58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53

General

Target

58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe
Size

184KB
MD5

98b8a2148096760c4773a320e742ac3b
SHA1

6433948aa5468628660561d364438257bf1e100f
SHA256

58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53
SHA512

d06ff048d713f2d5b708d8acebde91f553162b48abec8f5cd2917c763e762fa1a4edccda82014109c9fc344ae78e44f57e332b2dd4d41e131f5d91715ca06bdf
SSDEEP

3072:IzIj4kWQUApO3LN7WeAfbY1e1EZP5EFBS:q77A4LkbWe1WPmB

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:

58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exefiobu.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"	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	fiobu.exe

Executes dropped EXE 1 IoCs

Processes:

fiobu.exe

pid process

4904 fiobu.exe

pid	process
4904	fiobu.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:

58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe

Adds Run key to start application 2 TTPs 29 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exefiobu.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /k"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /g"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /q"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /m"	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /n"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /b"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /a"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /t"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /j"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /m"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /l"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /s"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /o"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /y"	fiobu.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /r"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /p"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /e"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /v"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /h"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /x"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /c"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /d"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /f"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /u"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /z"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /i"	fiobu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiobu = "C:\\Users\\Admin\\fiobu.exe /w"	fiobu.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exefiobu.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	fiobu.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	fiobu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exefiobu.exe

pid	process
4636	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe
4636	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe
4904	fiobu.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exefiobu.exe

pid process

4636 58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe
4904 fiobu.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe

description	pid	process	target process
PID 4636 wrote to memory of 4904	4636	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe	fiobu.exe
PID 4636 wrote to memory of 4904	4636	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe	fiobu.exe
PID 4636 wrote to memory of 4904	4636	58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe	fiobu.exe

C:\Users\Admin\AppData\Local\Temp\58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe
"C:\Users\Admin\AppData\Local\Temp\58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4636

C:\Users\Admin\fiobu.exe
"C:\Users\Admin\fiobu.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4904

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4064

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

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\fiobu.exe

Filesize
184KB

MD5
98b8a2148096760c4773a320e742ac3b

SHA1
6433948aa5468628660561d364438257bf1e100f

SHA256
58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53

SHA512
d06ff048d713f2d5b708d8acebde91f553162b48abec8f5cd2917c763e762fa1a4edccda82014109c9fc344ae78e44f57e332b2dd4d41e131f5d91715ca06bdf

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

Filesize
184KB

MD5
98b8a2148096760c4773a320e742ac3b

SHA1
6433948aa5468628660561d364438257bf1e100f

SHA256
58570927225ad30b8d4cf41f16aad0330c401b3b57bb9e0d88048028b4c0fa53

SHA512
d06ff048d713f2d5b708d8acebde91f553162b48abec8f5cd2917c763e762fa1a4edccda82014109c9fc344ae78e44f57e332b2dd4d41e131f5d91715ca06bdf

Download Submit
memory/4904-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads