a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6

Analysis

max time kernel
118s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
28/06/2023, 12:33

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General

Target

a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
Size

1.2MB
MD5

0c8e88877383ccd23a755f429006b437
SHA1

69b3d913a3967153d1e91ba1a31ebed839b297ed
SHA256

a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6
SHA512

ba5296a84b7107b293d1afd4752157edaa1a3f1059685ecad2ddea9b9221ee9c8092ce5cae6f2f6a4866e25ca0bf66dd3fbc0786b2a26cb708d2cd536dd85041
SSDEEP

24576:utP7hdO1s6Skscec1SgnyN9HPFCCNhQI6GOfaFVIVrYwcMavDiZn3m75/J7:gLO1qkscec0gnyN9HPFCCNSI6GOfaFVp

Score

9^/10

ransomware spyware stealer

Malware Config

Signatures

Renames multiple (1560) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Modifies extensions of user files 8 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\MountCompare.tiff => C:\Users\Admin\Pictures\MountCompare.tiff.rhysida	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
File renamed	C:\Users\Admin\Pictures\MountCompare.tiff.rhysida => C:\Users\Admin\Pictures\MountCompare.tiff	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
File renamed	C:\Users\Admin\Pictures\DisconnectUnprotect.raw => C:\Users\Admin\Pictures\DisconnectUnprotect.raw.rhysida	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
File renamed	C:\Users\Admin\Pictures\GrantCheckpoint.png => C:\Users\Admin\Pictures\GrantCheckpoint.png.rhysida	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
File renamed	C:\Users\Admin\Pictures\EditUnregister.crw => C:\Users\Admin\Pictures\EditUnregister.crw.rhysida	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
File renamed	C:\Users\Admin\Pictures\PublishGrant.png => C:\Users\Admin\Pictures\PublishGrant.png.rhysida	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
File renamed	C:\Users\Admin\Pictures\SetRestore.raw => C:\Users\Admin\Pictures\SetRestore.raw.rhysida	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
File renamed	C:\Users\Admin\Pictures\PingSelect.tif => C:\Users\Admin\Pictures\PingSelect.tif.rhysida	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe

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
T1081

Drops file in System32 directory 8 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{E09703CA-CD13-42C4-8DA0-AFAE1C7E40D3}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{1FF9495B-6789-4F5D-BAFB-DCABDD3D5FC2}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{18D31A2E-F1FC-488A-A01D-3C9CD3B89523}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{42D8E0CC-1648-4B69-92DD-C2710DC9B4E8}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{4C3A1DC5-FB7E-4292-BFDC-E0D9A7EA63D0}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{82FFD391-C08E-4F68-95FA-0680502266C3}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{192F7388-283D-4EF3-9768-43FDB085FF10}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{88679D6B-C4F6-48D4-9D24-C50A3B7586DB}.catalogItem	svchost.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Public\\bg.jpg"	reg.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3904	powershell.exe
3904	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3904	powershell.exe

Suspicious use of WriteProcessMemory 58 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 4668	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	92
PID 1452 wrote to memory of 4668	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	92
PID 4668 wrote to memory of 1308	4668	cmd.exe	93
PID 4668 wrote to memory of 1308	4668	cmd.exe	93
PID 1308 wrote to memory of 4928	1308	cmd.exe	94
PID 1308 wrote to memory of 4928	1308	cmd.exe	94
PID 1452 wrote to memory of 4820	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	95
PID 1452 wrote to memory of 4820	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	95
PID 4820 wrote to memory of 1768	4820	cmd.exe	96
PID 4820 wrote to memory of 1768	4820	cmd.exe	96
PID 1768 wrote to memory of 2624	1768	cmd.exe	97
PID 1768 wrote to memory of 2624	1768	cmd.exe	97
PID 1452 wrote to memory of 3996	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	98
PID 1452 wrote to memory of 3996	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	98
PID 3996 wrote to memory of 4972	3996	cmd.exe	99
PID 3996 wrote to memory of 4972	3996	cmd.exe	99
PID 4972 wrote to memory of 5088	4972	cmd.exe	100
PID 4972 wrote to memory of 5088	4972	cmd.exe	100
PID 1452 wrote to memory of 2628	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	101
PID 1452 wrote to memory of 2628	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	101
PID 2628 wrote to memory of 3608	2628	cmd.exe	102
PID 2628 wrote to memory of 3608	2628	cmd.exe	102
PID 3608 wrote to memory of 2152	3608	cmd.exe	103
PID 3608 wrote to memory of 2152	3608	cmd.exe	103
PID 1452 wrote to memory of 2228	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	104
PID 1452 wrote to memory of 2228	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	104
PID 2228 wrote to memory of 3764	2228	cmd.exe	105
PID 2228 wrote to memory of 3764	2228	cmd.exe	105
PID 3764 wrote to memory of 1844	3764	cmd.exe	106
PID 3764 wrote to memory of 1844	3764	cmd.exe	106
PID 1452 wrote to memory of 3000	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	107
PID 1452 wrote to memory of 3000	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	107
PID 3000 wrote to memory of 2864	3000	cmd.exe	108
PID 3000 wrote to memory of 2864	3000	cmd.exe	108
PID 2864 wrote to memory of 1200	2864	cmd.exe	109
PID 2864 wrote to memory of 1200	2864	cmd.exe	109
PID 1452 wrote to memory of 320	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	110
PID 1452 wrote to memory of 320	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	110
PID 320 wrote to memory of 1816	320	cmd.exe	111
PID 320 wrote to memory of 1816	320	cmd.exe	111
PID 1816 wrote to memory of 4664	1816	cmd.exe	112
PID 1816 wrote to memory of 4664	1816	cmd.exe	112
PID 1452 wrote to memory of 4672	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	113
PID 1452 wrote to memory of 4672	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	113
PID 4672 wrote to memory of 4640	4672	cmd.exe	114
PID 4672 wrote to memory of 4640	4672	cmd.exe	114
PID 4640 wrote to memory of 3912	4640	cmd.exe	115
PID 4640 wrote to memory of 3912	4640	cmd.exe	115
PID 1452 wrote to memory of 1952	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	116
PID 1452 wrote to memory of 1952	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	116
PID 1952 wrote to memory of 664	1952	cmd.exe	117
PID 1952 wrote to memory of 664	1952	cmd.exe	117
PID 1452 wrote to memory of 4064	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	118
PID 1452 wrote to memory of 4064	1452	a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe	118
PID 4064 wrote to memory of 3616	4064	cmd.exe	119
PID 4064 wrote to memory of 3616	4064	cmd.exe	119
PID 3616 wrote to memory of 3904	3616	cmd.exe	120
PID 3616 wrote to memory of 3904	3616	cmd.exe	120

C:\Users\Admin\AppData\Local\Temp\a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe
"C:\Users\Admin\AppData\Local\Temp\a864282fea5a536510ae86c77ce46f7827687783628e4f2ceb5bf2c41b8cd3c6.exe"
1⤵
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:1452
- 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:4668
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1308
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
      4⤵
      PID:4928
- 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:4820
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1768
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
      4⤵
      PID:2624
- 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:3996
- - 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:4972
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:5088
- 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:2628
- - 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:3608
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:2152
- 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:2228
- - 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:3764
  - - 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:1844
- 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:3000
- - 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:2864
  - - 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:1200
- 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:320
- - 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:1816
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:4664
- 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:4672
- - 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:4640
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:3912
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c rundll32.exe user32.dll,UpdatePerUserSystemParameters
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1952
- - C:\Windows\system32\rundll32.exe
    rundll32.exe user32.dll,UpdatePerUserSystemParameters
    3⤵
    PID:664
- 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⤵
  - Suspicious use of WriteProcessMemory
  PID:4064
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:3616
  - - 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:3904

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
PID:1932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

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\Local\Temp\__PSScriptPolicyTest_vvo0vqmr.frf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1452-600-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/1452-601-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/1452-602-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/1452-603-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/3904-610-0x000001A82E170000-0x000001A82E192000-memory.dmp

Filesize
136KB

Download
memory/3904-614-0x000001A8464B0000-0x000001A8464C0000-memory.dmp

Filesize
64KB

Download
memory/3904-615-0x000001A8464B0000-0x000001A8464C0000-memory.dmp

Filesize
64KB

Download
memory/3904-616-0x000001A8464B0000-0x000001A8464C0000-memory.dmp

Filesize
64KB

Download