umbral | c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37d

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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
behavioral2/memory/3996-1-0x000001E570C70000-0x000001E570CB0000-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
740	powershell.exe
4436	powershell.exe
312	powershell.exe
3544	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.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
20	discord.com
21	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
5	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
1632	cmd.exe
4276	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2960	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4276	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe
740	powershell.exe
740	powershell.exe
4436	powershell.exe
4436	powershell.exe
312	powershell.exe
312	powershell.exe
4884	powershell.exe
4884	powershell.exe
3544	powershell.exe
3544	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe
Token: SeIncreaseQuotaPrivilege	1756	wmic.exe
Token: SeSecurityPrivilege	1756	wmic.exe
Token: SeTakeOwnershipPrivilege	1756	wmic.exe
Token: SeLoadDriverPrivilege	1756	wmic.exe
Token: SeSystemProfilePrivilege	1756	wmic.exe
Token: SeSystemtimePrivilege	1756	wmic.exe
Token: SeProfSingleProcessPrivilege	1756	wmic.exe
Token: SeIncBasePriorityPrivilege	1756	wmic.exe
Token: SeCreatePagefilePrivilege	1756	wmic.exe
Token: SeBackupPrivilege	1756	wmic.exe
Token: SeRestorePrivilege	1756	wmic.exe
Token: SeShutdownPrivilege	1756	wmic.exe
Token: SeDebugPrivilege	1756	wmic.exe
Token: SeSystemEnvironmentPrivilege	1756	wmic.exe
Token: SeRemoteShutdownPrivilege	1756	wmic.exe
Token: SeUndockPrivilege	1756	wmic.exe
Token: SeManageVolumePrivilege	1756	wmic.exe
Token: 33	1756	wmic.exe
Token: 34	1756	wmic.exe
Token: 35	1756	wmic.exe
Token: 36	1756	wmic.exe
Token: SeIncreaseQuotaPrivilege	1756	wmic.exe
Token: SeSecurityPrivilege	1756	wmic.exe
Token: SeTakeOwnershipPrivilege	1756	wmic.exe
Token: SeLoadDriverPrivilege	1756	wmic.exe
Token: SeSystemProfilePrivilege	1756	wmic.exe
Token: SeSystemtimePrivilege	1756	wmic.exe
Token: SeProfSingleProcessPrivilege	1756	wmic.exe
Token: SeIncBasePriorityPrivilege	1756	wmic.exe
Token: SeCreatePagefilePrivilege	1756	wmic.exe
Token: SeBackupPrivilege	1756	wmic.exe
Token: SeRestorePrivilege	1756	wmic.exe
Token: SeShutdownPrivilege	1756	wmic.exe
Token: SeDebugPrivilege	1756	wmic.exe
Token: SeSystemEnvironmentPrivilege	1756	wmic.exe
Token: SeRemoteShutdownPrivilege	1756	wmic.exe
Token: SeUndockPrivilege	1756	wmic.exe
Token: SeManageVolumePrivilege	1756	wmic.exe
Token: 33	1756	wmic.exe
Token: 34	1756	wmic.exe
Token: 35	1756	wmic.exe
Token: 36	1756	wmic.exe
Token: SeDebugPrivilege	740	powershell.exe
Token: SeDebugPrivilege	4436	powershell.exe
Token: SeDebugPrivilege	312	powershell.exe
Token: SeDebugPrivilege	4884	powershell.exe
Token: SeIncreaseQuotaPrivilege	2876	wmic.exe
Token: SeSecurityPrivilege	2876	wmic.exe
Token: SeTakeOwnershipPrivilege	2876	wmic.exe
Token: SeLoadDriverPrivilege	2876	wmic.exe
Token: SeSystemProfilePrivilege	2876	wmic.exe
Token: SeSystemtimePrivilege	2876	wmic.exe
Token: SeProfSingleProcessPrivilege	2876	wmic.exe
Token: SeIncBasePriorityPrivilege	2876	wmic.exe
Token: SeCreatePagefilePrivilege	2876	wmic.exe
Token: SeBackupPrivilege	2876	wmic.exe
Token: SeRestorePrivilege	2876	wmic.exe
Token: SeShutdownPrivilege	2876	wmic.exe
Token: SeDebugPrivilege	2876	wmic.exe
Token: SeSystemEnvironmentPrivilege	2876	wmic.exe
Token: SeRemoteShutdownPrivilege	2876	wmic.exe
Token: SeUndockPrivilege	2876	wmic.exe
Token: SeManageVolumePrivilege	2876	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 1756	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	82
PID 3996 wrote to memory of 1756	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	82
PID 3996 wrote to memory of 3108	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	85
PID 3996 wrote to memory of 3108	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	85
PID 3996 wrote to memory of 740	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	87
PID 3996 wrote to memory of 740	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	87
PID 3996 wrote to memory of 4436	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	89
PID 3996 wrote to memory of 4436	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	89
PID 3996 wrote to memory of 312	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	91
PID 3996 wrote to memory of 312	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	91
PID 3996 wrote to memory of 4884	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	93
PID 3996 wrote to memory of 4884	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	93
PID 3996 wrote to memory of 2876	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	95
PID 3996 wrote to memory of 2876	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	95
PID 3996 wrote to memory of 4496	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	97
PID 3996 wrote to memory of 4496	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	97
PID 3996 wrote to memory of 5044	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	99
PID 3996 wrote to memory of 5044	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	99
PID 3996 wrote to memory of 3544	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	101
PID 3996 wrote to memory of 3544	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	101
PID 3996 wrote to memory of 2960	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	103
PID 3996 wrote to memory of 2960	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	103
PID 3996 wrote to memory of 1632	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	105
PID 3996 wrote to memory of 1632	3996	c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe	105
PID 1632 wrote to memory of 4276	1632	cmd.exe	107
PID 1632 wrote to memory of 4276	1632	cmd.exe	107

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3108	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:3996
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1756
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe"
  2⤵
  - Views/modifies file attributes
  PID:3108
- 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:740
- 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:4436
- 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:312
- 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:4884
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2876
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4496
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:5044
- 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:3544
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2960
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\c4d045d0748ee08c602a1fc3a46b1498ce7297c18f12f9db44ea2b2dbfb4e37dN.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1632
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4276

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

Replay Monitor

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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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
2af06a6b36db9473e4a7d9c7ab72b70b

SHA1
8ef34b9b961e51bdd1b8d7d9db2ec1b0a4764645

SHA256
18a2aa7e245c6732f95fb7749b2b4d29007f2c56a9c5bfbc5e3c127bdfe5f158

SHA512
3495567a5d5af94ae27be51313d9e2630c52017d808042fe0d56baa34fa1d246eb15c253d14c77c77a1d8f2f1c81680e623044ae95415b095696e7fa141ac7cf

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
288f76eb6350b99897bf8a40a26d7b88

SHA1
7f386d05202de2cf090bbda84d633a640730e090

SHA256
1b9a2714ecfaf4b2e7d7961d5f2537ea360ad0df46a0fa789255235b077075d1

SHA512
ffafc9d47140408afba98a9832433c0829ba696524c56d03f4ce67ae84d369c658d3a0b3cbfc62f8e5d83fc91f8f73fc1dd9a27f0deaefd1d07485a63face869

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dqqtxbjg.ueb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/740-4-0x00007FFCED2A0000-0x00007FFCEDD61000-memory.dmp

Filesize
10.8MB

Download
memory/740-15-0x00000242770C0000-0x00000242770E2000-memory.dmp

Filesize
136KB

Download
memory/740-10-0x00007FFCED2A0000-0x00007FFCEDD61000-memory.dmp

Filesize
10.8MB

Download
memory/740-18-0x00007FFCED2A0000-0x00007FFCEDD61000-memory.dmp

Filesize
10.8MB

Download
memory/740-3-0x00007FFCED2A0000-0x00007FFCEDD61000-memory.dmp

Filesize
10.8MB

Download
memory/3996-34-0x000001E573350000-0x000001E5733A0000-memory.dmp

Filesize
320KB

Download
memory/3996-33-0x000001E5733A0000-0x000001E573416000-memory.dmp

Filesize
472KB

Download
memory/3996-35-0x000001E573440000-0x000001E57345E000-memory.dmp

Filesize
120KB

Download
memory/3996-1-0x000001E570C70000-0x000001E570CB0000-memory.dmp

Filesize
256KB

Download
memory/3996-0-0x00007FFCED2A3000-0x00007FFCED2A5000-memory.dmp

Filesize
8KB

Download
memory/3996-72-0x000001E573470000-0x000001E57347A000-memory.dmp

Filesize
40KB

Download
memory/3996-73-0x000001E574290000-0x000001E5742A2000-memory.dmp

Filesize
72KB

Download
memory/3996-2-0x00007FFCED2A0000-0x00007FFCEDD61000-memory.dmp

Filesize
10.8MB

Download
memory/3996-93-0x00007FFCED2A0000-0x00007FFCEDD61000-memory.dmp

Filesize
10.8MB

Download