umbral | 6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548

Analysis

max time kernel
106s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-09-2024 21:55

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General

Target

6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe
Size

231KB
MD5

bf88437e7f3d92105674eb1d1898ad60
SHA1

b05bac32adf9ac7e6d43ea6125e3990d8eab252a
SHA256

6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548
SHA512

8b97ec767712e8a2e88c22c9ead351a17c21b2b6714b65d440bd9d3555601b7055209ad6dca70d5c4c06425a67dcfba15d6cc6c773d26ee0997c911dc29f212f
SSDEEP

6144:RloZMJrIkd8g+EtXHkv/iD4vqU5EKtFunr20VJggTI8e1mEi:joZCL+EP8vqU5EKtFunr20VJgH6

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2132-1-0x0000000000D20000-0x0000000000D60000-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
2760	powershell.exe
2640	powershell.exe
2636	powershell.exe
348	powershell.exe

Deletes itself 1 IoCs

pid	Process
2820	cmd.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

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
2820	cmd.exe
840	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2804	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
840	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe
2760	powershell.exe
2640	powershell.exe
2636	powershell.exe
1828	powershell.exe
348	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe
Token: SeIncreaseQuotaPrivilege	2188	wmic.exe
Token: SeSecurityPrivilege	2188	wmic.exe
Token: SeTakeOwnershipPrivilege	2188	wmic.exe
Token: SeLoadDriverPrivilege	2188	wmic.exe
Token: SeSystemProfilePrivilege	2188	wmic.exe
Token: SeSystemtimePrivilege	2188	wmic.exe
Token: SeProfSingleProcessPrivilege	2188	wmic.exe
Token: SeIncBasePriorityPrivilege	2188	wmic.exe
Token: SeCreatePagefilePrivilege	2188	wmic.exe
Token: SeBackupPrivilege	2188	wmic.exe
Token: SeRestorePrivilege	2188	wmic.exe
Token: SeShutdownPrivilege	2188	wmic.exe
Token: SeDebugPrivilege	2188	wmic.exe
Token: SeSystemEnvironmentPrivilege	2188	wmic.exe
Token: SeRemoteShutdownPrivilege	2188	wmic.exe
Token: SeUndockPrivilege	2188	wmic.exe
Token: SeManageVolumePrivilege	2188	wmic.exe
Token: 33	2188	wmic.exe
Token: 34	2188	wmic.exe
Token: 35	2188	wmic.exe
Token: SeIncreaseQuotaPrivilege	2188	wmic.exe
Token: SeSecurityPrivilege	2188	wmic.exe
Token: SeTakeOwnershipPrivilege	2188	wmic.exe
Token: SeLoadDriverPrivilege	2188	wmic.exe
Token: SeSystemProfilePrivilege	2188	wmic.exe
Token: SeSystemtimePrivilege	2188	wmic.exe
Token: SeProfSingleProcessPrivilege	2188	wmic.exe
Token: SeIncBasePriorityPrivilege	2188	wmic.exe
Token: SeCreatePagefilePrivilege	2188	wmic.exe
Token: SeBackupPrivilege	2188	wmic.exe
Token: SeRestorePrivilege	2188	wmic.exe
Token: SeShutdownPrivilege	2188	wmic.exe
Token: SeDebugPrivilege	2188	wmic.exe
Token: SeSystemEnvironmentPrivilege	2188	wmic.exe
Token: SeRemoteShutdownPrivilege	2188	wmic.exe
Token: SeUndockPrivilege	2188	wmic.exe
Token: SeManageVolumePrivilege	2188	wmic.exe
Token: 33	2188	wmic.exe
Token: 34	2188	wmic.exe
Token: 35	2188	wmic.exe
Token: SeDebugPrivilege	2760	powershell.exe
Token: SeDebugPrivilege	2640	powershell.exe
Token: SeDebugPrivilege	2636	powershell.exe
Token: SeDebugPrivilege	1828	powershell.exe
Token: SeIncreaseQuotaPrivilege	1008	wmic.exe
Token: SeSecurityPrivilege	1008	wmic.exe
Token: SeTakeOwnershipPrivilege	1008	wmic.exe
Token: SeLoadDriverPrivilege	1008	wmic.exe
Token: SeSystemProfilePrivilege	1008	wmic.exe
Token: SeSystemtimePrivilege	1008	wmic.exe
Token: SeProfSingleProcessPrivilege	1008	wmic.exe
Token: SeIncBasePriorityPrivilege	1008	wmic.exe
Token: SeCreatePagefilePrivilege	1008	wmic.exe
Token: SeBackupPrivilege	1008	wmic.exe
Token: SeRestorePrivilege	1008	wmic.exe
Token: SeShutdownPrivilege	1008	wmic.exe
Token: SeDebugPrivilege	1008	wmic.exe
Token: SeSystemEnvironmentPrivilege	1008	wmic.exe
Token: SeRemoteShutdownPrivilege	1008	wmic.exe
Token: SeUndockPrivilege	1008	wmic.exe
Token: SeManageVolumePrivilege	1008	wmic.exe
Token: 33	1008	wmic.exe
Token: 34	1008	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2188	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	31
PID 2132 wrote to memory of 2188	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	31
PID 2132 wrote to memory of 2188	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	31
PID 2132 wrote to memory of 2908	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	34
PID 2132 wrote to memory of 2908	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	34
PID 2132 wrote to memory of 2908	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	34
PID 2132 wrote to memory of 2760	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	36
PID 2132 wrote to memory of 2760	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	36
PID 2132 wrote to memory of 2760	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	36
PID 2132 wrote to memory of 2640	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	38
PID 2132 wrote to memory of 2640	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	38
PID 2132 wrote to memory of 2640	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	38
PID 2132 wrote to memory of 2636	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	40
PID 2132 wrote to memory of 2636	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	40
PID 2132 wrote to memory of 2636	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	40
PID 2132 wrote to memory of 1828	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	42
PID 2132 wrote to memory of 1828	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	42
PID 2132 wrote to memory of 1828	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	42
PID 2132 wrote to memory of 1008	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	44
PID 2132 wrote to memory of 1008	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	44
PID 2132 wrote to memory of 1008	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	44
PID 2132 wrote to memory of 1872	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	46
PID 2132 wrote to memory of 1872	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	46
PID 2132 wrote to memory of 1872	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	46
PID 2132 wrote to memory of 1884	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	48
PID 2132 wrote to memory of 1884	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	48
PID 2132 wrote to memory of 1884	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	48
PID 2132 wrote to memory of 348	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	50
PID 2132 wrote to memory of 348	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	50
PID 2132 wrote to memory of 348	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	50
PID 2132 wrote to memory of 2804	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	52
PID 2132 wrote to memory of 2804	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	52
PID 2132 wrote to memory of 2804	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	52
PID 2132 wrote to memory of 2820	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	54
PID 2132 wrote to memory of 2820	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	54
PID 2132 wrote to memory of 2820	2132	6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe	54
PID 2820 wrote to memory of 840	2820	cmd.exe	56
PID 2820 wrote to memory of 840	2820	cmd.exe	56
PID 2820 wrote to memory of 840	2820	cmd.exe	56

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2908	attrib.exe

C:\Users\Admin\AppData\Local\Temp\6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe
"C:\Users\Admin\AppData\Local\Temp\6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2188
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe"
  2⤵
  - Views/modifies file attributes
  PID:2908
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2760
- 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:2640
- 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:2636
- 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:1828
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1008
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1872
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1884
- 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:348
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2804
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2820
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:840

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
cc18a5a020536165156c757055dbb020

SHA1
6b114f4e3b6c0e8d2e1ecff088e37a50a6992bfd

SHA256
f93f9045407b25f3e2013daaef79624cbc11d6adfc98d94aa80429044dfa1b9c

SHA512
e6cf9f28ce1a930b2f37132c418919726c6851925bdd59d2f7926b22565300a1ba31fbebcd5def81ebd0cf4c23e90284fbb70c95287eb75ae69e9745fcd4c9ae

Download Submit
memory/348-41-0x00000000022D0000-0x00000000022D8000-memory.dmp

Filesize
32KB

Download
memory/2132-0-0x000007FEF6723000-0x000007FEF6724000-memory.dmp

Filesize
4KB

Download
memory/2132-1-0x0000000000D20000-0x0000000000D60000-memory.dmp

Filesize
256KB

Download
memory/2132-2-0x000007FEF6720000-0x000007FEF710C000-memory.dmp

Filesize
9.9MB

Download
memory/2132-44-0x000007FEF6720000-0x000007FEF710C000-memory.dmp

Filesize
9.9MB

Download
memory/2640-14-0x000000001B560000-0x000000001B842000-memory.dmp

Filesize
2.9MB

Download
memory/2640-15-0x00000000026A0000-0x00000000026A8000-memory.dmp

Filesize
32KB

Download
memory/2760-7-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2760-8-0x0000000002910000-0x0000000002918000-memory.dmp

Filesize
32KB

Download