rhysida | 67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5

Analysis

max time kernel
104s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20250410-en
resource tags

arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
submitted
12/04/2025, 13:48

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General

Target

67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe
Size

1.2MB
MD5

67edfff8250487d97f403c74fed85388
SHA1

f20bc8af34dd292e017caf4d42dd95d0cdc08792
SHA256

67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5
SHA512

6d6e7ac43b04a1e129fb4a2b9dd2427745a0af32eb02ec4f8a612567356ac2e7e54977ede134b9650da4b5159ab28fb6decb067bd8889253d8fe04343ab52797
SSDEEP

24576:utP7hdO1s6Skscec1SgnyN9HPFCCNhQI6GOfaFVIVrYwcMavDiZn3m75/J7:gLO1qkscec0gnyN9HPFCCNSI6GOfaFVp

Score

10^/10

rhysida credential_access defense_evasion discovery execution ransomware spyware stealer

Malware Config

Signatures

Detect Rhysida ransomware 4 IoCs

resource	yara_rule
behavioral1/memory/1140-1195-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida
behavioral1/memory/1140-1221-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida
behavioral1/memory/1140-1222-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida
behavioral1/memory/1140-1223-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida

Rhysida
Rhysida is a ransomware that is written in C++ and discovered in 2023.
ransomware rhysida
Rhysida family
rhysida
Renames multiple (2524) 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

pid	Process
5668	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

pid	Process
4680	cmd.exe
4368	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

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\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

pid	Process
4680	cmd.exe
4368	cmd.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5668	powershell.exe
5668	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5668	powershell.exe

Suspicious use of WriteProcessMemory 58 IoCs

description	pid	Process	procid_target
PID 1140 wrote to memory of 5540	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	96
PID 1140 wrote to memory of 5540	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	96
PID 5540 wrote to memory of 2228	5540	cmd.exe	97
PID 5540 wrote to memory of 2228	5540	cmd.exe	97
PID 2228 wrote to memory of 4128	2228	cmd.exe	98
PID 2228 wrote to memory of 4128	2228	cmd.exe	98
PID 1140 wrote to memory of 1112	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	99
PID 1140 wrote to memory of 1112	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	99
PID 1112 wrote to memory of 5280	1112	cmd.exe	100
PID 1112 wrote to memory of 5280	1112	cmd.exe	100
PID 5280 wrote to memory of 4812	5280	cmd.exe	101
PID 5280 wrote to memory of 4812	5280	cmd.exe	101
PID 1140 wrote to memory of 4828	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	102
PID 1140 wrote to memory of 4828	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	102
PID 4828 wrote to memory of 4584	4828	cmd.exe	103
PID 4828 wrote to memory of 4584	4828	cmd.exe	103
PID 4584 wrote to memory of 4444	4584	cmd.exe	104
PID 4584 wrote to memory of 4444	4584	cmd.exe	104
PID 1140 wrote to memory of 4460	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	105
PID 1140 wrote to memory of 4460	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	105
PID 4460 wrote to memory of 4428	4460	cmd.exe	106
PID 4460 wrote to memory of 4428	4460	cmd.exe	106
PID 4428 wrote to memory of 4464	4428	cmd.exe	107
PID 4428 wrote to memory of 4464	4428	cmd.exe	107
PID 1140 wrote to memory of 4596	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	108
PID 1140 wrote to memory of 4596	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	108
PID 4596 wrote to memory of 4612	4596	cmd.exe	109
PID 4596 wrote to memory of 4612	4596	cmd.exe	109
PID 4612 wrote to memory of 4628	4612	cmd.exe	110
PID 4612 wrote to memory of 4628	4612	cmd.exe	110
PID 1140 wrote to memory of 4188	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	111
PID 1140 wrote to memory of 4188	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	111
PID 4188 wrote to memory of 5524	4188	cmd.exe	112
PID 4188 wrote to memory of 5524	4188	cmd.exe	112
PID 5524 wrote to memory of 4360	5524	cmd.exe	113
PID 5524 wrote to memory of 4360	5524	cmd.exe	113
PID 1140 wrote to memory of 1576	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	114
PID 1140 wrote to memory of 1576	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	114
PID 1576 wrote to memory of 5584	1576	cmd.exe	115
PID 1576 wrote to memory of 5584	1576	cmd.exe	115
PID 5584 wrote to memory of 4616	5584	cmd.exe	116
PID 5584 wrote to memory of 4616	5584	cmd.exe	116
PID 1140 wrote to memory of 5808	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	117
PID 1140 wrote to memory of 5808	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	117
PID 5808 wrote to memory of 4344	5808	cmd.exe	118
PID 5808 wrote to memory of 4344	5808	cmd.exe	118
PID 4344 wrote to memory of 5288	4344	cmd.exe	119
PID 4344 wrote to memory of 5288	4344	cmd.exe	119
PID 1140 wrote to memory of 4500	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	120
PID 1140 wrote to memory of 4500	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	120
PID 4500 wrote to memory of 1588	4500	cmd.exe	121
PID 4500 wrote to memory of 1588	4500	cmd.exe	121
PID 1140 wrote to memory of 4680	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	122
PID 1140 wrote to memory of 4680	1140	67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe	122
PID 4680 wrote to memory of 4368	4680	cmd.exe	123
PID 4680 wrote to memory of 4368	4680	cmd.exe	123
PID 4368 wrote to memory of 5668	4368	cmd.exe	124
PID 4368 wrote to memory of 5668	4368	cmd.exe	124

C:\Users\Admin\AppData\Local\Temp\67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe
"C:\Users\Admin\AppData\Local\Temp\67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1140
- 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:5540
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2228
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
      4⤵
      PID:4128
- 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:1112
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5280
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
      4⤵
      PID:4812
- 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:4828
- - 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:4584
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:4444
- 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:4460
- - 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:4428
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:4464
- 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:4596
- - 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:4612
  - - 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:4628
- 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:4188
- - 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:5524
  - - 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:4360
- 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:1576
- - 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:5584
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:4616
- 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:5808
- - 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:4344
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:5288
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c rundll32.exe user32.dll,UpdatePerUserSystemParameters
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4500
- - C:\Windows\system32\rundll32.exe
    rundll32.exe user32.dll,UpdatePerUserSystemParameters
    3⤵
    PID:1588
- 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\67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe" -ErrorAction SilentlyContinue;
  2⤵
  - Hide Artifacts: Hidden Window
  - Hide Artifacts: Ignore Process Interrupts
  - Suspicious use of WriteProcessMemory
  PID:4680
- - 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\67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe" -ErrorAction SilentlyContinue;
    3⤵
    - Hide Artifacts: Hidden Window
    - Hide Artifacts: Ignore Process Interrupts
    - Suspicious use of WriteProcessMemory
    PID:4368
  - - 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\67a78b39e760e3460a135a7e4fa096ab6ce6b013658103890c866d9401928ba5.exe" -ErrorAction SilentlyContinue;
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:5668

Network

MITRE ATT&CK Enterprise v16

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aola3ydj.sur.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1140-1195-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/1140-1221-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/1140-1222-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/1140-1223-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/5668-1229-0x000001B439CD0000-0x000001B439CF2000-memory.dmp

Filesize
136KB

Download