umbral | 8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067de

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-01-2025 18:59

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General

Target

8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
Size

231KB
MD5

f70b5e56a09af292d4e909c547f9c8c0
SHA1

577883bdbe8dc9582e15e7a1212b1fe432bafce3
SHA256

8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067de
SHA512

e54ccb56aa6473abd3530493933d5164f2dff02076e0f03443382f02d177a52e318d8d0f432e6a3fb5620eaffd09f2dbf6ccbf9698ba149b149c594fa162d879
SSDEEP

6144:xloZM+rIkd8g+EtXHkv/iD4+Ocip3cw/oeHp0AVO0b8e1mMi:DoZtL+EP8+Ocip3cw/oeHp0AVji

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/5032-1-0x0000013B533D0000-0x0000013B53410000-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
644	powershell.exe
4144	powershell.exe
4080	powershell.exe
380	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.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
21	discord.com
22	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
848	cmd.exe
3732	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1468	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3732	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
644	powershell.exe
644	powershell.exe
4144	powershell.exe
4144	powershell.exe
4080	powershell.exe
4080	powershell.exe
1816	powershell.exe
1816	powershell.exe
380	powershell.exe
380	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
Token: SeIncreaseQuotaPrivilege	4988	wmic.exe
Token: SeSecurityPrivilege	4988	wmic.exe
Token: SeTakeOwnershipPrivilege	4988	wmic.exe
Token: SeLoadDriverPrivilege	4988	wmic.exe
Token: SeSystemProfilePrivilege	4988	wmic.exe
Token: SeSystemtimePrivilege	4988	wmic.exe
Token: SeProfSingleProcessPrivilege	4988	wmic.exe
Token: SeIncBasePriorityPrivilege	4988	wmic.exe
Token: SeCreatePagefilePrivilege	4988	wmic.exe
Token: SeBackupPrivilege	4988	wmic.exe
Token: SeRestorePrivilege	4988	wmic.exe
Token: SeShutdownPrivilege	4988	wmic.exe
Token: SeDebugPrivilege	4988	wmic.exe
Token: SeSystemEnvironmentPrivilege	4988	wmic.exe
Token: SeRemoteShutdownPrivilege	4988	wmic.exe
Token: SeUndockPrivilege	4988	wmic.exe
Token: SeManageVolumePrivilege	4988	wmic.exe
Token: 33	4988	wmic.exe
Token: 34	4988	wmic.exe
Token: 35	4988	wmic.exe
Token: 36	4988	wmic.exe
Token: SeIncreaseQuotaPrivilege	4988	wmic.exe
Token: SeSecurityPrivilege	4988	wmic.exe
Token: SeTakeOwnershipPrivilege	4988	wmic.exe
Token: SeLoadDriverPrivilege	4988	wmic.exe
Token: SeSystemProfilePrivilege	4988	wmic.exe
Token: SeSystemtimePrivilege	4988	wmic.exe
Token: SeProfSingleProcessPrivilege	4988	wmic.exe
Token: SeIncBasePriorityPrivilege	4988	wmic.exe
Token: SeCreatePagefilePrivilege	4988	wmic.exe
Token: SeBackupPrivilege	4988	wmic.exe
Token: SeRestorePrivilege	4988	wmic.exe
Token: SeShutdownPrivilege	4988	wmic.exe
Token: SeDebugPrivilege	4988	wmic.exe
Token: SeSystemEnvironmentPrivilege	4988	wmic.exe
Token: SeRemoteShutdownPrivilege	4988	wmic.exe
Token: SeUndockPrivilege	4988	wmic.exe
Token: SeManageVolumePrivilege	4988	wmic.exe
Token: 33	4988	wmic.exe
Token: 34	4988	wmic.exe
Token: 35	4988	wmic.exe
Token: 36	4988	wmic.exe
Token: SeDebugPrivilege	644	powershell.exe
Token: SeDebugPrivilege	4144	powershell.exe
Token: SeDebugPrivilege	4080	powershell.exe
Token: SeDebugPrivilege	1816	powershell.exe
Token: SeIncreaseQuotaPrivilege	1944	wmic.exe
Token: SeSecurityPrivilege	1944	wmic.exe
Token: SeTakeOwnershipPrivilege	1944	wmic.exe
Token: SeLoadDriverPrivilege	1944	wmic.exe
Token: SeSystemProfilePrivilege	1944	wmic.exe
Token: SeSystemtimePrivilege	1944	wmic.exe
Token: SeProfSingleProcessPrivilege	1944	wmic.exe
Token: SeIncBasePriorityPrivilege	1944	wmic.exe
Token: SeCreatePagefilePrivilege	1944	wmic.exe
Token: SeBackupPrivilege	1944	wmic.exe
Token: SeRestorePrivilege	1944	wmic.exe
Token: SeShutdownPrivilege	1944	wmic.exe
Token: SeDebugPrivilege	1944	wmic.exe
Token: SeSystemEnvironmentPrivilege	1944	wmic.exe
Token: SeRemoteShutdownPrivilege	1944	wmic.exe
Token: SeUndockPrivilege	1944	wmic.exe
Token: SeManageVolumePrivilege	1944	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 4988	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	82
PID 5032 wrote to memory of 4988	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	82
PID 5032 wrote to memory of 876	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	85
PID 5032 wrote to memory of 876	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	85
PID 5032 wrote to memory of 644	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	87
PID 5032 wrote to memory of 644	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	87
PID 5032 wrote to memory of 4144	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	89
PID 5032 wrote to memory of 4144	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	89
PID 5032 wrote to memory of 4080	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	91
PID 5032 wrote to memory of 4080	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	91
PID 5032 wrote to memory of 1816	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	93
PID 5032 wrote to memory of 1816	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	93
PID 5032 wrote to memory of 1944	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	95
PID 5032 wrote to memory of 1944	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	95
PID 5032 wrote to memory of 3356	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	97
PID 5032 wrote to memory of 3356	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	97
PID 5032 wrote to memory of 3516	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	99
PID 5032 wrote to memory of 3516	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	99
PID 5032 wrote to memory of 380	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	101
PID 5032 wrote to memory of 380	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	101
PID 5032 wrote to memory of 1468	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	103
PID 5032 wrote to memory of 1468	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	103
PID 5032 wrote to memory of 848	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	105
PID 5032 wrote to memory of 848	5032	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	105
PID 848 wrote to memory of 3732	848	cmd.exe	107
PID 848 wrote to memory of 3732	848	cmd.exe	107

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
876	attrib.exe

C:\Users\Admin\AppData\Local\Temp\8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
"C:\Users\Admin\AppData\Local\Temp\8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4988
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe"
  2⤵
  - Views/modifies file attributes
  PID:876
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:644
- 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:4144
- 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:4080
- 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:1816
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1944
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3356
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3516
- 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:380
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1468
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:848
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3732

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
966914e2e771de7a4a57a95b6ecfa8a9

SHA1
7a32282fd51dd032967ed4d9a40cc57e265aeff2

SHA256
98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

SHA512
dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

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

Filesize
1KB

MD5
88be3bc8a7f90e3953298c0fdbec4d72

SHA1
f4969784ad421cc80ef45608727aacd0f6bf2e4b

SHA256
533c8470b41084e40c5660569ebbdb7496520d449629a235e8053e84025f348a

SHA512
4fce64e2dacddbc03314048fef1ce356ee2647c14733da121c23c65507eeb8d721d6b690ad5463319b364dc4fa95904ad6ab096907f32918e3406ef438a6ef7c

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_3oe4rkr2.i4a.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/644-13-0x00007FFA7C2A0000-0x00007FFA7CD61000-memory.dmp

Filesize
10.8MB

Download
memory/644-14-0x00007FFA7C2A0000-0x00007FFA7CD61000-memory.dmp

Filesize
10.8MB

Download
memory/644-15-0x00007FFA7C2A0000-0x00007FFA7CD61000-memory.dmp

Filesize
10.8MB

Download
memory/644-18-0x00007FFA7C2A0000-0x00007FFA7CD61000-memory.dmp

Filesize
10.8MB

Download
memory/644-12-0x000002507BAF0000-0x000002507BB12000-memory.dmp

Filesize
136KB

Download
memory/5032-34-0x0000013B551C0000-0x0000013B55210000-memory.dmp

Filesize
320KB

Download
memory/5032-33-0x0000013B6DB70000-0x0000013B6DBE6000-memory.dmp

Filesize
472KB

Download
memory/5032-35-0x0000013B55170000-0x0000013B5518E000-memory.dmp

Filesize
120KB

Download
memory/5032-1-0x0000013B533D0000-0x0000013B53410000-memory.dmp

Filesize
256KB

Download
memory/5032-0-0x00007FFA7C2A3000-0x00007FFA7C2A5000-memory.dmp

Filesize
8KB

Download
memory/5032-73-0x0000013B55230000-0x0000013B55242000-memory.dmp

Filesize
72KB

Download
memory/5032-72-0x0000013B551B0000-0x0000013B551BA000-memory.dmp

Filesize
40KB

Download
memory/5032-2-0x00007FFA7C2A0000-0x00007FFA7CD61000-memory.dmp

Filesize
10.8MB

Download
memory/5032-93-0x00007FFA7C2A0000-0x00007FFA7CD61000-memory.dmp

Filesize
10.8MB

Download