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
260s
max time network
121s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
19/11/2023, 08:48

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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/2780-686-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida
behavioral1/memory/2780-687-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida
behavioral1/memory/2780-688-0x0000000000400000-0x0000000000522000-memory.dmp	family_rhysida

Rhysida
Rhysida is a ransomware that is written in C++ and discovered in 2023.
ransomware rhysida
Renames multiple (656) 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-1-5-21-3425689832-2386927309-2650718742-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Public\\bg.jpg"	reg.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1604	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1604	powershell.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2272	AcroRd32.exe
2272	AcroRd32.exe
2272	AcroRd32.exe
2272	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 2152	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	30
PID 2780 wrote to memory of 2152	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	30
PID 2780 wrote to memory of 2152	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	30
PID 2152 wrote to memory of 2328	2152	cmd.exe	31
PID 2152 wrote to memory of 2328	2152	cmd.exe	31
PID 2152 wrote to memory of 2328	2152	cmd.exe	31
PID 2328 wrote to memory of 592	2328	cmd.exe	32
PID 2328 wrote to memory of 592	2328	cmd.exe	32
PID 2328 wrote to memory of 592	2328	cmd.exe	32
PID 2780 wrote to memory of 2148	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	33
PID 2780 wrote to memory of 2148	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	33
PID 2780 wrote to memory of 2148	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	33
PID 2148 wrote to memory of 1196	2148	cmd.exe	34
PID 2148 wrote to memory of 1196	2148	cmd.exe	34
PID 2148 wrote to memory of 1196	2148	cmd.exe	34
PID 1196 wrote to memory of 1560	1196	cmd.exe	35
PID 1196 wrote to memory of 1560	1196	cmd.exe	35
PID 1196 wrote to memory of 1560	1196	cmd.exe	35
PID 2780 wrote to memory of 1460	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	36
PID 2780 wrote to memory of 1460	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	36
PID 2780 wrote to memory of 1460	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	36
PID 1460 wrote to memory of 1956	1460	cmd.exe	37
PID 1460 wrote to memory of 1956	1460	cmd.exe	37
PID 1460 wrote to memory of 1956	1460	cmd.exe	37
PID 1956 wrote to memory of 2136	1956	cmd.exe	38
PID 1956 wrote to memory of 2136	1956	cmd.exe	38
PID 1956 wrote to memory of 2136	1956	cmd.exe	38
PID 2780 wrote to memory of 2124	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	39
PID 2780 wrote to memory of 2124	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	39
PID 2780 wrote to memory of 2124	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	39
PID 2124 wrote to memory of 2900	2124	cmd.exe	40
PID 2124 wrote to memory of 2900	2124	cmd.exe	40
PID 2124 wrote to memory of 2900	2124	cmd.exe	40
PID 2900 wrote to memory of 2504	2900	cmd.exe	41
PID 2900 wrote to memory of 2504	2900	cmd.exe	41
PID 2900 wrote to memory of 2504	2900	cmd.exe	41
PID 2780 wrote to memory of 1772	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	42
PID 2780 wrote to memory of 1772	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	42
PID 2780 wrote to memory of 1772	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	42
PID 1772 wrote to memory of 2280	1772	cmd.exe	43
PID 1772 wrote to memory of 2280	1772	cmd.exe	43
PID 1772 wrote to memory of 2280	1772	cmd.exe	43
PID 2280 wrote to memory of 1948	2280	cmd.exe	44
PID 2280 wrote to memory of 1948	2280	cmd.exe	44
PID 2280 wrote to memory of 1948	2280	cmd.exe	44
PID 2780 wrote to memory of 2260	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	45
PID 2780 wrote to memory of 2260	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	45
PID 2780 wrote to memory of 2260	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	45
PID 2260 wrote to memory of 1508	2260	cmd.exe	47
PID 2260 wrote to memory of 1508	2260	cmd.exe	47
PID 2260 wrote to memory of 1508	2260	cmd.exe	47
PID 1508 wrote to memory of 1120	1508	cmd.exe	46
PID 1508 wrote to memory of 1120	1508	cmd.exe	46
PID 1508 wrote to memory of 1120	1508	cmd.exe	46
PID 2780 wrote to memory of 3012	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	48
PID 2780 wrote to memory of 3012	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	48
PID 2780 wrote to memory of 3012	2780	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	48
PID 3012 wrote to memory of 1436	3012	cmd.exe	49
PID 3012 wrote to memory of 1436	3012	cmd.exe	49
PID 3012 wrote to memory of 1436	3012	cmd.exe	49
PID 1436 wrote to memory of 1696	1436	cmd.exe	50
PID 1436 wrote to memory of 1696	1436	cmd.exe	50
PID 1436 wrote to memory of 1696	1436	cmd.exe	50
PID 2780 wrote to memory of 2100	2780	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:2780
- 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:2152
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2328
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
      4⤵
      PID:592
- 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:2148
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1196
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
      4⤵
      PID:1560
- 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:1460
- - 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:1956
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:2136
- 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:2124
- - 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:2900
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:2504
- 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:1772
- - 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:2280
  - - 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:1948
- 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:2260
- - 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:1508
- 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:3012
- - 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:1436
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:1696
- 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:2100
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
    3⤵
    PID:2188
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:2456
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c rundll32.exe user32.dll,UpdatePerUserSystemParameters
  2⤵
  PID:2008
- - C:\Windows\system32\rundll32.exe
    rundll32.exe user32.dll,UpdatePerUserSystemParameters
    3⤵
    PID:2884
- 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:1104
- - 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:2460
  - - 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:1604

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
1⤵
PID:1120

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\Desktop\CriticalBreachDetected.pdf"
1⤵
- Suspicious use of SetWindowsHookEx
PID:2272

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

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
fc5295e45a1039991a1d25e56bb0cf97

SHA1
a5c7cb403299d9613f88f3fcd49df93dd8aa2756

SHA256
777e679deea2ebb779c24e7fa027f0de6eaa3fe779f2cf236854ce515b7fa4e6

SHA512
094fdb406d05d89437df14bdc102925036a72bc59d0742ab7a0d4056f002e5368d60c5284fe33b25524aa0deb3ff781d108fee891a8d7fc0ea1e83e1381814d1

Download Submit
C:\Users\Admin\Desktop\CriticalBreachDetected.pdf

Filesize
34KB

MD5
1d46ad90f66560050686f1dda381a6af

SHA1
399e868c010a0453fd19c39ab7ddbd0294258ca9

SHA256
d16fffe21e66ae6b976c4ea7c8fcd37ca7b624961430144117eaa989e02fced1

SHA512
96af5adecd5aea2a38272c47fa4c256ad0e8986a7bab34e9b132610db8c90005d65984dcb7e93d24366c91c3f23442f623340dd14d4eba3de1fb0d7a737c9e6f

Download Submit
memory/1604-697-0x0000000002800000-0x0000000002880000-memory.dmp

Filesize
512KB

Download
memory/1604-693-0x000000001B260000-0x000000001B542000-memory.dmp

Filesize
2.9MB

Download
memory/1604-698-0x0000000002800000-0x0000000002880000-memory.dmp

Filesize
512KB

Download
memory/1604-699-0x000007FEF4FF0000-0x000007FEF598D000-memory.dmp

Filesize
9.6MB

Download
memory/1604-696-0x0000000002800000-0x0000000002880000-memory.dmp

Filesize
512KB

Download
memory/1604-695-0x0000000002490000-0x0000000002498000-memory.dmp

Filesize
32KB

Download
memory/1604-694-0x000007FEF4FF0000-0x000007FEF598D000-memory.dmp

Filesize
9.6MB

Download
memory/1604-700-0x0000000002800000-0x0000000002880000-memory.dmp

Filesize
512KB

Download
memory/1604-701-0x000007FEF4FF0000-0x000007FEF598D000-memory.dmp

Filesize
9.6MB

Download
memory/2780-686-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/2780-688-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/2780-687-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download