d261cc4cc40165817ae64ca19140e5c574f36d97c703165256e92e1df02becd0

Resubmissions

25-04-2023 20:18

230425-y3j7yscg23 10

Analysis

max time kernel
482s
max time network
487s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
25-04-2023 20:18

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General

Target

Executables/WALLPAPER.cmd
Size

2KB
MD5

a32722ee00e08c05a3effb3d1215baa9
SHA1

e480cef2dc06d46d5bb18d20c77cbf750a20ac45
SHA256

b98263cea6af6eea2d561c840cf14a1c775ec4e6bedeb975833889c51a9fe591
SHA512

6255ce91f4c1a7c9c325f1e0a0339791ae3ca8891a638def98042da627110524b5c19a1bc66b84121085f211d1162a81f6330e88b0539f5010fda2f0a1a2dd18

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Resources\Themes\aero.theme	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4284	powershell.exe
4284	powershell.exe
4196	powershell.exe
4196	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4284	powershell.exe
Token: SeDebugPrivilege	4196	powershell.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 1852	2000	cmd.exe	82
PID 2000 wrote to memory of 1852	2000	cmd.exe	82
PID 2000 wrote to memory of 2044	2000	cmd.exe	83
PID 2000 wrote to memory of 2044	2000	cmd.exe	83
PID 2000 wrote to memory of 4284	2000	cmd.exe	84
PID 2000 wrote to memory of 4284	2000	cmd.exe	84
PID 2000 wrote to memory of 1220	2000	cmd.exe	85
PID 2000 wrote to memory of 1220	2000	cmd.exe	85
PID 1220 wrote to memory of 2564	1220	cmd.exe	86
PID 1220 wrote to memory of 2564	1220	cmd.exe	86
PID 1220 wrote to memory of 1664	1220	cmd.exe	87
PID 1220 wrote to memory of 1664	1220	cmd.exe	87
PID 2000 wrote to memory of 3136	2000	cmd.exe	88
PID 2000 wrote to memory of 3136	2000	cmd.exe	88
PID 3136 wrote to memory of 2624	3136	cmd.exe	89
PID 3136 wrote to memory of 2624	3136	cmd.exe	89
PID 3136 wrote to memory of 4024	3136	cmd.exe	90
PID 3136 wrote to memory of 4024	3136	cmd.exe	90
PID 2000 wrote to memory of 1624	2000	cmd.exe	91
PID 2000 wrote to memory of 1624	2000	cmd.exe	91
PID 1624 wrote to memory of 3568	1624	cmd.exe	92
PID 1624 wrote to memory of 3568	1624	cmd.exe	92
PID 1624 wrote to memory of 32	1624	cmd.exe	93
PID 1624 wrote to memory of 32	1624	cmd.exe	93
PID 2000 wrote to memory of 216	2000	cmd.exe	94
PID 2000 wrote to memory of 216	2000	cmd.exe	94
PID 216 wrote to memory of 100	216	cmd.exe	95
PID 216 wrote to memory of 100	216	cmd.exe	95
PID 216 wrote to memory of 1420	216	cmd.exe	96
PID 216 wrote to memory of 1420	216	cmd.exe	96
PID 2000 wrote to memory of 4196	2000	cmd.exe	97
PID 2000 wrote to memory of 4196	2000	cmd.exe	97
PID 2000 wrote to memory of 2224	2000	cmd.exe	98
PID 2000 wrote to memory of 2224	2000	cmd.exe	98
PID 2224 wrote to memory of 1880	2224	cmd.exe	99
PID 2224 wrote to memory of 1880	2224	cmd.exe	99
PID 2224 wrote to memory of 1348	2224	cmd.exe	100
PID 2224 wrote to memory of 1348	2224	cmd.exe	100
PID 2000 wrote to memory of 4880	2000	cmd.exe	101
PID 2000 wrote to memory of 4880	2000	cmd.exe	101
PID 4880 wrote to memory of 732	4880	cmd.exe	102
PID 4880 wrote to memory of 732	4880	cmd.exe	102
PID 4880 wrote to memory of 4136	4880	cmd.exe	103
PID 4880 wrote to memory of 4136	4880	cmd.exe	103

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Executables\WALLPAPER.cmd"
1⤵
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" type "C:\Windows\Resources\Themes\aero.theme" "
  2⤵
  PID:1852
- C:\Windows\system32\findstr.exe
  findstr /c:"AppMode="
  2⤵
  PID:2044
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  PowerShell -NoP -C "$Content = (Get-Content 'C:\Windows\Resources\Themes\aero.theme'); $Content = $Content -replace 'Wallpaper=%SystemRoot%.*', 'Wallpaper=%SystemRoot%\web\wallpaper\Windows\atlas-dark.jpg'; $Content = $Content -replace 'SystemMode=.*', """"SystemMode=Dark`nAppMode=Dark"""" | Set-Content 'C:\Windows\Resources\Themes\aero.theme'"
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4284
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c reg query "HKEY_USERS" | findstr /r /x /c:"HKEY_USERS\\S-.*" /c:"HKEY_USERS\\AME_UserHive_[^_]*"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1220
- - C:\Windows\system32\reg.exe
    reg query "HKEY_USERS"
    3⤵
    PID:2564
- - C:\Windows\system32\findstr.exe
    findstr /r /x /c:"HKEY_USERS\\S-.*" /c:"HKEY_USERS\\AME_UserHive_[^_]*"
    3⤵
    PID:1664
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c reg query "HKU\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" /v "AppData" | findstr /r /x /c:".*AppData[ ]*REG_SZ[ ].*"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3136
- - C:\Windows\system32\reg.exe
    reg query "HKU\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" /v "AppData"
    3⤵
    PID:2624
- - C:\Windows\system32\findstr.exe
    findstr /r /x /c:".*AppData[ ]*REG_SZ[ ].*"
    3⤵
    PID:4024
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c reg query "HKU\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" /v "AppData" | findstr /r /x /c:".*AppData[ ]*REG_SZ[ ].*"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1624
- - C:\Windows\system32\reg.exe
    reg query "HKU\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" /v "AppData"
    3⤵
    PID:3568
- - C:\Windows\system32\findstr.exe
    findstr /r /x /c:".*AppData[ ]*REG_SZ[ ].*"
    3⤵
    PID:32
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c reg query "HKU\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" /v "AppData" | findstr /r /x /c:".*AppData[ ]*REG_SZ[ ].*"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:216
- - C:\Windows\system32\reg.exe
    reg query "HKU\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" /v "AppData"
    3⤵
    PID:100
- - C:\Windows\system32\findstr.exe
    findstr /r /x /c:".*AppData[ ]*REG_SZ[ ].*"
    3⤵
    PID:1420
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  PowerShell -NoP -C "Add-Type -AssemblyName System.Drawing; $img = New-Object System.Drawing.Bitmap 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Themes\TranscodedWallpaper'; if ($img.Flags -ne 77840) {exit 1}; if ($img.HorizontalResolution -ne 96) {exit 1}; if ($img.VerticalResolution -ne 96) {exit 1}; if ($img.PropertyIdList -notcontains 40961) {exit 1}; if ($img.PropertyIdList -notcontains 20624) {exit 1}; if ($img.PropertyIdList -notcontains 20625) {exit 1}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4196
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c reg query "HKU\S-1-5-21-144354903-2550862337-1367551827-1000_Classes\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" /v "AppData" | findstr /r /x /c:".*AppData[ ]*REG_SZ[ ].*"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Windows\system32\reg.exe
    reg query "HKU\S-1-5-21-144354903-2550862337-1367551827-1000_Classes\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" /v "AppData"
    3⤵
    PID:1880
- - C:\Windows\system32\findstr.exe
    findstr /r /x /c:".*AppData[ ]*REG_SZ[ ].*"
    3⤵
    PID:1348
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c reg query "HKU\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" /v "AppData" | findstr /r /x /c:".*AppData[ ]*REG_SZ[ ].*"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4880
- - C:\Windows\system32\reg.exe
    reg query "HKU\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" /v "AppData"
    3⤵
    PID:732
- - C:\Windows\system32\findstr.exe
    findstr /r /x /c:".*AppData[ ]*REG_SZ[ ].*"
    3⤵
    PID:4136

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
6cf293cb4d80be23433eecf74ddb5503

SHA1
24fe4752df102c2ef492954d6b046cb5512ad408

SHA256
b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8

SHA512
0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
227556da5e65f6819f477756808c17e4

SHA1
6ffce766e881ca2a60180bb25f4981b183f78279

SHA256
101f5fe8a4192f14e9f0a12c105ca81c9f176860930af44747185dd1bedb59a4

SHA512
d46b935809d2c4b7a041ad790f2db11c0a808df022c91ae9152b8769021b884fde49653a7a46557ef9ee65e274fe0b6c8503df9b50e6b3b849fefacf51f8bd6a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q4o15d03.czp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4196-159-0x000001666C3D0000-0x000001666C3E0000-memory.dmp

Filesize
64KB

Download
memory/4196-160-0x000001666C3D0000-0x000001666C3E0000-memory.dmp

Filesize
64KB

Download
memory/4196-161-0x000001666C3D0000-0x000001666C3E0000-memory.dmp

Filesize
64KB

Download
memory/4284-140-0x0000025235A80000-0x0000025235AA2000-memory.dmp

Filesize
136KB

Download
memory/4284-143-0x000002521B6C0000-0x000002521B6D0000-memory.dmp

Filesize
64KB

Download
memory/4284-144-0x000002521B6C0000-0x000002521B6D0000-memory.dmp

Filesize
64KB

Download
memory/4284-145-0x000002521B6C0000-0x000002521B6D0000-memory.dmp

Filesize
64KB

Download