umbral | 3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27-08-2024 20:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe
Size

240KB
MD5

3ab1d460b16ec34493d9d769729a53fc
SHA1

e7e379fb8d8390103e53c31f07a52dbd1bc796a1
SHA256

3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9
SHA512

37d59d665ed891832e3e8efd6b74116bb51230a69b1c5fff53e2aaf8eaaade4d807215dae3bbd26ec5812f8bae55f2d982e975d38c0d6ce684b5b2cea93f2949
SSDEEP

6144:vloZMNrIkd8g+EtXHkv/iD4lx4+Clg8e1mbTi:NoZmL+EP8DMwK+

Score

10^/10

umbral credential_access execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1328-1-0x0000000000C00000-0x0000000000C42000-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
2804	powershell.exe
1708	powershell.exe
540	powershell.exe
2792	powershell.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
8	discord.com
9	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

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3004	wmic.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2804	powershell.exe
2792	powershell.exe
1708	powershell.exe
2704	powershell.exe
540	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe
Token: SeDebugPrivilege	2804	powershell.exe
Token: SeDebugPrivilege	2792	powershell.exe
Token: SeDebugPrivilege	1708	powershell.exe
Token: SeDebugPrivilege	2704	powershell.exe
Token: SeIncreaseQuotaPrivilege	2104	wmic.exe
Token: SeSecurityPrivilege	2104	wmic.exe
Token: SeTakeOwnershipPrivilege	2104	wmic.exe
Token: SeLoadDriverPrivilege	2104	wmic.exe
Token: SeSystemProfilePrivilege	2104	wmic.exe
Token: SeSystemtimePrivilege	2104	wmic.exe
Token: SeProfSingleProcessPrivilege	2104	wmic.exe
Token: SeIncBasePriorityPrivilege	2104	wmic.exe
Token: SeCreatePagefilePrivilege	2104	wmic.exe
Token: SeBackupPrivilege	2104	wmic.exe
Token: SeRestorePrivilege	2104	wmic.exe
Token: SeShutdownPrivilege	2104	wmic.exe
Token: SeDebugPrivilege	2104	wmic.exe
Token: SeSystemEnvironmentPrivilege	2104	wmic.exe
Token: SeRemoteShutdownPrivilege	2104	wmic.exe
Token: SeUndockPrivilege	2104	wmic.exe
Token: SeManageVolumePrivilege	2104	wmic.exe
Token: 33	2104	wmic.exe
Token: 34	2104	wmic.exe
Token: 35	2104	wmic.exe
Token: SeIncreaseQuotaPrivilege	2104	wmic.exe
Token: SeSecurityPrivilege	2104	wmic.exe
Token: SeTakeOwnershipPrivilege	2104	wmic.exe
Token: SeLoadDriverPrivilege	2104	wmic.exe
Token: SeSystemProfilePrivilege	2104	wmic.exe
Token: SeSystemtimePrivilege	2104	wmic.exe
Token: SeProfSingleProcessPrivilege	2104	wmic.exe
Token: SeIncBasePriorityPrivilege	2104	wmic.exe
Token: SeCreatePagefilePrivilege	2104	wmic.exe
Token: SeBackupPrivilege	2104	wmic.exe
Token: SeRestorePrivilege	2104	wmic.exe
Token: SeShutdownPrivilege	2104	wmic.exe
Token: SeDebugPrivilege	2104	wmic.exe
Token: SeSystemEnvironmentPrivilege	2104	wmic.exe
Token: SeRemoteShutdownPrivilege	2104	wmic.exe
Token: SeUndockPrivilege	2104	wmic.exe
Token: SeManageVolumePrivilege	2104	wmic.exe
Token: 33	2104	wmic.exe
Token: 34	2104	wmic.exe
Token: 35	2104	wmic.exe
Token: SeIncreaseQuotaPrivilege	2400	wmic.exe
Token: SeSecurityPrivilege	2400	wmic.exe
Token: SeTakeOwnershipPrivilege	2400	wmic.exe
Token: SeLoadDriverPrivilege	2400	wmic.exe
Token: SeSystemProfilePrivilege	2400	wmic.exe
Token: SeSystemtimePrivilege	2400	wmic.exe
Token: SeProfSingleProcessPrivilege	2400	wmic.exe
Token: SeIncBasePriorityPrivilege	2400	wmic.exe
Token: SeCreatePagefilePrivilege	2400	wmic.exe
Token: SeBackupPrivilege	2400	wmic.exe
Token: SeRestorePrivilege	2400	wmic.exe
Token: SeShutdownPrivilege	2400	wmic.exe
Token: SeDebugPrivilege	2400	wmic.exe
Token: SeSystemEnvironmentPrivilege	2400	wmic.exe
Token: SeRemoteShutdownPrivilege	2400	wmic.exe
Token: SeUndockPrivilege	2400	wmic.exe
Token: SeManageVolumePrivilege	2400	wmic.exe
Token: 33	2400	wmic.exe
Token: 34	2400	wmic.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1328 wrote to memory of 2804	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	30
PID 1328 wrote to memory of 2804	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	30
PID 1328 wrote to memory of 2804	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	30
PID 1328 wrote to memory of 2792	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	32
PID 1328 wrote to memory of 2792	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	32
PID 1328 wrote to memory of 2792	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	32
PID 1328 wrote to memory of 1708	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	34
PID 1328 wrote to memory of 1708	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	34
PID 1328 wrote to memory of 1708	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	34
PID 1328 wrote to memory of 2704	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	36
PID 1328 wrote to memory of 2704	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	36
PID 1328 wrote to memory of 2704	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	36
PID 1328 wrote to memory of 2104	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	38
PID 1328 wrote to memory of 2104	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	38
PID 1328 wrote to memory of 2104	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	38
PID 1328 wrote to memory of 2400	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	41
PID 1328 wrote to memory of 2400	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	41
PID 1328 wrote to memory of 2400	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	41
PID 1328 wrote to memory of 1040	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	43
PID 1328 wrote to memory of 1040	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	43
PID 1328 wrote to memory of 1040	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	43
PID 1328 wrote to memory of 540	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	45
PID 1328 wrote to memory of 540	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	45
PID 1328 wrote to memory of 540	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	45
PID 1328 wrote to memory of 3004	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	47
PID 1328 wrote to memory of 3004	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	47
PID 1328 wrote to memory of 3004	1328	3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe	47

C:\Users\Admin\AppData\Local\Temp\3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe
"C:\Users\Admin\AppData\Local\Temp\3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1328
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\3d33b7e8a8541de77e1428e6998cf1d77e1e3c7121ff42bb92285614db513bc9.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2804
- 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:2792
- 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:1708
- 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:2704
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2104
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2400
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1040
- 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:540
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3004

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

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
7KB

MD5
e9120a69e01d8b612349fd78c9883541

SHA1
45ba5d50eef344c0e144c61815630bc4c5a9f108

SHA256
81c8c4b30e724f2aa715c7c346a15b9c7942bbab1c66a269098dfb2c4780f026

SHA512
b2f0f04190f6904af33b429bf8d2c7f9fd040d7d5f1c54ba83578f721970547ea8768a8ddb20e6cec6ffc7dbe299b4369f664f5307433391f16216da859d1350

Download Submit
memory/540-47-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/1328-1-0x0000000000C00000-0x0000000000C42000-memory.dmp

Filesize
264KB

Download
memory/1328-2-0x000007FEF5BB0000-0x000007FEF659C000-memory.dmp

Filesize
9.9MB

Download
memory/1328-51-0x000007FEF5BB0000-0x000007FEF659C000-memory.dmp

Filesize
9.9MB

Download
memory/1328-0-0x000007FEF5BB3000-0x000007FEF5BB4000-memory.dmp

Filesize
4KB

Download
memory/2792-22-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/2792-21-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

Filesize
2.9MB

Download
memory/2804-8-0x000000001B5A0000-0x000000001B882000-memory.dmp

Filesize
2.9MB

Download
memory/2804-10-0x000007FEED3A0000-0x000007FEEDD3D000-memory.dmp

Filesize
9.6MB

Download
memory/2804-14-0x000007FEED3A0000-0x000007FEEDD3D000-memory.dmp

Filesize
9.6MB

Download
memory/2804-15-0x000007FEED3A0000-0x000007FEEDD3D000-memory.dmp

Filesize
9.6MB

Download
memory/2804-11-0x000007FEED3A0000-0x000007FEEDD3D000-memory.dmp

Filesize
9.6MB

Download
memory/2804-12-0x000007FEED3A0000-0x000007FEEDD3D000-memory.dmp

Filesize
9.6MB

Download
memory/2804-13-0x000007FEED3A0000-0x000007FEEDD3D000-memory.dmp

Filesize
9.6MB

Download
memory/2804-9-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/2804-7-0x000007FEED65E000-0x000007FEED65F000-memory.dmp

Filesize
4KB

Download