cea5e345ee085bce7280397205d0c5e9488b5e3ffcb396a2333a745c46baf759

Analysis

max time kernel
122s
max time network
132s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-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 (678) 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-1-5-21-1154728922-3261336865-3456416385-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Public\\bg.jpg"	reg.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2448	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 624	2880	sample.exe	30
PID 2880 wrote to memory of 624	2880	sample.exe	30
PID 2880 wrote to memory of 624	2880	sample.exe	30
PID 624 wrote to memory of 1408	624	cmd.exe	31
PID 624 wrote to memory of 1408	624	cmd.exe	31
PID 624 wrote to memory of 1408	624	cmd.exe	31
PID 1408 wrote to memory of 3052	1408	cmd.exe	32
PID 1408 wrote to memory of 3052	1408	cmd.exe	32
PID 1408 wrote to memory of 3052	1408	cmd.exe	32
PID 2880 wrote to memory of 1464	2880	sample.exe	33
PID 2880 wrote to memory of 1464	2880	sample.exe	33
PID 2880 wrote to memory of 1464	2880	sample.exe	33
PID 1464 wrote to memory of 276	1464	cmd.exe	34
PID 1464 wrote to memory of 276	1464	cmd.exe	34
PID 1464 wrote to memory of 276	1464	cmd.exe	34
PID 276 wrote to memory of 1808	276	cmd.exe	35
PID 276 wrote to memory of 1808	276	cmd.exe	35
PID 276 wrote to memory of 1808	276	cmd.exe	35
PID 2880 wrote to memory of 1708	2880	sample.exe	36
PID 2880 wrote to memory of 1708	2880	sample.exe	36
PID 2880 wrote to memory of 1708	2880	sample.exe	36
PID 1708 wrote to memory of 304	1708	cmd.exe	37
PID 1708 wrote to memory of 304	1708	cmd.exe	37
PID 1708 wrote to memory of 304	1708	cmd.exe	37
PID 304 wrote to memory of 2452	304	cmd.exe	38
PID 304 wrote to memory of 2452	304	cmd.exe	38
PID 304 wrote to memory of 2452	304	cmd.exe	38
PID 2880 wrote to memory of 2224	2880	sample.exe	39
PID 2880 wrote to memory of 2224	2880	sample.exe	39
PID 2880 wrote to memory of 2224	2880	sample.exe	39
PID 2224 wrote to memory of 2168	2224	cmd.exe	40
PID 2224 wrote to memory of 2168	2224	cmd.exe	40
PID 2224 wrote to memory of 2168	2224	cmd.exe	40
PID 2168 wrote to memory of 2400	2168	cmd.exe	41
PID 2168 wrote to memory of 2400	2168	cmd.exe	41
PID 2168 wrote to memory of 2400	2168	cmd.exe	41
PID 2880 wrote to memory of 108	2880	sample.exe	42
PID 2880 wrote to memory of 108	2880	sample.exe	42
PID 2880 wrote to memory of 108	2880	sample.exe	42
PID 108 wrote to memory of 2456	108	cmd.exe	43
PID 108 wrote to memory of 2456	108	cmd.exe	43
PID 108 wrote to memory of 2456	108	cmd.exe	43
PID 2456 wrote to memory of 1796	2456	cmd.exe	44
PID 2456 wrote to memory of 1796	2456	cmd.exe	44
PID 2456 wrote to memory of 1796	2456	cmd.exe	44
PID 2880 wrote to memory of 1792	2880	sample.exe	45
PID 2880 wrote to memory of 1792	2880	sample.exe	45
PID 2880 wrote to memory of 1792	2880	sample.exe	45
PID 1792 wrote to memory of 876	1792	cmd.exe	46
PID 1792 wrote to memory of 876	1792	cmd.exe	46
PID 1792 wrote to memory of 876	1792	cmd.exe	46
PID 876 wrote to memory of 272	876	cmd.exe	47
PID 876 wrote to memory of 272	876	cmd.exe	47
PID 876 wrote to memory of 272	876	cmd.exe	47
PID 2880 wrote to memory of 2116	2880	sample.exe	48
PID 2880 wrote to memory of 2116	2880	sample.exe	48
PID 2880 wrote to memory of 2116	2880	sample.exe	48
PID 2116 wrote to memory of 1192	2116	cmd.exe	49
PID 2116 wrote to memory of 1192	2116	cmd.exe	49
PID 2116 wrote to memory of 1192	2116	cmd.exe	49
PID 1192 wrote to memory of 2528	1192	cmd.exe	50
PID 1192 wrote to memory of 2528	1192	cmd.exe	50
PID 1192 wrote to memory of 2528	1192	cmd.exe	50
PID 2880 wrote to memory of 2640	2880	sample.exe	51

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2880
- 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:624
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1408
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v Wallpaper /f
      4⤵
      PID:3052
- 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:1464
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:276
  - - C:\Windows\system32\reg.exe
      reg delete "HKCU\Conttol Panel\Desktop" /v WallpaperStyle /f
      4⤵
      PID:1808
- 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:1708
- - 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:304
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:2452
- 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:2224
- - 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:2168
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop" /v NoChangingWallPaper /t REG_SZ /d 1 /f
      4⤵
      PID:2400
- 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:108
- - 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:2456
  - - 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:1796
- 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:1792
- - 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:876
  - - 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:272
- 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:2116
- - 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:1192
  - - C:\Windows\system32\reg.exe
      reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:2528
- 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:2640
- - C:\Windows\system32\cmd.exe
    cmd.exe /c reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
    3⤵
    PID:1536
  - - C:\Windows\system32\reg.exe
      reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f
      4⤵
      PID:2128
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c rundll32.exe user32.dll,UpdatePerUserSystemParameters
  2⤵
  PID:1572
- - C:\Windows\system32\rundll32.exe
    rundll32.exe user32.dll,UpdatePerUserSystemParameters
    3⤵
    PID:2408
- 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⤵
  PID:2344
- - 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⤵
    PID:2164
  - - 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:2448

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/2448-716-0x0000000002320000-0x0000000002328000-memory.dmp

Filesize
32KB

Download
memory/2448-715-0x000007FEF5760000-0x000007FEF60FD000-memory.dmp

Filesize
9.6MB

Download
memory/2448-714-0x000000001B430000-0x000000001B712000-memory.dmp

Filesize
2.9MB

Download
memory/2448-717-0x000007FEF5760000-0x000007FEF60FD000-memory.dmp

Filesize
9.6MB

Download
memory/2448-718-0x0000000002980000-0x0000000002A00000-memory.dmp

Filesize
512KB

Download
memory/2448-720-0x0000000002980000-0x0000000002A00000-memory.dmp

Filesize
512KB

Download
memory/2448-719-0x0000000002980000-0x0000000002A00000-memory.dmp

Filesize
512KB

Download
memory/2448-721-0x0000000002980000-0x0000000002A00000-memory.dmp

Filesize
512KB

Download
memory/2448-722-0x000007FEF5760000-0x000007FEF60FD000-memory.dmp

Filesize
9.6MB

Download
memory/2880-707-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/2880-708-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/2880-709-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download