cea5e345ee085bce7280397205d0c5e9488b5e3ffcb396a2333a745c46baf759

Analysis

max time kernel
139s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
02/11/2023, 05:58

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General

Target

sample.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 (1489) 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-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Public\\bg.jpg"	reg.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3684	powershell.exe
3684	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3684	powershell.exe

Suspicious use of WriteProcessMemory 58 IoCs

description	pid	Process	procid_target
PID 3824 wrote to memory of 4988	3824	sample.exe	108
PID 3824 wrote to memory of 4988	3824	sample.exe	108
PID 4988 wrote to memory of 568	4988	cmd.exe	109
PID 4988 wrote to memory of 568	4988	cmd.exe	109
PID 568 wrote to memory of 3040	568	cmd.exe	110
PID 568 wrote to memory of 3040	568	cmd.exe	110
PID 3824 wrote to memory of 1504	3824	sample.exe	111
PID 3824 wrote to memory of 1504	3824	sample.exe	111
PID 1504 wrote to memory of 4092	1504	cmd.exe	112
PID 1504 wrote to memory of 4092	1504	cmd.exe	112
PID 4092 wrote to memory of 3340	4092	cmd.exe	113
PID 4092 wrote to memory of 3340	4092	cmd.exe	113
PID 3824 wrote to memory of 1652	3824	sample.exe	114
PID 3824 wrote to memory of 1652	3824	sample.exe	114
PID 1652 wrote to memory of 1492	1652	cmd.exe	115
PID 1652 wrote to memory of 1492	1652	cmd.exe	115
PID 1492 wrote to memory of 4852	1492	cmd.exe	116
PID 1492 wrote to memory of 4852	1492	cmd.exe	116
PID 3824 wrote to memory of 1336	3824	sample.exe	117
PID 3824 wrote to memory of 1336	3824	sample.exe	117
PID 1336 wrote to memory of 4560	1336	cmd.exe	118
PID 1336 wrote to memory of 4560	1336	cmd.exe	118
PID 4560 wrote to memory of 1480	4560	cmd.exe	119
PID 4560 wrote to memory of 1480	4560	cmd.exe	119
PID 3824 wrote to memory of 3980	3824	sample.exe	120
PID 3824 wrote to memory of 3980	3824	sample.exe	120
PID 3980 wrote to memory of 1228	3980	cmd.exe	121
PID 3980 wrote to memory of 1228	3980	cmd.exe	121
PID 1228 wrote to memory of 4204	1228	cmd.exe	122
PID 1228 wrote to memory of 4204	1228	cmd.exe	122
PID 3824 wrote to memory of 4364	3824	sample.exe	123
PID 3824 wrote to memory of 4364	3824	sample.exe	123
PID 4364 wrote to memory of 3448	4364	cmd.exe	124
PID 4364 wrote to memory of 3448	4364	cmd.exe	124
PID 3448 wrote to memory of 4292	3448	cmd.exe	125
PID 3448 wrote to memory of 4292	3448	cmd.exe	125
PID 3824 wrote to memory of 3060	3824	sample.exe	126
PID 3824 wrote to memory of 3060	3824	sample.exe	126
PID 3060 wrote to memory of 5056	3060	cmd.exe	127
PID 3060 wrote to memory of 5056	3060	cmd.exe	127
PID 5056 wrote to memory of 3796	5056	cmd.exe	128
PID 5056 wrote to memory of 3796	5056	cmd.exe	128
PID 3824 wrote to memory of 808	3824	sample.exe	129
PID 3824 wrote to memory of 808	3824	sample.exe	129
PID 808 wrote to memory of 3172	808	cmd.exe	130
PID 808 wrote to memory of 3172	808	cmd.exe	130
PID 3172 wrote to memory of 2252	3172	cmd.exe	131
PID 3172 wrote to memory of 2252	3172	cmd.exe	131
PID 3824 wrote to memory of 1476	3824	sample.exe	132
PID 3824 wrote to memory of 1476	3824	sample.exe	132
PID 1476 wrote to memory of 1340	1476	cmd.exe	133
PID 1476 wrote to memory of 1340	1476	cmd.exe	133
PID 3824 wrote to memory of 2264	3824	sample.exe	134
PID 3824 wrote to memory of 2264	3824	sample.exe	134
PID 2264 wrote to memory of 856	2264	cmd.exe	135
PID 2264 wrote to memory of 856	2264	cmd.exe	135
PID 856 wrote to memory of 3684	856	cmd.exe	136
PID 856 wrote to memory of 3684	856	cmd.exe	136

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3824
- 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:4988
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:568
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
      4⤵
      PID:3040
- 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:1504
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4092
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
      4⤵
      PID:3340
- 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:1652
- - 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:1492
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:4852
- 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:1336
- - 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:4560
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:1480
- 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:3980
- - 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:1228
  - - 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:4204
- 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:4364
- - 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:3448
  - - 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:4292
- 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:3060
- - 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:5056
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:3796
- 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:808
- - 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:3172
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:2252
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c rundll32.exe user32.dll,UpdatePerUserSystemParameters
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1476
- - C:\Windows\system32\rundll32.exe
    rundll32.exe user32.dll,UpdatePerUserSystemParameters
    3⤵
    PID:1340
- 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\sample.exe" -ErrorAction SilentlyContinue;
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2264
- - 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\sample.exe" -ErrorAction SilentlyContinue;
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:856
  - - 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\sample.exe" -ErrorAction SilentlyContinue;
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3684

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\Local\Temp\__PSScriptPolicyTest_i021ek15.wsr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3684-581-0x0000016C3E240000-0x0000016C3E262000-memory.dmp

Filesize
136KB

Download
memory/3684-582-0x00007FF94E810000-0x00007FF94F2D1000-memory.dmp

Filesize
10.8MB

Download
memory/3684-583-0x0000016C3D750000-0x0000016C3D760000-memory.dmp

Filesize
64KB

Download
memory/3684-586-0x00007FF94E810000-0x00007FF94F2D1000-memory.dmp

Filesize
10.8MB

Download
memory/3824-130-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/3824-337-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/3824-567-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/3824-568-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/3824-569-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/3824-570-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/3824-571-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download