9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5

Analysis

max time kernel
141s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2022, 19:52

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General

Target

9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
Size

284KB
MD5

5734d6763c7ac808169dbc753afb02ec
SHA1

2523ac0705b7ddac7ab183473aa7b11ad91ddb2d
SHA256

9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5
SHA512

e5e41ac1f9378c160a59de32b54c8ecfe60870640120f65106f25ad96637a4cbca90f24fde36e3c0bdc449d3e58e0f522c197a9dbb0d18923e527882be66c67a
SSDEEP

6144:PsDIMNVRb9ChrASE6j61ddLb3S2NZuUBxSh4H4:kDIMvRBorARdvSiZU1

Score

10^/10

bootkit evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	lsass.exe

Executes dropped EXE 3 IoCs

pid	Process
4484	lsass.exe
3368	lsass.exe
3556	lsass.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1240	netsh.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	lsass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	lsass.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	lsass.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	lsass.exe

Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	lsass.exe
File opened for modification	\??\PhysicalDrive0	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4956 set thread context of 4416	4956	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	81
PID 4416 set thread context of 2024	4416	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	82
PID 4484 set thread context of 3368	4484	lsass.exe	86
PID 3368 set thread context of 3556	3368	lsass.exe	87

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4956	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
4416	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
2024	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
4484	lsass.exe
3368	lsass.exe
3556	lsass.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 4416	4956	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	81
PID 4956 wrote to memory of 4416	4956	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	81
PID 4956 wrote to memory of 4416	4956	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	81
PID 4956 wrote to memory of 4416	4956	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	81
PID 4956 wrote to memory of 4416	4956	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	81
PID 4956 wrote to memory of 4416	4956	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	81
PID 4956 wrote to memory of 4416	4956	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	81
PID 4956 wrote to memory of 4416	4956	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	81
PID 4416 wrote to memory of 2024	4416	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	82
PID 4416 wrote to memory of 2024	4416	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	82
PID 4416 wrote to memory of 2024	4416	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	82
PID 4416 wrote to memory of 2024	4416	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	82
PID 4416 wrote to memory of 2024	4416	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	82
PID 4416 wrote to memory of 2024	4416	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	82
PID 4416 wrote to memory of 2024	4416	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	82
PID 4416 wrote to memory of 2024	4416	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	82
PID 2024 wrote to memory of 1240	2024	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	83
PID 2024 wrote to memory of 1240	2024	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	83
PID 2024 wrote to memory of 1240	2024	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	83
PID 2024 wrote to memory of 4484	2024	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	85
PID 2024 wrote to memory of 4484	2024	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	85
PID 2024 wrote to memory of 4484	2024	9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe	85
PID 4484 wrote to memory of 3368	4484	lsass.exe	86
PID 4484 wrote to memory of 3368	4484	lsass.exe	86
PID 4484 wrote to memory of 3368	4484	lsass.exe	86
PID 4484 wrote to memory of 3368	4484	lsass.exe	86
PID 4484 wrote to memory of 3368	4484	lsass.exe	86
PID 4484 wrote to memory of 3368	4484	lsass.exe	86
PID 4484 wrote to memory of 3368	4484	lsass.exe	86
PID 4484 wrote to memory of 3368	4484	lsass.exe	86
PID 3368 wrote to memory of 3556	3368	lsass.exe	87
PID 3368 wrote to memory of 3556	3368	lsass.exe	87
PID 3368 wrote to memory of 3556	3368	lsass.exe	87
PID 3368 wrote to memory of 3556	3368	lsass.exe	87
PID 3368 wrote to memory of 3556	3368	lsass.exe	87
PID 3368 wrote to memory of 3556	3368	lsass.exe	87
PID 3368 wrote to memory of 3556	3368	lsass.exe	87
PID 3368 wrote to memory of 3556	3368	lsass.exe	87

C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
"C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
  "C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe"
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4416
- - C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
    "C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Adds Run key to start application
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2024
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\lsass.exe" CityScape Enable
      4⤵
      Modifies Windows Firewall
      PID:1240
  - - C:\Users\Admin\AppData\Roaming\lsass.exe
      /d C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4484
    - - C:\Users\Admin\AppData\Roaming\lsass.exe
        
        /d C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
        5⤵
        Executes dropped EXE
        Writes to the Master Boot Record (MBR)
        Suspicious use of SetThreadContext
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3368
      - C:\Users\Admin\AppData\Roaming\lsass.exe
        
        /d C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
        6⤵
        Modifies WinLogon for persistence
        Executes dropped EXE
        Adds Run key to start application
        Suspicious use of SetWindowsHookEx
        
        PID:3556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\lsass.exe

Filesize
284KB

MD5
53b45b6e6b422bf0ba327fa99a84d8ef

SHA1
a073ee37d2620c465b9481adad0b0b7670275d9a

SHA256
c32db5364171296322aa9f588601c9b34f231768188e4de183d49b85b6d7fb69

SHA512
b9938bdd57ff5bec24039078cb659eb1a35d1e3aceff6af9e34f418c928db72c2994348e6a21c288470d3bb3a3b3d1caf799972db0a2be68ed7aa88439be2fd6

Download Submit
C:\Users\Admin\AppData\Roaming\lsass.exe

Filesize
284KB

MD5
53b45b6e6b422bf0ba327fa99a84d8ef

SHA1
a073ee37d2620c465b9481adad0b0b7670275d9a

SHA256
c32db5364171296322aa9f588601c9b34f231768188e4de183d49b85b6d7fb69

SHA512
b9938bdd57ff5bec24039078cb659eb1a35d1e3aceff6af9e34f418c928db72c2994348e6a21c288470d3bb3a3b3d1caf799972db0a2be68ed7aa88439be2fd6

Download Submit
C:\Users\Admin\AppData\Roaming\lsass.exe

Filesize
284KB

MD5
53b45b6e6b422bf0ba327fa99a84d8ef

SHA1
a073ee37d2620c465b9481adad0b0b7670275d9a

SHA256
c32db5364171296322aa9f588601c9b34f231768188e4de183d49b85b6d7fb69

SHA512
b9938bdd57ff5bec24039078cb659eb1a35d1e3aceff6af9e34f418c928db72c2994348e6a21c288470d3bb3a3b3d1caf799972db0a2be68ed7aa88439be2fd6

Download Submit
C:\Users\Admin\AppData\Roaming\lsass.exe

Filesize
284KB

MD5
53b45b6e6b422bf0ba327fa99a84d8ef

SHA1
a073ee37d2620c465b9481adad0b0b7670275d9a

SHA256
c32db5364171296322aa9f588601c9b34f231768188e4de183d49b85b6d7fb69

SHA512
b9938bdd57ff5bec24039078cb659eb1a35d1e3aceff6af9e34f418c928db72c2994348e6a21c288470d3bb3a3b3d1caf799972db0a2be68ed7aa88439be2fd6

Download Submit
memory/2024-145-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2024-140-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2024-152-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3368-163-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3556-166-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3556-167-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4416-143-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4416-135-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads