rhysida | 9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8

Analysis

max time kernel
92s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2024 01:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe
Size

1.2MB
MD5

54416fc42afa9b09ea7e8d8e318f4891
SHA1

8c924431049191e763a14503517a9583f070fdeb
SHA256

9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8
SHA512

1ce45889054522a9277ebbd012f20dfe4039feafe5e25a0c9c5293dce867aa06e5550606191a8ce876a6307ffbdba3af41013f1c546cf3c4560827b99a98873a
SSDEEP

24576:RtP7hdO1s6Ekgcec1SgnyN9HPFCCNhQI6GOfaFVIVrYwcMavDiZn3m75/J7:XLO18kgcec0gnyN9HPFCCNSI6GOfaFVp

Score

10^/10

rhysida credential_access defense_evasion discovery execution ransomware spyware stealer

Malware Config

Signatures

Detect Rhysida ransomware 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1004-491-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida
behavioral2/memory/1004-492-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida
behavioral2/memory/1004-493-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida
behavioral2/memory/1004-494-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida

Rhysida
Rhysida is a ransomware that is written in C++ and discovered in 2023.
ransomware rhysida
Renames multiple (1783) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2160 powershell.exe
Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
credential_access stealer

Windows Credential Manager
T1555.004
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Hide Artifacts: Hidden Window 1 TTPs 2 IoCs
Windows that would typically be displayed when an application carries out an operation can be hidden.
defense_evasion

Hidden Window
T1564.003

Processes:

cmd.execmd.exe

pid process

3148 cmd.exe
4236 cmd.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

pid	process
2160	powershell.exe

pid	process
3148	cmd.exe
4236	cmd.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Public\\bg.jpg"	reg.exe

Hide Artifacts: Ignore Process Interrupts 1 TTPs 2 IoCs
Command interpreters often include specific commands/flags that ignore errors and other hangups.
defense_evasion

Ignore Process Interrupts
T1564.011

Processes:

cmd.execmd.exe

pid process

3148 cmd.exe
4236 cmd.exe
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

2160 powershell.exe
2160 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2160 powershell.exe

pid	process
3148	cmd.exe
4236	cmd.exe

pid	process
2160	powershell.exe
2160	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2160	powershell.exe

Suspicious use of WriteProcessMemory 58 IoCs

Processes:

9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1004 wrote to memory of 2176	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1004 wrote to memory of 2176	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 2176 wrote to memory of 5052	2176	cmd.exe	cmd.exe
PID 2176 wrote to memory of 5052	2176	cmd.exe	cmd.exe
PID 5052 wrote to memory of 2068	5052	cmd.exe	reg.exe
PID 5052 wrote to memory of 2068	5052	cmd.exe	reg.exe
PID 1004 wrote to memory of 1716	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1004 wrote to memory of 1716	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1716 wrote to memory of 2860	1716	cmd.exe	cmd.exe
PID 1716 wrote to memory of 2860	1716	cmd.exe	cmd.exe
PID 2860 wrote to memory of 4108	2860	cmd.exe	reg.exe
PID 2860 wrote to memory of 4108	2860	cmd.exe	reg.exe
PID 1004 wrote to memory of 1952	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1004 wrote to memory of 1952	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1952 wrote to memory of 3208	1952	cmd.exe	cmd.exe
PID 1952 wrote to memory of 3208	1952	cmd.exe	cmd.exe
PID 3208 wrote to memory of 4432	3208	cmd.exe	reg.exe
PID 3208 wrote to memory of 4432	3208	cmd.exe	reg.exe
PID 1004 wrote to memory of 3612	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1004 wrote to memory of 3612	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 3612 wrote to memory of 2616	3612	cmd.exe	cmd.exe
PID 3612 wrote to memory of 2616	3612	cmd.exe	cmd.exe
PID 2616 wrote to memory of 3296	2616	cmd.exe	reg.exe
PID 2616 wrote to memory of 3296	2616	cmd.exe	reg.exe
PID 1004 wrote to memory of 1644	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1004 wrote to memory of 1644	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1644 wrote to memory of 1348	1644	cmd.exe	cmd.exe
PID 1644 wrote to memory of 1348	1644	cmd.exe	cmd.exe
PID 1348 wrote to memory of 1180	1348	cmd.exe	reg.exe
PID 1348 wrote to memory of 1180	1348	cmd.exe	reg.exe
PID 1004 wrote to memory of 1856	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1004 wrote to memory of 1856	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1856 wrote to memory of 4412	1856	cmd.exe	cmd.exe
PID 1856 wrote to memory of 4412	1856	cmd.exe	cmd.exe
PID 4412 wrote to memory of 812	4412	cmd.exe	reg.exe
PID 4412 wrote to memory of 812	4412	cmd.exe	reg.exe
PID 1004 wrote to memory of 1880	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1004 wrote to memory of 1880	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1880 wrote to memory of 2024	1880	cmd.exe	cmd.exe
PID 1880 wrote to memory of 2024	1880	cmd.exe	cmd.exe
PID 2024 wrote to memory of 4072	2024	cmd.exe	reg.exe
PID 2024 wrote to memory of 4072	2024	cmd.exe	reg.exe
PID 1004 wrote to memory of 844	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1004 wrote to memory of 844	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 844 wrote to memory of 1112	844	cmd.exe	cmd.exe
PID 844 wrote to memory of 1112	844	cmd.exe	cmd.exe
PID 1112 wrote to memory of 4768	1112	cmd.exe	reg.exe
PID 1112 wrote to memory of 4768	1112	cmd.exe	reg.exe
PID 1004 wrote to memory of 2684	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1004 wrote to memory of 2684	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 2684 wrote to memory of 4468	2684	cmd.exe	rundll32.exe
PID 2684 wrote to memory of 4468	2684	cmd.exe	rundll32.exe
PID 1004 wrote to memory of 3148	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 1004 wrote to memory of 3148	1004	9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe	cmd.exe
PID 3148 wrote to memory of 4236	3148	cmd.exe	cmd.exe
PID 3148 wrote to memory of 4236	3148	cmd.exe	cmd.exe
PID 4236 wrote to memory of 2160	4236	cmd.exe	powershell.exe
PID 4236 wrote to memory of 2160	4236	cmd.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe
"C:\Users\Admin\AppData\Local\Temp\9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1004
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2176
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5052
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
      4⤵
      PID:2068
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1716
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2860
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
      4⤵
      PID:4108
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd.exe /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1952
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3208
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:4432
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd.exe /c reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3612
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2616
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:3296
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd.exe /c reg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Public\bg.jpg" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1644
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Public\bg.jpg" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1348
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Public\bg.jpg" /f
      4⤵
      Sets desktop wallpaper using registry
      PID:1180
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd.exe /c reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v Wallpaper /t REG_SZ /d "C:\Users\Public\bg.jpg" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1856
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v Wallpaper /t REG_SZ /d "C:\Users\Public\bg.jpg" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4412
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v Wallpaper /t REG_SZ /d "C:\Users\Public\bg.jpg" /f
      4⤵
      PID:812
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd.exe /c reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v WallpaperStyle /t REG_SZ /d 2 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1880
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v WallpaperStyle /t REG_SZ /d 2 /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2024
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:4072
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd.exe /c reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:844
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1112
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:4768
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c rundll32.exe user32.dll,UpdatePerUserSystemParameters
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\system32\rundll32.exe
    rundll32.exe user32.dll,UpdatePerUserSystemParameters
    3⤵
    PID:4468
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd.exe /c start powershell.exe -WindowStyle Hidden -Command Sleep -Milliseconds 500; Remove-Item -Force -Path "C:\Users\Admin\AppData\Local\Temp\C:\Users\Admin\AppData\Local\Temp\9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe" -ErrorAction SilentlyContinue;
  2⤵
  - Hide Artifacts: Hidden Window
  - Hide Artifacts: Ignore Process Interrupts
  - Suspicious use of WriteProcessMemory
  PID:3148
- - C:\Windows\system32\cmd.exe
    cmd.exe /c start powershell.exe -WindowStyle Hidden -Command Sleep -Milliseconds 500; Remove-Item -Force -Path "C:\Users\Admin\AppData\Local\Temp\C:\Users\Admin\AppData\Local\Temp\9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe" -ErrorAction SilentlyContinue;
    3⤵
    - Hide Artifacts: Hidden Window
    - Hide Artifacts: Ignore Process Interrupts
    - Suspicious use of WriteProcessMemory
    PID:4236
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -WindowStyle Hidden -Command Sleep -Milliseconds 500; Remove-Item -Force -Path "C:\Users\Admin\AppData\Local\Temp\C:\Users\Admin\AppData\Local\Temp\9097ab2b2b71f3ea0cf8c9271224b6227e9aa2545ae23d4621f122bdb99c77b8.exe" -ErrorAction SilentlyContinue;
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Window

T1564.003

Ignore Process Interrupts

T1564.011

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Windows Credential Manager

T1555.004

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f1mvvqbj.jg0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1004-491-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/1004-492-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/1004-493-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/1004-494-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/2160-495-0x0000023BCB250000-0x0000023BCB272000-memory.dmp

Filesize
136KB

Download