umbral | 8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/01/2025, 06:17

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General

Target

8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe
Size

231KB
MD5

729cf3dc131a564c3384ec6a3cf387ce
SHA1

3401e42954a2c5de84d2c32ab97e69db54144bd1
SHA256

8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27
SHA512

9bdf9ac4ace3dbef33adaff6db5e5a157f1f7967613c88b26e51e5c7032b20018007bbc6726812482e2dcf8c8ef8f0a62eb779efe4cf0e893f215faab70bf351
SSDEEP

6144:RloZM+rIkd8g+EtXHkv/iD4+Qz/jpaC93op7mGz2tb8e1moJboi:joZtL+EP8+Qz/jpaC93op7mGz6zbR

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1980-1-0x0000000000FD0000-0x0000000001010000-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
2676	powershell.exe
2952	powershell.exe
2572	powershell.exe
1944	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe

Deletes itself 1 IoCs

pid	Process
2964	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
2964	cmd.exe
3016	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2068	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3016	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe
2676	powershell.exe
2572	powershell.exe
1944	powershell.exe
1100	powershell.exe
2952	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe
Token: SeIncreaseQuotaPrivilege	2276	wmic.exe
Token: SeSecurityPrivilege	2276	wmic.exe
Token: SeTakeOwnershipPrivilege	2276	wmic.exe
Token: SeLoadDriverPrivilege	2276	wmic.exe
Token: SeSystemProfilePrivilege	2276	wmic.exe
Token: SeSystemtimePrivilege	2276	wmic.exe
Token: SeProfSingleProcessPrivilege	2276	wmic.exe
Token: SeIncBasePriorityPrivilege	2276	wmic.exe
Token: SeCreatePagefilePrivilege	2276	wmic.exe
Token: SeBackupPrivilege	2276	wmic.exe
Token: SeRestorePrivilege	2276	wmic.exe
Token: SeShutdownPrivilege	2276	wmic.exe
Token: SeDebugPrivilege	2276	wmic.exe
Token: SeSystemEnvironmentPrivilege	2276	wmic.exe
Token: SeRemoteShutdownPrivilege	2276	wmic.exe
Token: SeUndockPrivilege	2276	wmic.exe
Token: SeManageVolumePrivilege	2276	wmic.exe
Token: 33	2276	wmic.exe
Token: 34	2276	wmic.exe
Token: 35	2276	wmic.exe
Token: SeIncreaseQuotaPrivilege	2276	wmic.exe
Token: SeSecurityPrivilege	2276	wmic.exe
Token: SeTakeOwnershipPrivilege	2276	wmic.exe
Token: SeLoadDriverPrivilege	2276	wmic.exe
Token: SeSystemProfilePrivilege	2276	wmic.exe
Token: SeSystemtimePrivilege	2276	wmic.exe
Token: SeProfSingleProcessPrivilege	2276	wmic.exe
Token: SeIncBasePriorityPrivilege	2276	wmic.exe
Token: SeCreatePagefilePrivilege	2276	wmic.exe
Token: SeBackupPrivilege	2276	wmic.exe
Token: SeRestorePrivilege	2276	wmic.exe
Token: SeShutdownPrivilege	2276	wmic.exe
Token: SeDebugPrivilege	2276	wmic.exe
Token: SeSystemEnvironmentPrivilege	2276	wmic.exe
Token: SeRemoteShutdownPrivilege	2276	wmic.exe
Token: SeUndockPrivilege	2276	wmic.exe
Token: SeManageVolumePrivilege	2276	wmic.exe
Token: 33	2276	wmic.exe
Token: 34	2276	wmic.exe
Token: 35	2276	wmic.exe
Token: SeDebugPrivilege	2676	powershell.exe
Token: SeDebugPrivilege	2572	powershell.exe
Token: SeDebugPrivilege	1944	powershell.exe
Token: SeDebugPrivilege	1100	powershell.exe
Token: SeIncreaseQuotaPrivilege	1784	wmic.exe
Token: SeSecurityPrivilege	1784	wmic.exe
Token: SeTakeOwnershipPrivilege	1784	wmic.exe
Token: SeLoadDriverPrivilege	1784	wmic.exe
Token: SeSystemProfilePrivilege	1784	wmic.exe
Token: SeSystemtimePrivilege	1784	wmic.exe
Token: SeProfSingleProcessPrivilege	1784	wmic.exe
Token: SeIncBasePriorityPrivilege	1784	wmic.exe
Token: SeCreatePagefilePrivilege	1784	wmic.exe
Token: SeBackupPrivilege	1784	wmic.exe
Token: SeRestorePrivilege	1784	wmic.exe
Token: SeShutdownPrivilege	1784	wmic.exe
Token: SeDebugPrivilege	1784	wmic.exe
Token: SeSystemEnvironmentPrivilege	1784	wmic.exe
Token: SeRemoteShutdownPrivilege	1784	wmic.exe
Token: SeUndockPrivilege	1784	wmic.exe
Token: SeManageVolumePrivilege	1784	wmic.exe
Token: 33	1784	wmic.exe
Token: 34	1784	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 2276	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	31
PID 1980 wrote to memory of 2276	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	31
PID 1980 wrote to memory of 2276	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	31
PID 1980 wrote to memory of 2864	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	34
PID 1980 wrote to memory of 2864	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	34
PID 1980 wrote to memory of 2864	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	34
PID 1980 wrote to memory of 2676	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	36
PID 1980 wrote to memory of 2676	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	36
PID 1980 wrote to memory of 2676	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	36
PID 1980 wrote to memory of 2572	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	38
PID 1980 wrote to memory of 2572	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	38
PID 1980 wrote to memory of 2572	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	38
PID 1980 wrote to memory of 1944	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	40
PID 1980 wrote to memory of 1944	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	40
PID 1980 wrote to memory of 1944	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	40
PID 1980 wrote to memory of 1100	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	42
PID 1980 wrote to memory of 1100	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	42
PID 1980 wrote to memory of 1100	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	42
PID 1980 wrote to memory of 1784	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	44
PID 1980 wrote to memory of 1784	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	44
PID 1980 wrote to memory of 1784	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	44
PID 1980 wrote to memory of 2648	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	46
PID 1980 wrote to memory of 2648	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	46
PID 1980 wrote to memory of 2648	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	46
PID 1980 wrote to memory of 348	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	48
PID 1980 wrote to memory of 348	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	48
PID 1980 wrote to memory of 348	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	48
PID 1980 wrote to memory of 2952	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	50
PID 1980 wrote to memory of 2952	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	50
PID 1980 wrote to memory of 2952	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	50
PID 1980 wrote to memory of 2068	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	52
PID 1980 wrote to memory of 2068	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	52
PID 1980 wrote to memory of 2068	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	52
PID 1980 wrote to memory of 2964	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	54
PID 1980 wrote to memory of 2964	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	54
PID 1980 wrote to memory of 2964	1980	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	54
PID 2964 wrote to memory of 3016	2964	cmd.exe	56
PID 2964 wrote to memory of 3016	2964	cmd.exe	56
PID 2964 wrote to memory of 3016	2964	cmd.exe	56

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2864	attrib.exe

C:\Users\Admin\AppData\Local\Temp\8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe
"C:\Users\Admin\AppData\Local\Temp\8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2276
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe"
  2⤵
  - Views/modifies file attributes
  PID:2864
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2676
- 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:2572
- 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:1944
- 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:1100
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1784
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2648
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:348
- 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:2952
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2068
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2964
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3016

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
f8aa8e26e86f881a042e4e2abc597069

SHA1
1633b42183d7ea14b171fbc27f4ac776bcebe3f5

SHA256
bd224e45eaeacede857c87faa91278d35f29a15635252880125c6b790345aaba

SHA512
9590b525352d98f9c98d2a3f65985b89eae058f5899a77344364e299433f30474ccde266f261c25793224333f167a567d45359bacf37e3afc88ddf23709761d9

Download Submit
memory/1980-0-0x000007FEF57D3000-0x000007FEF57D4000-memory.dmp

Filesize
4KB

Download
memory/1980-1-0x0000000000FD0000-0x0000000001010000-memory.dmp

Filesize
256KB

Download
memory/1980-2-0x000007FEF57D0000-0x000007FEF61BC000-memory.dmp

Filesize
9.9MB

Download
memory/1980-47-0x000007FEF57D0000-0x000007FEF61BC000-memory.dmp

Filesize
9.9MB

Download
memory/2572-14-0x000000001B4E0000-0x000000001B7C2000-memory.dmp

Filesize
2.9MB

Download
memory/2572-15-0x00000000028F0000-0x00000000028F8000-memory.dmp

Filesize
32KB

Download
memory/2676-7-0x000000001B5E0000-0x000000001B8C2000-memory.dmp

Filesize
2.9MB

Download
memory/2676-8-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download
memory/2952-43-0x0000000002080000-0x0000000002088000-memory.dmp

Filesize
32KB

Download