62e0c21ed2965043017a40d602cefea1b19cd410fa1cb910528ba076bc973848

Resubmissions

18/09/2023, 23:03

230918-21m3lsdb3v 8

18/09/2023, 23:01

230918-2zhfqsfc79 8

Analysis

max time kernel
38s
max time network
43s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2023, 23:01

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Reason

Machine shutdown

Report Analysis Logs

General

Target

o6sa6ka6.exe
Size

156KB
MD5

39cacdf0b3e11aa4cebb0a9cb405f924
SHA1

741e4684c9ef07f8b2a74e428d45250ce51eeec7
SHA256

62e0c21ed2965043017a40d602cefea1b19cd410fa1cb910528ba076bc973848
SHA512

891c0843790a96b4e09b1c2af79007f6d79f56fcbf2794e88673c5ec80c744f30c1c5ea97361d3b0f0a906fd7bde179052841f62488c342000ecce864f9bc51a
SSDEEP

3072:uahKyd2n31U5GWp1icKAArDZz4N9GhbkrNEkB4nEka:uahO0p0yN90QEK

Score

8^/10

persistence ransomware

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
7	2248	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	o6sa6ka6.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-1-5-21-2344688013-2965468717-2034126-1000\Control Panel\Desktop\Wallpaper = "C:\\sufiaw\\o6sa6ka6.jpg"	powershell.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "108"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2248	powershell.exe
2248	powershell.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	powershell.exe
Token: SeShutdownPrivilege	2248	powershell.exe
Token: SeIncreaseQuotaPrivilege	2248	powershell.exe
Token: SeSecurityPrivilege	2248	powershell.exe
Token: SeTakeOwnershipPrivilege	2248	powershell.exe
Token: SeLoadDriverPrivilege	2248	powershell.exe
Token: SeSystemProfilePrivilege	2248	powershell.exe
Token: SeSystemtimePrivilege	2248	powershell.exe
Token: SeProfSingleProcessPrivilege	2248	powershell.exe
Token: SeIncBasePriorityPrivilege	2248	powershell.exe
Token: SeCreatePagefilePrivilege	2248	powershell.exe
Token: SeBackupPrivilege	2248	powershell.exe
Token: SeRestorePrivilege	2248	powershell.exe
Token: SeShutdownPrivilege	2248	powershell.exe
Token: SeDebugPrivilege	2248	powershell.exe
Token: SeSystemEnvironmentPrivilege	2248	powershell.exe
Token: SeRemoteShutdownPrivilege	2248	powershell.exe
Token: SeUndockPrivilege	2248	powershell.exe
Token: SeManageVolumePrivilege	2248	powershell.exe
Token: 33	2248	powershell.exe
Token: 34	2248	powershell.exe
Token: 35	2248	powershell.exe
Token: 36	2248	powershell.exe
Token: SeIncreaseQuotaPrivilege	2248	powershell.exe
Token: SeSecurityPrivilege	2248	powershell.exe
Token: SeTakeOwnershipPrivilege	2248	powershell.exe
Token: SeLoadDriverPrivilege	2248	powershell.exe
Token: SeSystemProfilePrivilege	2248	powershell.exe
Token: SeSystemtimePrivilege	2248	powershell.exe
Token: SeProfSingleProcessPrivilege	2248	powershell.exe
Token: SeIncBasePriorityPrivilege	2248	powershell.exe
Token: SeCreatePagefilePrivilege	2248	powershell.exe
Token: SeBackupPrivilege	2248	powershell.exe
Token: SeRestorePrivilege	2248	powershell.exe
Token: SeShutdownPrivilege	2248	powershell.exe
Token: SeDebugPrivilege	2248	powershell.exe
Token: SeSystemEnvironmentPrivilege	2248	powershell.exe
Token: SeRemoteShutdownPrivilege	2248	powershell.exe
Token: SeUndockPrivilege	2248	powershell.exe
Token: SeManageVolumePrivilege	2248	powershell.exe
Token: 33	2248	powershell.exe
Token: 34	2248	powershell.exe
Token: 35	2248	powershell.exe
Token: 36	2248	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
228	LogonUI.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 2248	2136	o6sa6ka6.exe	86
PID 2136 wrote to memory of 2248	2136	o6sa6ka6.exe	86

C:\Users\Admin\AppData\Local\Temp\o6sa6ka6.exe
"C:\Users\Admin\AppData\Local\Temp\o6sa6ka6.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2136
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -executionpolicy bypass -file o6sa6ka6.ps1
  2⤵
  - Blocklisted process makes network request
  - Sets desktop wallpaper using registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2248

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39b2055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\o6sa6ka6.ps1

Filesize
755B

MD5
60001552804d6d46125e472a0ce933b2

SHA1
c7e3bbe870ccd97b6707ba53a349e0af0697f1bb

SHA256
d4dd2f0c2a880f6bcaeee5ecb8daa10df65cba722f4f530feaefb77a74a965a3

SHA512
85f45198b9dd5e3fe1a1bf5300750bfff617d1834dd21d9e8faa6d2bce78ce460177c3767b7c593328480faba03d4cd714654e49d1a6097a98affbf7d76c371b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xvkl1tgl.5ki.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2248-2-0x0000017321BE0000-0x0000017321C02000-memory.dmp

Filesize
136KB

Download
memory/2248-12-0x00007FFA57810000-0x00007FFA582D1000-memory.dmp

Filesize
10.8MB

Download
memory/2248-15-0x0000017309610000-0x0000017309620000-memory.dmp

Filesize
64KB

Download
memory/2248-14-0x0000017309610000-0x0000017309620000-memory.dmp

Filesize
64KB

Download
memory/2248-17-0x00007FFA57810000-0x00007FFA582D1000-memory.dmp

Filesize
10.8MB

Download
memory/2248-18-0x0000017309610000-0x0000017309620000-memory.dmp

Filesize
64KB

Download
memory/2248-19-0x0000017309610000-0x0000017309620000-memory.dmp

Filesize
64KB

Download
memory/2248-20-0x00007FFA57810000-0x00007FFA582D1000-memory.dmp

Filesize
10.8MB

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads