umbral | df99537694b2fe9e5732fad10d520af72f26f4654bee5221fb46f1eaeaaf9bcf

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
18-08-2024 21:44

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General

Target

triggerbot_beta.exe
Size

492KB
MD5

c6082923c754876542e9e9819763aa00
SHA1

1f6958604f623c279751c0ae84e1bbc46548de65
SHA256

df99537694b2fe9e5732fad10d520af72f26f4654bee5221fb46f1eaeaaf9bcf
SHA512

e65208f424b8da472eb0a30ec38d57a57e85e2f9247c31157e75e3a08710075ef02cfc25a650bb395326c9115d0f93d177472aeefeb76f54545d1b264b49ece5
SSDEEP

6144:XloZM+rIkd8g+EtXHkv/iD4NkxjfVeGJqMFXSy3DoZb8e1mNiE:1oZtL+EP8NkxjfVeGJqMFXSy3DQrE

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2604-1-0x0000000000DB0000-0x0000000000E30000-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
2872	powershell.exe
2240	powershell.exe
3040	powershell.exe
2856	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Deletes itself 1 IoCs

pid	Process
2124	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
7	discord.com
8	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
4	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
2124	cmd.exe
2112	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
840	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2112	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2604	triggerbot_beta.exe
2872	powershell.exe
2856	powershell.exe
2240	powershell.exe
2432	powershell.exe
3040	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	triggerbot_beta.exe
Token: SeIncreaseQuotaPrivilege	2832	wmic.exe
Token: SeSecurityPrivilege	2832	wmic.exe
Token: SeTakeOwnershipPrivilege	2832	wmic.exe
Token: SeLoadDriverPrivilege	2832	wmic.exe
Token: SeSystemProfilePrivilege	2832	wmic.exe
Token: SeSystemtimePrivilege	2832	wmic.exe
Token: SeProfSingleProcessPrivilege	2832	wmic.exe
Token: SeIncBasePriorityPrivilege	2832	wmic.exe
Token: SeCreatePagefilePrivilege	2832	wmic.exe
Token: SeBackupPrivilege	2832	wmic.exe
Token: SeRestorePrivilege	2832	wmic.exe
Token: SeShutdownPrivilege	2832	wmic.exe
Token: SeDebugPrivilege	2832	wmic.exe
Token: SeSystemEnvironmentPrivilege	2832	wmic.exe
Token: SeRemoteShutdownPrivilege	2832	wmic.exe
Token: SeUndockPrivilege	2832	wmic.exe
Token: SeManageVolumePrivilege	2832	wmic.exe
Token: 33	2832	wmic.exe
Token: 34	2832	wmic.exe
Token: 35	2832	wmic.exe
Token: SeIncreaseQuotaPrivilege	2832	wmic.exe
Token: SeSecurityPrivilege	2832	wmic.exe
Token: SeTakeOwnershipPrivilege	2832	wmic.exe
Token: SeLoadDriverPrivilege	2832	wmic.exe
Token: SeSystemProfilePrivilege	2832	wmic.exe
Token: SeSystemtimePrivilege	2832	wmic.exe
Token: SeProfSingleProcessPrivilege	2832	wmic.exe
Token: SeIncBasePriorityPrivilege	2832	wmic.exe
Token: SeCreatePagefilePrivilege	2832	wmic.exe
Token: SeBackupPrivilege	2832	wmic.exe
Token: SeRestorePrivilege	2832	wmic.exe
Token: SeShutdownPrivilege	2832	wmic.exe
Token: SeDebugPrivilege	2832	wmic.exe
Token: SeSystemEnvironmentPrivilege	2832	wmic.exe
Token: SeRemoteShutdownPrivilege	2832	wmic.exe
Token: SeUndockPrivilege	2832	wmic.exe
Token: SeManageVolumePrivilege	2832	wmic.exe
Token: 33	2832	wmic.exe
Token: 34	2832	wmic.exe
Token: 35	2832	wmic.exe
Token: SeDebugPrivilege	2872	powershell.exe
Token: SeDebugPrivilege	2856	powershell.exe
Token: SeDebugPrivilege	2240	powershell.exe
Token: SeDebugPrivilege	2432	powershell.exe
Token: SeIncreaseQuotaPrivilege	2988	wmic.exe
Token: SeSecurityPrivilege	2988	wmic.exe
Token: SeTakeOwnershipPrivilege	2988	wmic.exe
Token: SeLoadDriverPrivilege	2988	wmic.exe
Token: SeSystemProfilePrivilege	2988	wmic.exe
Token: SeSystemtimePrivilege	2988	wmic.exe
Token: SeProfSingleProcessPrivilege	2988	wmic.exe
Token: SeIncBasePriorityPrivilege	2988	wmic.exe
Token: SeCreatePagefilePrivilege	2988	wmic.exe
Token: SeBackupPrivilege	2988	wmic.exe
Token: SeRestorePrivilege	2988	wmic.exe
Token: SeShutdownPrivilege	2988	wmic.exe
Token: SeDebugPrivilege	2988	wmic.exe
Token: SeSystemEnvironmentPrivilege	2988	wmic.exe
Token: SeRemoteShutdownPrivilege	2988	wmic.exe
Token: SeUndockPrivilege	2988	wmic.exe
Token: SeManageVolumePrivilege	2988	wmic.exe
Token: 33	2988	wmic.exe
Token: 34	2988	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2832	2604	triggerbot_beta.exe	30
PID 2604 wrote to memory of 2832	2604	triggerbot_beta.exe	30
PID 2604 wrote to memory of 2832	2604	triggerbot_beta.exe	30
PID 2604 wrote to memory of 2920	2604	triggerbot_beta.exe	33
PID 2604 wrote to memory of 2920	2604	triggerbot_beta.exe	33
PID 2604 wrote to memory of 2920	2604	triggerbot_beta.exe	33
PID 2604 wrote to memory of 2872	2604	triggerbot_beta.exe	35
PID 2604 wrote to memory of 2872	2604	triggerbot_beta.exe	35
PID 2604 wrote to memory of 2872	2604	triggerbot_beta.exe	35
PID 2604 wrote to memory of 2856	2604	triggerbot_beta.exe	37
PID 2604 wrote to memory of 2856	2604	triggerbot_beta.exe	37
PID 2604 wrote to memory of 2856	2604	triggerbot_beta.exe	37
PID 2604 wrote to memory of 2240	2604	triggerbot_beta.exe	39
PID 2604 wrote to memory of 2240	2604	triggerbot_beta.exe	39
PID 2604 wrote to memory of 2240	2604	triggerbot_beta.exe	39
PID 2604 wrote to memory of 2432	2604	triggerbot_beta.exe	41
PID 2604 wrote to memory of 2432	2604	triggerbot_beta.exe	41
PID 2604 wrote to memory of 2432	2604	triggerbot_beta.exe	41
PID 2604 wrote to memory of 2988	2604	triggerbot_beta.exe	43
PID 2604 wrote to memory of 2988	2604	triggerbot_beta.exe	43
PID 2604 wrote to memory of 2988	2604	triggerbot_beta.exe	43
PID 2604 wrote to memory of 1960	2604	triggerbot_beta.exe	45
PID 2604 wrote to memory of 1960	2604	triggerbot_beta.exe	45
PID 2604 wrote to memory of 1960	2604	triggerbot_beta.exe	45
PID 2604 wrote to memory of 2964	2604	triggerbot_beta.exe	47
PID 2604 wrote to memory of 2964	2604	triggerbot_beta.exe	47
PID 2604 wrote to memory of 2964	2604	triggerbot_beta.exe	47
PID 2604 wrote to memory of 3040	2604	triggerbot_beta.exe	49
PID 2604 wrote to memory of 3040	2604	triggerbot_beta.exe	49
PID 2604 wrote to memory of 3040	2604	triggerbot_beta.exe	49
PID 2604 wrote to memory of 840	2604	triggerbot_beta.exe	51
PID 2604 wrote to memory of 840	2604	triggerbot_beta.exe	51
PID 2604 wrote to memory of 840	2604	triggerbot_beta.exe	51
PID 2604 wrote to memory of 2124	2604	triggerbot_beta.exe	53
PID 2604 wrote to memory of 2124	2604	triggerbot_beta.exe	53
PID 2604 wrote to memory of 2124	2604	triggerbot_beta.exe	53
PID 2124 wrote to memory of 2112	2124	cmd.exe	55
PID 2124 wrote to memory of 2112	2124	cmd.exe	55
PID 2124 wrote to memory of 2112	2124	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2920	attrib.exe

C:\Users\Admin\AppData\Local\Temp\triggerbot_beta.exe
"C:\Users\Admin\AppData\Local\Temp\triggerbot_beta.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2832
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\triggerbot_beta.exe"
  2⤵
  - Views/modifies file attributes
  PID:2920
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\triggerbot_beta.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:2856
- 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:2240
- 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:2432
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2988
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1960
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2964
- 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:3040
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:840
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\triggerbot_beta.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2124
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2112

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
f1505f82c5fb9f60664ecafc7bc7e9df

SHA1
a1436bd1cf0f8feb4a6360442ad74bd9619c816a

SHA256
24c7e5e1513d393c60440055f5488bc01a8ff6981fca333f29f1835e2a48d119

SHA512
59893e39f31cce06e0c315f358d96e9240f134f9ac37a51cbf49b0cfad790cf65690aab20e39852e4735530c055ca83f4b2a4d05429837d76ba682522e3e7dfe

Download Submit
memory/2604-0-0x000007FEF5763000-0x000007FEF5764000-memory.dmp

Filesize
4KB

Download
memory/2604-1-0x0000000000DB0000-0x0000000000E30000-memory.dmp

Filesize
512KB

Download
memory/2604-2-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2604-46-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2856-14-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

Filesize
2.9MB

Download
memory/2856-15-0x00000000022A0000-0x00000000022A8000-memory.dmp

Filesize
32KB

Download
memory/2872-7-0x000000001B620000-0x000000001B902000-memory.dmp

Filesize
2.9MB

Download
memory/2872-8-0x0000000001F00000-0x0000000001F08000-memory.dmp

Filesize
32KB

Download
memory/3040-42-0x00000000022D0000-0x00000000022D8000-memory.dmp

Filesize
32KB

Download