778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de

General

Target

778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe
Size

180KB
MD5

262d9a79b761f4a8cdca89efb15d96a0
SHA1

0b209933de146800935542249a4f7535818b017f
SHA256

778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de
SHA512

60a8c1065404a718416ebfd70bf9a7d9b301c9585a43f84da342aa19dd83c2cee9bf0e128640f14f610209dbc18dd87ff16628ce6aee7c59188f6443aae37feb
SSDEEP

3072:KFKvr1MlttMFz8o+F334VSlkfoyHYb/zCHPEhg5JN8x+eDfcAuQPUSYrulWi:KFW1MltKaJkHHYb/zCHPEhg5JN8x+eDD

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:

vioiyim.exe778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	vioiyim.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe

Executes dropped EXE 1 IoCs

Processes:

vioiyim.exe

pid process

1152 vioiyim.exe

pid	process
1152	vioiyim.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:

778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe

Adds Run key to start application 2 TTPs 54 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

vioiyim.exe778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /J"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /s"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /v"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /V"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /Y"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /O"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /F"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /y"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /t"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /b"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /W"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /H"	vioiyim.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /m"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /n"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /S"	778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /P"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /h"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /l"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /A"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /M"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /i"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /L"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /T"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /f"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /Q"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /g"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /U"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /C"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /z"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /k"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /Z"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /G"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /r"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /j"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /K"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /E"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /w"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /N"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /u"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /x"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /R"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /I"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /a"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /B"	vioiyim.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\	778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /S"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /e"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /c"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /q"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /o"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /X"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /p"	vioiyim.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vioiyim = "C:\\Users\\Admin\\vioiyim.exe /d"	vioiyim.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:

778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exevioiyim.exe

pid	process
2492	778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe
2492	778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe
1152	vioiyim.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exevioiyim.exe

pid process

2492 778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe
1152 vioiyim.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe

description	pid	process	target process
PID 2492 wrote to memory of 1152	2492	778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe	vioiyim.exe
PID 2492 wrote to memory of 1152	2492	778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe	vioiyim.exe
PID 2492 wrote to memory of 1152	2492	778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe	vioiyim.exe

C:\Users\Admin\AppData\Local\Temp\778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.exe
"C:\Users\Admin\AppData\Local\Temp\778d6eed4658765a77114cbcb0753cc8a46f340e46f301619a498bfa019f00de.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:2492

C:\Users\Admin\vioiyim.exe
"C:\Users\Admin\vioiyim.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:1152

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\vioiyim.exe

Filesize
180KB

MD5
b01ef1b8c79427807ba986c950b31777

SHA1
2932537b800619704adeac4d851b23efc21cb739

SHA256
e2f7520fc9f92b94415c8695f527a446fc48de85d51824a34f3353d24c36e3d1

SHA512
7dba406133c079fe9479d1b0c9650695452da18b3af5de460787dbc20e4f8d84ed5982e7b44892a7e2692fa5f002116886ae4aebc6c5d450fbcd41ab90840f95

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

Filesize
180KB

MD5
b01ef1b8c79427807ba986c950b31777

SHA1
2932537b800619704adeac4d851b23efc21cb739

SHA256
e2f7520fc9f92b94415c8695f527a446fc48de85d51824a34f3353d24c36e3d1

SHA512
7dba406133c079fe9479d1b0c9650695452da18b3af5de460787dbc20e4f8d84ed5982e7b44892a7e2692fa5f002116886ae4aebc6c5d450fbcd41ab90840f95

Download Submit
memory/1152-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads