRw4CQvoscWkpRQdHrts25l:sGi+zJ1IFehQs0jpRQdHry2

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Processes:

bioyo.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	bioyo.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:

d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe

Executes dropped EXE 1 IoCs

Processes:

bioyo.exe

pid process

4072 bioyo.exe

Adds Run key to start application 2 TTPs 52 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

bioyo.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /T"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /n"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /A"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /w"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /c"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /I"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /Z"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /p"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /h"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /l"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /J"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /t"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /P"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /X"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /u"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /O"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /s"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /r"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /x"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /N"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /y"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /R"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /B"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /q"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /D"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /a"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /E"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /K"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /d"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /v"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /g"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /G"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /j"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /m"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /f"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /C"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /W"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /S"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /M"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /U"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /F"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /b"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /o"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /L"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /Y"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /H"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /Q"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /V"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /i"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /k"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /z"	bioyo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bioyo = "C:\\Users\\Admin\\bioyo.exe /e"	bioyo.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

bioyo.exe

pid	process
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe
4072	bioyo.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exebioyo.exe

pid process

3016 d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe
4072 bioyo.exe

pid	process
3016	d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe
4072	bioyo.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe

description	pid	process	target process
PID 3016 wrote to memory of 4072	3016	d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe	bioyo.exe
PID 3016 wrote to memory of 4072	3016	d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe	bioyo.exe
PID 3016 wrote to memory of 4072	3016	d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe	bioyo.exe

C:\Users\Admin\AppData\Local\Temp\d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe
"C:\Users\Admin\AppData\Local\Temp\d3a1c240cb9aeea95a2b42f156e5bfce358980a70fa03185d22898120bb37e75.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3016

C:\Users\Admin\bioyo.exe
"C:\Users\Admin\bioyo.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:4072

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4060 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
1⤵
PID:1860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Hide Artifacts

1

T1564

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\bioyo.exe

Filesize
228KB

MD5
9800f09e56239121b840a592925f2e30

SHA1
eb3626bc238ad635075f9b128922506c77109f3a

SHA256
9c47b792d7bd7de3987677de57431afa8c4fa4562be0f99bd186084660fd7658

SHA512
3ffa7e25fece874d60dcebe485aa5bcc19394c6cc64e3bedaf8c1c915b15364912e69b8879facbbfee1314b635cec1353b675c3baf0919ee0f128a56f0f9b538

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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