umbral | c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37d

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
07/01/2025, 08:41

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General

Target

c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe
Size

229KB
MD5

528f26b2d46cd04b6fcb6fafcb3abf40
SHA1

857455c1dcdcd7bceabfff1f532ee3714e743245
SHA256

c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37d
SHA512

20c0c8b69d8fb6045ac3f2e83fca527ac99a68375e62b4b3d8d66daa402ddfad1640f63721871aa2254bf71bb58beae2ef30a50154ef9dc6fa6c4a35999d8c5a
SSDEEP

6144:FloZM+rIkd8g+EtXHkv/iD4AFyuMS1NmYzus9x4uab8e1mti:HoZtL+EP8AFyuMS1NmYzus9x45j

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2336-1-0x0000000001100000-0x0000000001140000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2716	powershell.exe
2612	powershell.exe
1076	powershell.exe
3028	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe

Deletes itself 1 IoCs

pid	Process
2132	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
2132	cmd.exe
2144	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2940	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2144	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe
3028	powershell.exe
2716	powershell.exe
2612	powershell.exe
1452	powershell.exe
1076	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe
Token: SeIncreaseQuotaPrivilege	2488	wmic.exe
Token: SeSecurityPrivilege	2488	wmic.exe
Token: SeTakeOwnershipPrivilege	2488	wmic.exe
Token: SeLoadDriverPrivilege	2488	wmic.exe
Token: SeSystemProfilePrivilege	2488	wmic.exe
Token: SeSystemtimePrivilege	2488	wmic.exe
Token: SeProfSingleProcessPrivilege	2488	wmic.exe
Token: SeIncBasePriorityPrivilege	2488	wmic.exe
Token: SeCreatePagefilePrivilege	2488	wmic.exe
Token: SeBackupPrivilege	2488	wmic.exe
Token: SeRestorePrivilege	2488	wmic.exe
Token: SeShutdownPrivilege	2488	wmic.exe
Token: SeDebugPrivilege	2488	wmic.exe
Token: SeSystemEnvironmentPrivilege	2488	wmic.exe
Token: SeRemoteShutdownPrivilege	2488	wmic.exe
Token: SeUndockPrivilege	2488	wmic.exe
Token: SeManageVolumePrivilege	2488	wmic.exe
Token: 33	2488	wmic.exe
Token: 34	2488	wmic.exe
Token: 35	2488	wmic.exe
Token: SeIncreaseQuotaPrivilege	2488	wmic.exe
Token: SeSecurityPrivilege	2488	wmic.exe
Token: SeTakeOwnershipPrivilege	2488	wmic.exe
Token: SeLoadDriverPrivilege	2488	wmic.exe
Token: SeSystemProfilePrivilege	2488	wmic.exe
Token: SeSystemtimePrivilege	2488	wmic.exe
Token: SeProfSingleProcessPrivilege	2488	wmic.exe
Token: SeIncBasePriorityPrivilege	2488	wmic.exe
Token: SeCreatePagefilePrivilege	2488	wmic.exe
Token: SeBackupPrivilege	2488	wmic.exe
Token: SeRestorePrivilege	2488	wmic.exe
Token: SeShutdownPrivilege	2488	wmic.exe
Token: SeDebugPrivilege	2488	wmic.exe
Token: SeSystemEnvironmentPrivilege	2488	wmic.exe
Token: SeRemoteShutdownPrivilege	2488	wmic.exe
Token: SeUndockPrivilege	2488	wmic.exe
Token: SeManageVolumePrivilege	2488	wmic.exe
Token: 33	2488	wmic.exe
Token: 34	2488	wmic.exe
Token: 35	2488	wmic.exe
Token: SeDebugPrivilege	3028	powershell.exe
Token: SeDebugPrivilege	2716	powershell.exe
Token: SeDebugPrivilege	2612	powershell.exe
Token: SeDebugPrivilege	1452	powershell.exe
Token: SeIncreaseQuotaPrivilege	2828	wmic.exe
Token: SeSecurityPrivilege	2828	wmic.exe
Token: SeTakeOwnershipPrivilege	2828	wmic.exe
Token: SeLoadDriverPrivilege	2828	wmic.exe
Token: SeSystemProfilePrivilege	2828	wmic.exe
Token: SeSystemtimePrivilege	2828	wmic.exe
Token: SeProfSingleProcessPrivilege	2828	wmic.exe
Token: SeIncBasePriorityPrivilege	2828	wmic.exe
Token: SeCreatePagefilePrivilege	2828	wmic.exe
Token: SeBackupPrivilege	2828	wmic.exe
Token: SeRestorePrivilege	2828	wmic.exe
Token: SeShutdownPrivilege	2828	wmic.exe
Token: SeDebugPrivilege	2828	wmic.exe
Token: SeSystemEnvironmentPrivilege	2828	wmic.exe
Token: SeRemoteShutdownPrivilege	2828	wmic.exe
Token: SeUndockPrivilege	2828	wmic.exe
Token: SeManageVolumePrivilege	2828	wmic.exe
Token: 33	2828	wmic.exe
Token: 34	2828	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2488	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	30
PID 2336 wrote to memory of 2488	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	30
PID 2336 wrote to memory of 2488	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	30
PID 2336 wrote to memory of 2868	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	33
PID 2336 wrote to memory of 2868	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	33
PID 2336 wrote to memory of 2868	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	33
PID 2336 wrote to memory of 3028	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	35
PID 2336 wrote to memory of 3028	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	35
PID 2336 wrote to memory of 3028	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	35
PID 2336 wrote to memory of 2716	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	37
PID 2336 wrote to memory of 2716	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	37
PID 2336 wrote to memory of 2716	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	37
PID 2336 wrote to memory of 2612	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	39
PID 2336 wrote to memory of 2612	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	39
PID 2336 wrote to memory of 2612	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	39
PID 2336 wrote to memory of 1452	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	41
PID 2336 wrote to memory of 1452	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	41
PID 2336 wrote to memory of 1452	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	41
PID 2336 wrote to memory of 2828	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	43
PID 2336 wrote to memory of 2828	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	43
PID 2336 wrote to memory of 2828	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	43
PID 2336 wrote to memory of 1112	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	45
PID 2336 wrote to memory of 1112	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	45
PID 2336 wrote to memory of 1112	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	45
PID 2336 wrote to memory of 1192	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	47
PID 2336 wrote to memory of 1192	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	47
PID 2336 wrote to memory of 1192	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	47
PID 2336 wrote to memory of 1076	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	49
PID 2336 wrote to memory of 1076	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	49
PID 2336 wrote to memory of 1076	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	49
PID 2336 wrote to memory of 2940	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	51
PID 2336 wrote to memory of 2940	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	51
PID 2336 wrote to memory of 2940	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	51
PID 2336 wrote to memory of 2132	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	53
PID 2336 wrote to memory of 2132	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	53
PID 2336 wrote to memory of 2132	2336	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	53
PID 2132 wrote to memory of 2144	2132	cmd.exe	55
PID 2132 wrote to memory of 2144	2132	cmd.exe	55
PID 2132 wrote to memory of 2144	2132	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2868	attrib.exe

C:\Users\Admin\AppData\Local\Temp\c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe
"C:\Users\Admin\AppData\Local\Temp\c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2488
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe"
  2⤵
  - Views/modifies file attributes
  PID:2868
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3028
- 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:2716
- 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:2612
- 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:1452
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2828
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1112
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1192
- 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:1076
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2940
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2144

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\EDQVR23JQ19DZWGAQM9I.temp

Filesize
7KB

MD5
8e1553bde7fa004bed84b326ad4db13d

SHA1
e8a214596860078bc5c5e24f757f4dfe7e0bc6da

SHA256
fd754b2672ccc5ac669605b69345fa3d5f1f02a99ff70ebca9bbfccc6bf023e6

SHA512
6e973424dc4e1984f2a74cb06bdb2023c2d18627017174d3b2a8d5012edaf5849a06cbda42e3d089881edb1baf0d592b3837d7a69e4f4d1a4dae682fa66f4efc

Download Submit
memory/1076-43-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/2336-0-0x000007FEF5A03000-0x000007FEF5A04000-memory.dmp

Filesize
4KB

Download
memory/2336-1-0x0000000001100000-0x0000000001140000-memory.dmp

Filesize
256KB

Download
memory/2336-2-0x000007FEF5A00000-0x000007FEF63EC000-memory.dmp

Filesize
9.9MB

Download
memory/2336-47-0x000007FEF5A00000-0x000007FEF63EC000-memory.dmp

Filesize
9.9MB

Download
memory/2716-14-0x000000001B500000-0x000000001B7E2000-memory.dmp

Filesize
2.9MB

Download
memory/2716-15-0x0000000001E00000-0x0000000001E08000-memory.dmp

Filesize
32KB

Download
memory/3028-7-0x000000001B610000-0x000000001B8F2000-memory.dmp

Filesize
2.9MB

Download
memory/3028-8-0x0000000002350000-0x0000000002358000-memory.dmp

Filesize
32KB

Download