umbral | 8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874

Analysis

max time kernel
17s
max time network
22s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-09-2024 21:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe
Size

229KB
MD5

25a2fec95cda41fd3c61d60c94ff3364
SHA1

beaf7f2cac9263de452edd2acf988c7ee80a3b1b
SHA256

8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874
SHA512

30da5918a3afd72ec6f5ff5fb70f4d7c0a4d424f12b1fa1be9453bb8ee8df0cdc89aa05d6202d8392032f2f6e47b2c43ea36e024b0def49ed829bfe10ff2d830
SSDEEP

6144:9loZMjNaK9/gMntXP03fCFZ4HZMs1tGRPAA/NotgKv8eFlLBT:foZwd5n734HZMs1tGRPAA/NpWlZ

Score

10^/10

umbral credential_access execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2876-1-0x0000000000E20000-0x0000000000E60000-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
2244	powershell.exe
2560	powershell.exe
1248	powershell.exe
540	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.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

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2068	wmic.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe
2244	powershell.exe
2560	powershell.exe
1248	powershell.exe
2904	powershell.exe
540	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe
Token: SeIncreaseQuotaPrivilege	2812	wmic.exe
Token: SeSecurityPrivilege	2812	wmic.exe
Token: SeTakeOwnershipPrivilege	2812	wmic.exe
Token: SeLoadDriverPrivilege	2812	wmic.exe
Token: SeSystemProfilePrivilege	2812	wmic.exe
Token: SeSystemtimePrivilege	2812	wmic.exe
Token: SeProfSingleProcessPrivilege	2812	wmic.exe
Token: SeIncBasePriorityPrivilege	2812	wmic.exe
Token: SeCreatePagefilePrivilege	2812	wmic.exe
Token: SeBackupPrivilege	2812	wmic.exe
Token: SeRestorePrivilege	2812	wmic.exe
Token: SeShutdownPrivilege	2812	wmic.exe
Token: SeDebugPrivilege	2812	wmic.exe
Token: SeSystemEnvironmentPrivilege	2812	wmic.exe
Token: SeRemoteShutdownPrivilege	2812	wmic.exe
Token: SeUndockPrivilege	2812	wmic.exe
Token: SeManageVolumePrivilege	2812	wmic.exe
Token: 33	2812	wmic.exe
Token: 34	2812	wmic.exe
Token: 35	2812	wmic.exe
Token: SeIncreaseQuotaPrivilege	2812	wmic.exe
Token: SeSecurityPrivilege	2812	wmic.exe
Token: SeTakeOwnershipPrivilege	2812	wmic.exe
Token: SeLoadDriverPrivilege	2812	wmic.exe
Token: SeSystemProfilePrivilege	2812	wmic.exe
Token: SeSystemtimePrivilege	2812	wmic.exe
Token: SeProfSingleProcessPrivilege	2812	wmic.exe
Token: SeIncBasePriorityPrivilege	2812	wmic.exe
Token: SeCreatePagefilePrivilege	2812	wmic.exe
Token: SeBackupPrivilege	2812	wmic.exe
Token: SeRestorePrivilege	2812	wmic.exe
Token: SeShutdownPrivilege	2812	wmic.exe
Token: SeDebugPrivilege	2812	wmic.exe
Token: SeSystemEnvironmentPrivilege	2812	wmic.exe
Token: SeRemoteShutdownPrivilege	2812	wmic.exe
Token: SeUndockPrivilege	2812	wmic.exe
Token: SeManageVolumePrivilege	2812	wmic.exe
Token: 33	2812	wmic.exe
Token: 34	2812	wmic.exe
Token: 35	2812	wmic.exe
Token: SeDebugPrivilege	2244	powershell.exe
Token: SeDebugPrivilege	2560	powershell.exe
Token: SeDebugPrivilege	1248	powershell.exe
Token: SeDebugPrivilege	2904	powershell.exe
Token: SeIncreaseQuotaPrivilege	1156	wmic.exe
Token: SeSecurityPrivilege	1156	wmic.exe
Token: SeTakeOwnershipPrivilege	1156	wmic.exe
Token: SeLoadDriverPrivilege	1156	wmic.exe
Token: SeSystemProfilePrivilege	1156	wmic.exe
Token: SeSystemtimePrivilege	1156	wmic.exe
Token: SeProfSingleProcessPrivilege	1156	wmic.exe
Token: SeIncBasePriorityPrivilege	1156	wmic.exe
Token: SeCreatePagefilePrivilege	1156	wmic.exe
Token: SeBackupPrivilege	1156	wmic.exe
Token: SeRestorePrivilege	1156	wmic.exe
Token: SeShutdownPrivilege	1156	wmic.exe
Token: SeDebugPrivilege	1156	wmic.exe
Token: SeSystemEnvironmentPrivilege	1156	wmic.exe
Token: SeRemoteShutdownPrivilege	1156	wmic.exe
Token: SeUndockPrivilege	1156	wmic.exe
Token: SeManageVolumePrivilege	1156	wmic.exe
Token: 33	1156	wmic.exe
Token: 34	1156	wmic.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 2812	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	30
PID 2876 wrote to memory of 2812	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	30
PID 2876 wrote to memory of 2812	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	30
PID 2876 wrote to memory of 2244	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	33
PID 2876 wrote to memory of 2244	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	33
PID 2876 wrote to memory of 2244	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	33
PID 2876 wrote to memory of 2560	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	35
PID 2876 wrote to memory of 2560	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	35
PID 2876 wrote to memory of 2560	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	35
PID 2876 wrote to memory of 1248	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	37
PID 2876 wrote to memory of 1248	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	37
PID 2876 wrote to memory of 1248	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	37
PID 2876 wrote to memory of 2904	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	39
PID 2876 wrote to memory of 2904	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	39
PID 2876 wrote to memory of 2904	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	39
PID 2876 wrote to memory of 1156	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	41
PID 2876 wrote to memory of 1156	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	41
PID 2876 wrote to memory of 1156	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	41
PID 2876 wrote to memory of 2108	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	43
PID 2876 wrote to memory of 2108	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	43
PID 2876 wrote to memory of 2108	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	43
PID 2876 wrote to memory of 1932	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	45
PID 2876 wrote to memory of 1932	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	45
PID 2876 wrote to memory of 1932	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	45
PID 2876 wrote to memory of 540	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	47
PID 2876 wrote to memory of 540	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	47
PID 2876 wrote to memory of 540	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	47
PID 2876 wrote to memory of 2068	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	49
PID 2876 wrote to memory of 2068	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	49
PID 2876 wrote to memory of 2068	2876	8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe	49

C:\Users\Admin\AppData\Local\Temp\8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe
"C:\Users\Admin\AppData\Local\Temp\8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2812
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\8d8bccb8e3ba54a5168e2c18becc4bece5bca90edb430f16c79279cf89a45874.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2244
- 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:2560
- 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:1248
- 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:2904
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1156
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2108
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1932
- 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:2068

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
fe64d9487417800590895b15c0b86c68

SHA1
43a22955edb873668c8c1a3092abcd469db10f9e

SHA256
ec29273c30418e7ff319c6d80fe939f1149fb560c7ceb1f40e85b0494128b9e2

SHA512
34be71b45b5efb75c84cc14ef5d896a5d689f67e50acee02f563833d3ae34e3215da001a9fe2581ed51f9d420be63ed8d883ba3dc9653fac4f01590820f42f22

Download Submit
memory/540-46-0x0000000001E60000-0x0000000001E68000-memory.dmp

Filesize
32KB

Download
memory/540-45-0x000000001B220000-0x000000001B502000-memory.dmp

Filesize
2.9MB

Download
memory/2244-7-0x000000001B1C0000-0x000000001B4A2000-memory.dmp

Filesize
2.9MB

Download
memory/2244-8-0x0000000002590000-0x0000000002598000-memory.dmp

Filesize
32KB

Download
memory/2560-14-0x000000001B1C0000-0x000000001B4A2000-memory.dmp

Filesize
2.9MB

Download
memory/2560-15-0x0000000002610000-0x0000000002618000-memory.dmp

Filesize
32KB

Download
memory/2876-29-0x000007FEF5763000-0x000007FEF5764000-memory.dmp

Filesize
4KB

Download
memory/2876-0-0x000007FEF5763000-0x000007FEF5764000-memory.dmp

Filesize
4KB

Download
memory/2876-39-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2876-2-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2876-1-0x0000000000E20000-0x0000000000E60000-memory.dmp

Filesize
256KB

Download
memory/2876-50-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download