rhysida | 687459d587df273184469f7e707c0e5db8fe4e3d4b15756d666891127851680b

Resubmissions

18/09/2024, 11:32

240918-nnb8pazajl 10

19/11/2023, 08:48

19/11/2023, 08:33

19/11/2023, 08:31

16/11/2023, 13:30

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
19/11/2023, 08:31

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Report Analysis Logs

General

Target

a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
Size

1.2MB
MD5

0c8e88877383ccd23a755f429006b437
SHA1

69b3d913a3967153d1e91ba1a31ebed839b297ed
SHA256

a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6
SHA512

ba5296a84b7107b293d1afd4752157edaa1a3f1059685ecad2ddea9b9221ee9c8092ce5cae6f2f6a4866e25ca0bf66dd3fbc0786b2a26cb708d2cd536dd85041
SSDEEP

24576:utP7hdO1s6Skscec1SgnyN9HPFCCNhQI6GOfaFVIVrYwcMavDiZn3m75/J7:gLO1qkscec0gnyN9HPFCCNSI6GOfaFVp

Score

10^/10

rhysida ransomware spyware stealer

Malware Config

Signatures

Detect Rhysida ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2180-691-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida
behavioral1/memory/2180-692-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida
behavioral1/memory/2180-693-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida

Rhysida
Rhysida is a ransomware that is written in C++ and discovered in 2023.
ransomware rhysida
Renames multiple (661) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Reads user/profile data of web browsers 2 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

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Public\\bg.jpg"	reg.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1580	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1580	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 952	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	30
PID 2180 wrote to memory of 952	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	30
PID 2180 wrote to memory of 952	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	30
PID 952 wrote to memory of 940	952	cmd.exe	31
PID 952 wrote to memory of 940	952	cmd.exe	31
PID 952 wrote to memory of 940	952	cmd.exe	31
PID 940 wrote to memory of 560	940	cmd.exe	32
PID 940 wrote to memory of 560	940	cmd.exe	32
PID 940 wrote to memory of 560	940	cmd.exe	32
PID 2180 wrote to memory of 696	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	33
PID 2180 wrote to memory of 696	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	33
PID 2180 wrote to memory of 696	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	33
PID 696 wrote to memory of 3052	696	cmd.exe	34
PID 696 wrote to memory of 3052	696	cmd.exe	34
PID 696 wrote to memory of 3052	696	cmd.exe	34
PID 3052 wrote to memory of 2124	3052	cmd.exe	35
PID 3052 wrote to memory of 2124	3052	cmd.exe	35
PID 3052 wrote to memory of 2124	3052	cmd.exe	35
PID 2180 wrote to memory of 884	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	36
PID 2180 wrote to memory of 884	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	36
PID 2180 wrote to memory of 884	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	36
PID 884 wrote to memory of 1900	884	cmd.exe	37
PID 884 wrote to memory of 1900	884	cmd.exe	37
PID 884 wrote to memory of 1900	884	cmd.exe	37
PID 1900 wrote to memory of 2088	1900	cmd.exe	38
PID 1900 wrote to memory of 2088	1900	cmd.exe	38
PID 1900 wrote to memory of 2088	1900	cmd.exe	38
PID 2180 wrote to memory of 1672	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	39
PID 2180 wrote to memory of 1672	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	39
PID 2180 wrote to memory of 1672	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	39
PID 1672 wrote to memory of 1772	1672	cmd.exe	40
PID 1672 wrote to memory of 1772	1672	cmd.exe	40
PID 1672 wrote to memory of 1772	1672	cmd.exe	40
PID 1772 wrote to memory of 1192	1772	cmd.exe	41
PID 1772 wrote to memory of 1192	1772	cmd.exe	41
PID 1772 wrote to memory of 1192	1772	cmd.exe	41
PID 2180 wrote to memory of 836	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	42
PID 2180 wrote to memory of 836	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	42
PID 2180 wrote to memory of 836	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	42
PID 836 wrote to memory of 2012	836	cmd.exe	43
PID 836 wrote to memory of 2012	836	cmd.exe	43
PID 836 wrote to memory of 2012	836	cmd.exe	43
PID 2012 wrote to memory of 1120	2012	cmd.exe	44
PID 2012 wrote to memory of 1120	2012	cmd.exe	44
PID 2012 wrote to memory of 1120	2012	cmd.exe	44
PID 2180 wrote to memory of 2064	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	45
PID 2180 wrote to memory of 2064	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	45
PID 2180 wrote to memory of 2064	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	45
PID 2064 wrote to memory of 2400	2064	cmd.exe	46
PID 2064 wrote to memory of 2400	2064	cmd.exe	46
PID 2064 wrote to memory of 2400	2064	cmd.exe	46
PID 2400 wrote to memory of 1748	2400	cmd.exe	47
PID 2400 wrote to memory of 1748	2400	cmd.exe	47
PID 2400 wrote to memory of 1748	2400	cmd.exe	47
PID 2180 wrote to memory of 2296	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	48
PID 2180 wrote to memory of 2296	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	48
PID 2180 wrote to memory of 2296	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	48
PID 2296 wrote to memory of 2544	2296	cmd.exe	49
PID 2296 wrote to memory of 2544	2296	cmd.exe	49
PID 2296 wrote to memory of 2544	2296	cmd.exe	49
PID 2544 wrote to memory of 876	2544	cmd.exe	50
PID 2544 wrote to memory of 876	2544	cmd.exe	50
PID 2544 wrote to memory of 876	2544	cmd.exe	50
PID 2180 wrote to memory of 2504	2180	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	51

C:\Users\Admin\AppData\Local\Temp\a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
"C:\Users\Admin\AppData\Local\Temp\a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2180
- 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:952
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:940
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
      4⤵
      PID:560
- 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:696
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3052
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
      4⤵
      PID:2124
- 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:884
- - 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:1900
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:2088
- 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:1672
- - 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:1772
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:1192
- 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:836
- - 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:2012
  - - 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:1120
- 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:2064
- - 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:2400
  - - 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:1748
- 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:2296
- - 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:2544
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:876
- 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⤵
  PID:2504
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
    3⤵
    PID:3056
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:2532
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c rundll32.exe user32.dll,UpdatePerUserSystemParameters
  2⤵
  PID:3064
- - C:\Windows\system32\rundll32.exe
    rundll32.exe user32.dll,UpdatePerUserSystemParameters
    3⤵
    PID:2056
- 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\a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe" -ErrorAction SilentlyContinue;
  2⤵
  PID:2040
- - 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\a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe" -ErrorAction SilentlyContinue;
    3⤵
    PID:1604
  - - 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\a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe" -ErrorAction SilentlyContinue;
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/1580-698-0x000000001B480000-0x000000001B762000-memory.dmp

Filesize
2.9MB

Download
memory/1580-699-0x0000000001DF0000-0x0000000001DF8000-memory.dmp

Filesize
32KB

Download
memory/1580-700-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

Filesize
9.6MB

Download
memory/1580-701-0x0000000002A10000-0x0000000002A90000-memory.dmp

Filesize
512KB

Download
memory/1580-702-0x0000000002A10000-0x0000000002A90000-memory.dmp

Filesize
512KB

Download
memory/1580-703-0x0000000002A10000-0x0000000002A90000-memory.dmp

Filesize
512KB

Download
memory/1580-704-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

Filesize
9.6MB

Download
memory/1580-705-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

Filesize
9.6MB

Download
memory/2180-691-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/2180-692-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/2180-693-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download