umbral | 6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53

Analysis

max time kernel
94s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-01-2025 06:08

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General

Target

6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe
Size

257KB
MD5

c30f9465054f33e6dea1a2ba5cb206e7
SHA1

6c2609663a7aa38f738b0104785ab1ba469af013
SHA256

6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53
SHA512

181eee666cc26508697e50843ccf55e3c46dad0598b1f493d44f1c6dde8ca84df1d77eaecea0f289386a570d49e9aa2c6daa4b3f617659b092912a22adb6dc0d
SSDEEP

6144:floZM+rIkd8g+EtXHkv/iD4u76SecjfUx1gevPehab8e1mZRXLijK7so:doZtL+EP8u76SecjfUx1gevPeIqRWjKL

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3396-1-0x000001B89EC60000-0x000001B89ECA6000-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
4912	powershell.exe
1852	powershell.exe
2332	powershell.exe
2764	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.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
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
2204	cmd.exe
4892	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1020	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4892	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe
4912	powershell.exe
4912	powershell.exe
2332	powershell.exe
2332	powershell.exe
2764	powershell.exe
2764	powershell.exe
3252	powershell.exe
3252	powershell.exe
1852	powershell.exe
1852	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe
Token: SeIncreaseQuotaPrivilege	1760	wmic.exe
Token: SeSecurityPrivilege	1760	wmic.exe
Token: SeTakeOwnershipPrivilege	1760	wmic.exe
Token: SeLoadDriverPrivilege	1760	wmic.exe
Token: SeSystemProfilePrivilege	1760	wmic.exe
Token: SeSystemtimePrivilege	1760	wmic.exe
Token: SeProfSingleProcessPrivilege	1760	wmic.exe
Token: SeIncBasePriorityPrivilege	1760	wmic.exe
Token: SeCreatePagefilePrivilege	1760	wmic.exe
Token: SeBackupPrivilege	1760	wmic.exe
Token: SeRestorePrivilege	1760	wmic.exe
Token: SeShutdownPrivilege	1760	wmic.exe
Token: SeDebugPrivilege	1760	wmic.exe
Token: SeSystemEnvironmentPrivilege	1760	wmic.exe
Token: SeRemoteShutdownPrivilege	1760	wmic.exe
Token: SeUndockPrivilege	1760	wmic.exe
Token: SeManageVolumePrivilege	1760	wmic.exe
Token: 33	1760	wmic.exe
Token: 34	1760	wmic.exe
Token: 35	1760	wmic.exe
Token: 36	1760	wmic.exe
Token: SeIncreaseQuotaPrivilege	1760	wmic.exe
Token: SeSecurityPrivilege	1760	wmic.exe
Token: SeTakeOwnershipPrivilege	1760	wmic.exe
Token: SeLoadDriverPrivilege	1760	wmic.exe
Token: SeSystemProfilePrivilege	1760	wmic.exe
Token: SeSystemtimePrivilege	1760	wmic.exe
Token: SeProfSingleProcessPrivilege	1760	wmic.exe
Token: SeIncBasePriorityPrivilege	1760	wmic.exe
Token: SeCreatePagefilePrivilege	1760	wmic.exe
Token: SeBackupPrivilege	1760	wmic.exe
Token: SeRestorePrivilege	1760	wmic.exe
Token: SeShutdownPrivilege	1760	wmic.exe
Token: SeDebugPrivilege	1760	wmic.exe
Token: SeSystemEnvironmentPrivilege	1760	wmic.exe
Token: SeRemoteShutdownPrivilege	1760	wmic.exe
Token: SeUndockPrivilege	1760	wmic.exe
Token: SeManageVolumePrivilege	1760	wmic.exe
Token: 33	1760	wmic.exe
Token: 34	1760	wmic.exe
Token: 35	1760	wmic.exe
Token: 36	1760	wmic.exe
Token: SeDebugPrivilege	4912	powershell.exe
Token: SeDebugPrivilege	2332	powershell.exe
Token: SeDebugPrivilege	2764	powershell.exe
Token: SeDebugPrivilege	3252	powershell.exe
Token: SeIncreaseQuotaPrivilege	4484	wmic.exe
Token: SeSecurityPrivilege	4484	wmic.exe
Token: SeTakeOwnershipPrivilege	4484	wmic.exe
Token: SeLoadDriverPrivilege	4484	wmic.exe
Token: SeSystemProfilePrivilege	4484	wmic.exe
Token: SeSystemtimePrivilege	4484	wmic.exe
Token: SeProfSingleProcessPrivilege	4484	wmic.exe
Token: SeIncBasePriorityPrivilege	4484	wmic.exe
Token: SeCreatePagefilePrivilege	4484	wmic.exe
Token: SeBackupPrivilege	4484	wmic.exe
Token: SeRestorePrivilege	4484	wmic.exe
Token: SeShutdownPrivilege	4484	wmic.exe
Token: SeDebugPrivilege	4484	wmic.exe
Token: SeSystemEnvironmentPrivilege	4484	wmic.exe
Token: SeRemoteShutdownPrivilege	4484	wmic.exe
Token: SeUndockPrivilege	4484	wmic.exe
Token: SeManageVolumePrivilege	4484	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 1760	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	83
PID 3396 wrote to memory of 1760	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	83
PID 3396 wrote to memory of 2868	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	86
PID 3396 wrote to memory of 2868	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	86
PID 3396 wrote to memory of 4912	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	88
PID 3396 wrote to memory of 4912	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	88
PID 3396 wrote to memory of 2332	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	90
PID 3396 wrote to memory of 2332	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	90
PID 3396 wrote to memory of 2764	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	92
PID 3396 wrote to memory of 2764	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	92
PID 3396 wrote to memory of 3252	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	94
PID 3396 wrote to memory of 3252	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	94
PID 3396 wrote to memory of 4484	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	97
PID 3396 wrote to memory of 4484	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	97
PID 3396 wrote to memory of 4496	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	99
PID 3396 wrote to memory of 4496	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	99
PID 3396 wrote to memory of 4276	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	101
PID 3396 wrote to memory of 4276	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	101
PID 3396 wrote to memory of 1852	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	103
PID 3396 wrote to memory of 1852	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	103
PID 3396 wrote to memory of 1020	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	105
PID 3396 wrote to memory of 1020	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	105
PID 3396 wrote to memory of 2204	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	107
PID 3396 wrote to memory of 2204	3396	6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe	107
PID 2204 wrote to memory of 4892	2204	cmd.exe	109
PID 2204 wrote to memory of 4892	2204	cmd.exe	109

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\6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe
"C:\Users\Admin\AppData\Local\Temp\6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1760
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.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\6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4912
- 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:2332
- 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:2764
- 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:3252
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4484
- 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:4276
- 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:1852
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1020
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\6a856e121efd06bea72dbf93e24570e3c08e9859795e8234492254559f9aff53.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4892

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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
9390b66cebc6c006ad29783078ac920b

SHA1
a61c048a788c8821ac024811fa693d2259499cf5

SHA256
a749a95d2101f05dfc26c1045f2d7324e1a8f30c7a1e13eed18ab5f9c2b73d3e

SHA512
65c2658215753f5d6de2affbb93ab15a62d6d9106b79e4c049cdeb885d52332825aa2d62eeb4f0b312eee3a4f01ede6f9e2caa10e12b269fe81178d878cc4cf4

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
7511c81925750deb7ad1b9b80eea8a8d

SHA1
6ea759b3cbd243ae11435c6d6c5ced185eb01f49

SHA256
5b49723a7773f2fe1f6093236e7b9b2c546f0873635d02346cb39535811234fa

SHA512
5f7e69316d39525d137a7a833f8c746ceef8f1b2295348393fb3244cca8b962fbaad0f7da49da453fe97e2c49b1f41f06138111ac5ff97fdc33c300350ec3a1b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5r5kpbfy.ouj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3396-72-0x000001B8B9190000-0x000001B8B919A000-memory.dmp

Filesize
40KB

Download
memory/3396-35-0x000001B8B94E0000-0x000001B8B94FE000-memory.dmp

Filesize
120KB

Download
memory/3396-93-0x00007FFC5D9F0000-0x00007FFC5E4B1000-memory.dmp

Filesize
10.8MB

Download
memory/3396-73-0x000001B8B94A0000-0x000001B8B94B2000-memory.dmp

Filesize
72KB

Download
memory/3396-2-0x00007FFC5D9F0000-0x00007FFC5E4B1000-memory.dmp

Filesize
10.8MB

Download
memory/3396-33-0x000001B8B9400000-0x000001B8B9476000-memory.dmp

Filesize
472KB

Download
memory/3396-34-0x000001B8B9140000-0x000001B8B9190000-memory.dmp

Filesize
320KB

Download
memory/3396-0-0x00007FFC5D9F3000-0x00007FFC5D9F5000-memory.dmp

Filesize
8KB

Download
memory/3396-1-0x000001B89EC60000-0x000001B89ECA6000-memory.dmp

Filesize
280KB

Download
memory/4912-15-0x00007FFC5D9F0000-0x00007FFC5E4B1000-memory.dmp

Filesize
10.8MB

Download
memory/4912-10-0x000001D7BA720000-0x000001D7BA742000-memory.dmp

Filesize
136KB

Download
memory/4912-3-0x00007FFC5D9F0000-0x00007FFC5E4B1000-memory.dmp

Filesize
10.8MB

Download
memory/4912-14-0x00007FFC5D9F0000-0x00007FFC5E4B1000-memory.dmp

Filesize
10.8MB

Download
memory/4912-18-0x00007FFC5D9F0000-0x00007FFC5E4B1000-memory.dmp

Filesize
10.8MB

Download