umbral | dfaadfbf1693ea477fde1a960b20280daa82e35128f537a62859bc5aeff9a948

Analysis

max time kernel
94s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2024 16:09

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General

Target

KiosceneSoftdrivev2.10.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
behavioral2/memory/2796-0-0x000001CC61CA0000-0x000001CC61CE0000-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
1820	powershell.exe
3000	powershell.exe
324	powershell.exe
1292	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	KiosceneSoftdrivev2.10.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
14	discord.com
15	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
3	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
3536	cmd.exe
4992	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2200	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4992	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2796	KiosceneSoftdrivev2.10.exe
1820	powershell.exe
1820	powershell.exe
3000	powershell.exe
3000	powershell.exe
324	powershell.exe
324	powershell.exe
4820	powershell.exe
4820	powershell.exe
1292	powershell.exe
1292	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	KiosceneSoftdrivev2.10.exe
Token: SeIncreaseQuotaPrivilege	4276	wmic.exe
Token: SeSecurityPrivilege	4276	wmic.exe
Token: SeTakeOwnershipPrivilege	4276	wmic.exe
Token: SeLoadDriverPrivilege	4276	wmic.exe
Token: SeSystemProfilePrivilege	4276	wmic.exe
Token: SeSystemtimePrivilege	4276	wmic.exe
Token: SeProfSingleProcessPrivilege	4276	wmic.exe
Token: SeIncBasePriorityPrivilege	4276	wmic.exe
Token: SeCreatePagefilePrivilege	4276	wmic.exe
Token: SeBackupPrivilege	4276	wmic.exe
Token: SeRestorePrivilege	4276	wmic.exe
Token: SeShutdownPrivilege	4276	wmic.exe
Token: SeDebugPrivilege	4276	wmic.exe
Token: SeSystemEnvironmentPrivilege	4276	wmic.exe
Token: SeRemoteShutdownPrivilege	4276	wmic.exe
Token: SeUndockPrivilege	4276	wmic.exe
Token: SeManageVolumePrivilege	4276	wmic.exe
Token: 33	4276	wmic.exe
Token: 34	4276	wmic.exe
Token: 35	4276	wmic.exe
Token: 36	4276	wmic.exe
Token: SeIncreaseQuotaPrivilege	4276	wmic.exe
Token: SeSecurityPrivilege	4276	wmic.exe
Token: SeTakeOwnershipPrivilege	4276	wmic.exe
Token: SeLoadDriverPrivilege	4276	wmic.exe
Token: SeSystemProfilePrivilege	4276	wmic.exe
Token: SeSystemtimePrivilege	4276	wmic.exe
Token: SeProfSingleProcessPrivilege	4276	wmic.exe
Token: SeIncBasePriorityPrivilege	4276	wmic.exe
Token: SeCreatePagefilePrivilege	4276	wmic.exe
Token: SeBackupPrivilege	4276	wmic.exe
Token: SeRestorePrivilege	4276	wmic.exe
Token: SeShutdownPrivilege	4276	wmic.exe
Token: SeDebugPrivilege	4276	wmic.exe
Token: SeSystemEnvironmentPrivilege	4276	wmic.exe
Token: SeRemoteShutdownPrivilege	4276	wmic.exe
Token: SeUndockPrivilege	4276	wmic.exe
Token: SeManageVolumePrivilege	4276	wmic.exe
Token: 33	4276	wmic.exe
Token: 34	4276	wmic.exe
Token: 35	4276	wmic.exe
Token: 36	4276	wmic.exe
Token: SeDebugPrivilege	1820	powershell.exe
Token: SeDebugPrivilege	3000	powershell.exe
Token: SeDebugPrivilege	324	powershell.exe
Token: SeDebugPrivilege	4820	powershell.exe
Token: SeIncreaseQuotaPrivilege	4824	wmic.exe
Token: SeSecurityPrivilege	4824	wmic.exe
Token: SeTakeOwnershipPrivilege	4824	wmic.exe
Token: SeLoadDriverPrivilege	4824	wmic.exe
Token: SeSystemProfilePrivilege	4824	wmic.exe
Token: SeSystemtimePrivilege	4824	wmic.exe
Token: SeProfSingleProcessPrivilege	4824	wmic.exe
Token: SeIncBasePriorityPrivilege	4824	wmic.exe
Token: SeCreatePagefilePrivilege	4824	wmic.exe
Token: SeBackupPrivilege	4824	wmic.exe
Token: SeRestorePrivilege	4824	wmic.exe
Token: SeShutdownPrivilege	4824	wmic.exe
Token: SeDebugPrivilege	4824	wmic.exe
Token: SeSystemEnvironmentPrivilege	4824	wmic.exe
Token: SeRemoteShutdownPrivilege	4824	wmic.exe
Token: SeUndockPrivilege	4824	wmic.exe
Token: SeManageVolumePrivilege	4824	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 4276	2796	KiosceneSoftdrivev2.10.exe	83
PID 2796 wrote to memory of 4276	2796	KiosceneSoftdrivev2.10.exe	83
PID 2796 wrote to memory of 3696	2796	KiosceneSoftdrivev2.10.exe	87
PID 2796 wrote to memory of 3696	2796	KiosceneSoftdrivev2.10.exe	87
PID 2796 wrote to memory of 1820	2796	KiosceneSoftdrivev2.10.exe	89
PID 2796 wrote to memory of 1820	2796	KiosceneSoftdrivev2.10.exe	89
PID 2796 wrote to memory of 3000	2796	KiosceneSoftdrivev2.10.exe	91
PID 2796 wrote to memory of 3000	2796	KiosceneSoftdrivev2.10.exe	91
PID 2796 wrote to memory of 324	2796	KiosceneSoftdrivev2.10.exe	93
PID 2796 wrote to memory of 324	2796	KiosceneSoftdrivev2.10.exe	93
PID 2796 wrote to memory of 4820	2796	KiosceneSoftdrivev2.10.exe	95
PID 2796 wrote to memory of 4820	2796	KiosceneSoftdrivev2.10.exe	95
PID 2796 wrote to memory of 4824	2796	KiosceneSoftdrivev2.10.exe	97
PID 2796 wrote to memory of 4824	2796	KiosceneSoftdrivev2.10.exe	97
PID 2796 wrote to memory of 4960	2796	KiosceneSoftdrivev2.10.exe	99
PID 2796 wrote to memory of 4960	2796	KiosceneSoftdrivev2.10.exe	99
PID 2796 wrote to memory of 3356	2796	KiosceneSoftdrivev2.10.exe	101
PID 2796 wrote to memory of 3356	2796	KiosceneSoftdrivev2.10.exe	101
PID 2796 wrote to memory of 1292	2796	KiosceneSoftdrivev2.10.exe	103
PID 2796 wrote to memory of 1292	2796	KiosceneSoftdrivev2.10.exe	103
PID 2796 wrote to memory of 2200	2796	KiosceneSoftdrivev2.10.exe	105
PID 2796 wrote to memory of 2200	2796	KiosceneSoftdrivev2.10.exe	105
PID 2796 wrote to memory of 3536	2796	KiosceneSoftdrivev2.10.exe	107
PID 2796 wrote to memory of 3536	2796	KiosceneSoftdrivev2.10.exe	107
PID 3536 wrote to memory of 4992	3536	cmd.exe	109
PID 3536 wrote to memory of 4992	3536	cmd.exe	109

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3696	attrib.exe

C:\Users\Admin\AppData\Local\Temp\KiosceneSoftdrivev2.10.exe
"C:\Users\Admin\AppData\Local\Temp\KiosceneSoftdrivev2.10.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2796
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4276
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\KiosceneSoftdrivev2.10.exe"
  2⤵
  - Views/modifies file attributes
  PID:3696
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\KiosceneSoftdrivev2.10.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1820
- 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:3000
- 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:324
- 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:4820
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4824
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4960
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3356
- 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:1292
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2200
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\KiosceneSoftdrivev2.10.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3536
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4992

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\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
0b8cb2e6dd5794b6a56a4bdbbd430fd7

SHA1
2b08e348c3489c6a35761af073018e3784c12074

SHA256
bcce0d44e33747e4c39df9afbd0a4e98a47ded0188375e4dfdd94cafbb366e1f

SHA512
15ce3b588aa80899f69b0313c7e188d886bddbd09783ca732ac33f9ae8e4e017a72b6f98919f581383a4582732575e5faedb0dea87e01cf2b657424945fdf4d2

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

Filesize
1KB

MD5
d3235ed022a42ec4338123ab87144afa

SHA1
5058608bc0deb720a585a2304a8f7cf63a50a315

SHA256
10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

SHA512
236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

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

Filesize
1KB

MD5
ca58d1913d3261f116a299095e04f734

SHA1
941d13d0c8c65adb6513f23991acfa0d62facdea

SHA256
755daf72f2f5e983abb009c3b1eef4c7c660999f5ff581545bbcae7088c17c69

SHA512
87b0d8c9a5348235e9ad6416e09665764db1af408bf763857dc40e39411fa0cf405e3e8b9f0b8540c72aa874059d1dee865aa0cff8dba0fde5779ec9480b5e40

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0halk3tq.lib.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1820-17-0x00007FFDBC990000-0x00007FFDBD451000-memory.dmp

Filesize
10.8MB

Download
memory/1820-9-0x00007FFDBC990000-0x00007FFDBD451000-memory.dmp

Filesize
10.8MB

Download
memory/1820-15-0x00007FFDBC990000-0x00007FFDBD451000-memory.dmp

Filesize
10.8MB

Download
memory/1820-8-0x000001E818C20000-0x000001E818C42000-memory.dmp

Filesize
136KB

Download
memory/1820-10-0x00007FFDBC990000-0x00007FFDBD451000-memory.dmp

Filesize
10.8MB

Download
memory/2796-33-0x000001CC7C350000-0x000001CC7C36E000-memory.dmp

Filesize
120KB

Download
memory/2796-32-0x000001CC7C450000-0x000001CC7C4A0000-memory.dmp

Filesize
320KB

Download
memory/2796-31-0x000001CC7C3D0000-0x000001CC7C446000-memory.dmp

Filesize
472KB

Download
memory/2796-0-0x000001CC61CA0000-0x000001CC61CE0000-memory.dmp

Filesize
256KB

Download
memory/2796-2-0x00007FFDBC990000-0x00007FFDBD451000-memory.dmp

Filesize
10.8MB

Download
memory/2796-69-0x000001CC7C390000-0x000001CC7C39A000-memory.dmp

Filesize
40KB

Download
memory/2796-70-0x000001CC7C5A0000-0x000001CC7C5B2000-memory.dmp

Filesize
72KB

Download
memory/2796-1-0x00007FFDBC993000-0x00007FFDBC995000-memory.dmp

Filesize
8KB

Download
memory/2796-88-0x00007FFDBC990000-0x00007FFDBD451000-memory.dmp

Filesize
10.8MB

Download