umbral | e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
01/12/2024, 02:04

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General

Target

e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe
Size

229KB
MD5

1e10af7811808fc24065f18535cf1220
SHA1

65995bcb862aa66988e1bb0dbff75dcac9b400c7
SHA256

e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed
SHA512

f1c623918a3701254805e7648d671b316446a0f98637d3de62d44331cf91502afb57ccb762472491bc4ac037fbf5f7b624eb9d39092b3be0b2ed84da6f3acadc
SSDEEP

6144:lloZMQfsXtioRkts/cnnK6cMldKRn/1+mpnsl3ySXCkb8e1muhi:noZItlRk83MldKRn/1+mpnsl3ySXze

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2004-1-0x0000000001140000-0x0000000001180000-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
2968	powershell.exe
2216	powershell.exe
2780	powershell.exe
2900	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe

Deletes itself 1 IoCs

pid	Process
2140	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

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
2140	cmd.exe
2356	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2392	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2356	PING.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2968	powershell.exe
2216	powershell.exe
2780	powershell.exe
1700	powershell.exe
2900	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe
Token: SeDebugPrivilege	2968	powershell.exe
Token: SeDebugPrivilege	2216	powershell.exe
Token: SeDebugPrivilege	2780	powershell.exe
Token: SeDebugPrivilege	1700	powershell.exe
Token: SeIncreaseQuotaPrivilege	1988	wmic.exe
Token: SeSecurityPrivilege	1988	wmic.exe
Token: SeTakeOwnershipPrivilege	1988	wmic.exe
Token: SeLoadDriverPrivilege	1988	wmic.exe
Token: SeSystemProfilePrivilege	1988	wmic.exe
Token: SeSystemtimePrivilege	1988	wmic.exe
Token: SeProfSingleProcessPrivilege	1988	wmic.exe
Token: SeIncBasePriorityPrivilege	1988	wmic.exe
Token: SeCreatePagefilePrivilege	1988	wmic.exe
Token: SeBackupPrivilege	1988	wmic.exe
Token: SeRestorePrivilege	1988	wmic.exe
Token: SeShutdownPrivilege	1988	wmic.exe
Token: SeDebugPrivilege	1988	wmic.exe
Token: SeSystemEnvironmentPrivilege	1988	wmic.exe
Token: SeRemoteShutdownPrivilege	1988	wmic.exe
Token: SeUndockPrivilege	1988	wmic.exe
Token: SeManageVolumePrivilege	1988	wmic.exe
Token: 33	1988	wmic.exe
Token: 34	1988	wmic.exe
Token: 35	1988	wmic.exe
Token: SeIncreaseQuotaPrivilege	1988	wmic.exe
Token: SeSecurityPrivilege	1988	wmic.exe
Token: SeTakeOwnershipPrivilege	1988	wmic.exe
Token: SeLoadDriverPrivilege	1988	wmic.exe
Token: SeSystemProfilePrivilege	1988	wmic.exe
Token: SeSystemtimePrivilege	1988	wmic.exe
Token: SeProfSingleProcessPrivilege	1988	wmic.exe
Token: SeIncBasePriorityPrivilege	1988	wmic.exe
Token: SeCreatePagefilePrivilege	1988	wmic.exe
Token: SeBackupPrivilege	1988	wmic.exe
Token: SeRestorePrivilege	1988	wmic.exe
Token: SeShutdownPrivilege	1988	wmic.exe
Token: SeDebugPrivilege	1988	wmic.exe
Token: SeSystemEnvironmentPrivilege	1988	wmic.exe
Token: SeRemoteShutdownPrivilege	1988	wmic.exe
Token: SeUndockPrivilege	1988	wmic.exe
Token: SeManageVolumePrivilege	1988	wmic.exe
Token: 33	1988	wmic.exe
Token: 34	1988	wmic.exe
Token: 35	1988	wmic.exe
Token: SeIncreaseQuotaPrivilege	3056	wmic.exe
Token: SeSecurityPrivilege	3056	wmic.exe
Token: SeTakeOwnershipPrivilege	3056	wmic.exe
Token: SeLoadDriverPrivilege	3056	wmic.exe
Token: SeSystemProfilePrivilege	3056	wmic.exe
Token: SeSystemtimePrivilege	3056	wmic.exe
Token: SeProfSingleProcessPrivilege	3056	wmic.exe
Token: SeIncBasePriorityPrivilege	3056	wmic.exe
Token: SeCreatePagefilePrivilege	3056	wmic.exe
Token: SeBackupPrivilege	3056	wmic.exe
Token: SeRestorePrivilege	3056	wmic.exe
Token: SeShutdownPrivilege	3056	wmic.exe
Token: SeDebugPrivilege	3056	wmic.exe
Token: SeSystemEnvironmentPrivilege	3056	wmic.exe
Token: SeRemoteShutdownPrivilege	3056	wmic.exe
Token: SeUndockPrivilege	3056	wmic.exe
Token: SeManageVolumePrivilege	3056	wmic.exe
Token: 33	3056	wmic.exe
Token: 34	3056	wmic.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2852	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	30
PID 2004 wrote to memory of 2852	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	30
PID 2004 wrote to memory of 2852	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	30
PID 2004 wrote to memory of 2968	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	32
PID 2004 wrote to memory of 2968	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	32
PID 2004 wrote to memory of 2968	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	32
PID 2004 wrote to memory of 2216	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	34
PID 2004 wrote to memory of 2216	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	34
PID 2004 wrote to memory of 2216	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	34
PID 2004 wrote to memory of 2780	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	36
PID 2004 wrote to memory of 2780	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	36
PID 2004 wrote to memory of 2780	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	36
PID 2004 wrote to memory of 1700	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	38
PID 2004 wrote to memory of 1700	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	38
PID 2004 wrote to memory of 1700	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	38
PID 2004 wrote to memory of 1988	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	40
PID 2004 wrote to memory of 1988	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	40
PID 2004 wrote to memory of 1988	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	40
PID 2004 wrote to memory of 3056	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	43
PID 2004 wrote to memory of 3056	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	43
PID 2004 wrote to memory of 3056	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	43
PID 2004 wrote to memory of 2260	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	45
PID 2004 wrote to memory of 2260	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	45
PID 2004 wrote to memory of 2260	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	45
PID 2004 wrote to memory of 2900	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	47
PID 2004 wrote to memory of 2900	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	47
PID 2004 wrote to memory of 2900	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	47
PID 2004 wrote to memory of 2392	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	49
PID 2004 wrote to memory of 2392	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	49
PID 2004 wrote to memory of 2392	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	49
PID 2004 wrote to memory of 2140	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	51
PID 2004 wrote to memory of 2140	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	51
PID 2004 wrote to memory of 2140	2004	e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe	51
PID 2140 wrote to memory of 2356	2140	cmd.exe	53
PID 2140 wrote to memory of 2356	2140	cmd.exe	53
PID 2140 wrote to memory of 2356	2140	cmd.exe	53

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2852	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe
"C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe"
  2⤵
  - Views/modifies file attributes
  PID:2852
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2968
- 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:2216
- 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:2780
- 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:1700
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1988
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3056
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2260
- 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:2900
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2392
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eedN.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2140
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2356

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
94d1dad6f415dd713c5eb4304968c7ea

SHA1
ef3254bd56d3fd9d7c23cc98277317a4a12391e2

SHA256
2dea8d574d22fadc618500151328c3f1120ca559b0e38f385f26ee8f278bfb41

SHA512
54e890380c092cd6cf1bef6f0bc43538b46c63be474941673c043e7f42b6f6d25476d7b14f68f39c8cccb07e9e1d2e5c539f1bf08c49d9a2f31012b16faf3567

Download Submit
memory/2004-1-0x0000000001140000-0x0000000001180000-memory.dmp

Filesize
256KB

Download
memory/2004-2-0x000007FEF57C0000-0x000007FEF61AC000-memory.dmp

Filesize
9.9MB

Download
memory/2004-55-0x000007FEF57C0000-0x000007FEF61AC000-memory.dmp

Filesize
9.9MB

Download
memory/2004-0-0x000007FEF57C3000-0x000007FEF57C4000-memory.dmp

Filesize
4KB

Download
memory/2004-45-0x000007FEF57C0000-0x000007FEF61AC000-memory.dmp

Filesize
9.9MB

Download
memory/2004-44-0x000007FEF57C3000-0x000007FEF57C4000-memory.dmp

Filesize
4KB

Download
memory/2216-22-0x0000000002260000-0x0000000002268000-memory.dmp

Filesize
32KB

Download
memory/2216-21-0x000000001B540000-0x000000001B822000-memory.dmp

Filesize
2.9MB

Download
memory/2900-51-0x0000000001E70000-0x0000000001E78000-memory.dmp

Filesize
32KB

Download
memory/2968-8-0x000000001B710000-0x000000001B9F2000-memory.dmp

Filesize
2.9MB

Download
memory/2968-15-0x000007FEED500000-0x000007FEEDE9D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-12-0x000007FEED500000-0x000007FEEDE9D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-14-0x000007FEED500000-0x000007FEEDE9D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-13-0x000007FEED500000-0x000007FEEDE9D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-11-0x000007FEED500000-0x000007FEEDE9D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-10-0x000007FEED500000-0x000007FEEDE9D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-9-0x00000000022C0000-0x00000000022C8000-memory.dmp

Filesize
32KB

Download
memory/2968-7-0x000007FEED7BE000-0x000007FEED7BF000-memory.dmp

Filesize
4KB

Download