umbral | 0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
05-08-2024 12:57

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General

Target

0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe
Size

229KB
MD5

ae3713305401315a3b520e84fb786fe5
SHA1

914bd258c204e4cddab9dc0dbfb9c7134659ad57
SHA256

0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb
SHA512

ae29d0c4c9106dcfbd4a212968d7d8b87236c2f39ce37435d3a658fe1b42875e44cc65c98f818391a8051312811b51da747efef5fa347f3a053b58454bd1e155
SSDEEP

6144:dloZM3fsXtioRkts/cnnK6cMlpGZ7lTwk7tiTlwsJtSb8e1mdi:/oZ1tlRk83MlpGZ7lTwk7tiTlwsJIH

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1320-1-0x0000000000340000-0x0000000000380000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2616	powershell.exe
2800	powershell.exe
1264	powershell.exe
1932	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe

Deletes itself 1 IoCs

pid	Process
2032	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

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
2032	cmd.exe
2876	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2824	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2876	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe
1932	powershell.exe
2616	powershell.exe
2800	powershell.exe
2676	powershell.exe
1264	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe
Token: SeIncreaseQuotaPrivilege	2184	wmic.exe
Token: SeSecurityPrivilege	2184	wmic.exe
Token: SeTakeOwnershipPrivilege	2184	wmic.exe
Token: SeLoadDriverPrivilege	2184	wmic.exe
Token: SeSystemProfilePrivilege	2184	wmic.exe
Token: SeSystemtimePrivilege	2184	wmic.exe
Token: SeProfSingleProcessPrivilege	2184	wmic.exe
Token: SeIncBasePriorityPrivilege	2184	wmic.exe
Token: SeCreatePagefilePrivilege	2184	wmic.exe
Token: SeBackupPrivilege	2184	wmic.exe
Token: SeRestorePrivilege	2184	wmic.exe
Token: SeShutdownPrivilege	2184	wmic.exe
Token: SeDebugPrivilege	2184	wmic.exe
Token: SeSystemEnvironmentPrivilege	2184	wmic.exe
Token: SeRemoteShutdownPrivilege	2184	wmic.exe
Token: SeUndockPrivilege	2184	wmic.exe
Token: SeManageVolumePrivilege	2184	wmic.exe
Token: 33	2184	wmic.exe
Token: 34	2184	wmic.exe
Token: 35	2184	wmic.exe
Token: SeIncreaseQuotaPrivilege	2184	wmic.exe
Token: SeSecurityPrivilege	2184	wmic.exe
Token: SeTakeOwnershipPrivilege	2184	wmic.exe
Token: SeLoadDriverPrivilege	2184	wmic.exe
Token: SeSystemProfilePrivilege	2184	wmic.exe
Token: SeSystemtimePrivilege	2184	wmic.exe
Token: SeProfSingleProcessPrivilege	2184	wmic.exe
Token: SeIncBasePriorityPrivilege	2184	wmic.exe
Token: SeCreatePagefilePrivilege	2184	wmic.exe
Token: SeBackupPrivilege	2184	wmic.exe
Token: SeRestorePrivilege	2184	wmic.exe
Token: SeShutdownPrivilege	2184	wmic.exe
Token: SeDebugPrivilege	2184	wmic.exe
Token: SeSystemEnvironmentPrivilege	2184	wmic.exe
Token: SeRemoteShutdownPrivilege	2184	wmic.exe
Token: SeUndockPrivilege	2184	wmic.exe
Token: SeManageVolumePrivilege	2184	wmic.exe
Token: 33	2184	wmic.exe
Token: 34	2184	wmic.exe
Token: 35	2184	wmic.exe
Token: SeDebugPrivilege	1932	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	2800	powershell.exe
Token: SeDebugPrivilege	2676	powershell.exe
Token: SeIncreaseQuotaPrivilege	1412	wmic.exe
Token: SeSecurityPrivilege	1412	wmic.exe
Token: SeTakeOwnershipPrivilege	1412	wmic.exe
Token: SeLoadDriverPrivilege	1412	wmic.exe
Token: SeSystemProfilePrivilege	1412	wmic.exe
Token: SeSystemtimePrivilege	1412	wmic.exe
Token: SeProfSingleProcessPrivilege	1412	wmic.exe
Token: SeIncBasePriorityPrivilege	1412	wmic.exe
Token: SeCreatePagefilePrivilege	1412	wmic.exe
Token: SeBackupPrivilege	1412	wmic.exe
Token: SeRestorePrivilege	1412	wmic.exe
Token: SeShutdownPrivilege	1412	wmic.exe
Token: SeDebugPrivilege	1412	wmic.exe
Token: SeSystemEnvironmentPrivilege	1412	wmic.exe
Token: SeRemoteShutdownPrivilege	1412	wmic.exe
Token: SeUndockPrivilege	1412	wmic.exe
Token: SeManageVolumePrivilege	1412	wmic.exe
Token: 33	1412	wmic.exe
Token: 34	1412	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1320 wrote to memory of 2184	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	28
PID 1320 wrote to memory of 2184	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	28
PID 1320 wrote to memory of 2184	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	28
PID 1320 wrote to memory of 1508	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	31
PID 1320 wrote to memory of 1508	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	31
PID 1320 wrote to memory of 1508	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	31
PID 1320 wrote to memory of 1932	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	33
PID 1320 wrote to memory of 1932	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	33
PID 1320 wrote to memory of 1932	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	33
PID 1320 wrote to memory of 2616	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	35
PID 1320 wrote to memory of 2616	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	35
PID 1320 wrote to memory of 2616	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	35
PID 1320 wrote to memory of 2800	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	37
PID 1320 wrote to memory of 2800	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	37
PID 1320 wrote to memory of 2800	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	37
PID 1320 wrote to memory of 2676	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	39
PID 1320 wrote to memory of 2676	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	39
PID 1320 wrote to memory of 2676	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	39
PID 1320 wrote to memory of 1412	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	41
PID 1320 wrote to memory of 1412	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	41
PID 1320 wrote to memory of 1412	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	41
PID 1320 wrote to memory of 1860	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	43
PID 1320 wrote to memory of 1860	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	43
PID 1320 wrote to memory of 1860	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	43
PID 1320 wrote to memory of 1216	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	45
PID 1320 wrote to memory of 1216	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	45
PID 1320 wrote to memory of 1216	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	45
PID 1320 wrote to memory of 1264	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	47
PID 1320 wrote to memory of 1264	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	47
PID 1320 wrote to memory of 1264	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	47
PID 1320 wrote to memory of 2824	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	49
PID 1320 wrote to memory of 2824	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	49
PID 1320 wrote to memory of 2824	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	49
PID 1320 wrote to memory of 2032	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	51
PID 1320 wrote to memory of 2032	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	51
PID 1320 wrote to memory of 2032	1320	0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe	51
PID 2032 wrote to memory of 2876	2032	cmd.exe	53
PID 2032 wrote to memory of 2876	2032	cmd.exe	53
PID 2032 wrote to memory of 2876	2032	cmd.exe	53

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1508	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe
"C:\Users\Admin\AppData\Local\Temp\0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2184
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe"
  2⤵
  - Views/modifies file attributes
  PID:1508
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1932
- 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:2616
- 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:2800
- 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:2676
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1412
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1860
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1216
- 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:1264
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2824
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\0933217d8ea84d9341154ecc34a3f231cf2ff0e70d67dbe190265c7e26b96cfb.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2032
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2876

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

Exfiltration

Impact

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Downloads

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

Filesize
7KB

MD5
2ae3f71add4d0bdb379540858670a2c5

SHA1
39e5ac03ded944d2e7f5caf6a7ee5026ea4dfde2

SHA256
a92f3d00efd36e4abad60dd948cc1dd567ae68d20be5427b6096b6e70f66972f

SHA512
8635f3ee990578b8267e392637c4f58d79007a6f4167aa9b942b3ca736dafa9276aa43478e503b154f1f6329b932c725f34237cce2b83f64b8e15cd438c3866e

Download Submit
memory/1264-42-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/1320-0-0x000007FEF56E3000-0x000007FEF56E4000-memory.dmp

Filesize
4KB

Download
memory/1320-1-0x0000000000340000-0x0000000000380000-memory.dmp

Filesize
256KB

Download
memory/1320-2-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp

Filesize
9.9MB

Download
memory/1320-46-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp

Filesize
9.9MB

Download
memory/1932-7-0x000000001B650000-0x000000001B932000-memory.dmp

Filesize
2.9MB

Download
memory/1932-8-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/2616-14-0x000000001B650000-0x000000001B932000-memory.dmp

Filesize
2.9MB

Download
memory/2616-15-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download