umbral | 05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880f

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
16-12-2024 13:45

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General

Target

05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe
Size

231KB
MD5

01270329ba245395e02d8c9aa0d9fdf0
SHA1

edd621594425fddf0d13547a2cb4da372cafc273
SHA256

05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880f
SHA512

820da28c393a16658f8cc0f6b023e5028d5bd95799d9a1b2cbda2e49367532133322c2b27daa19ef53c6fc3859fa168a98272e44e27a17be064d511db194e137
SSDEEP

6144:RloZM+rIkd8g+EtXHkv/iD4ZlSY1DA0r6SjVg8ZHjb8e1mrji:joZtL+EP8ZlSY1DA0r6SjVg8ZHt

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/2144-1-0x0000028259DE0000-0x0000028259E20000-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
3240	powershell.exe
4172	powershell.exe
2032	powershell.exe
4780	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.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
25	discord.com
26	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
2272	cmd.exe
3144	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2660	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3144	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe
4780	powershell.exe
4780	powershell.exe
3240	powershell.exe
3240	powershell.exe
4172	powershell.exe
4172	powershell.exe
1628	powershell.exe
1628	powershell.exe
2032	powershell.exe
2032	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe
Token: SeIncreaseQuotaPrivilege	2964	wmic.exe
Token: SeSecurityPrivilege	2964	wmic.exe
Token: SeTakeOwnershipPrivilege	2964	wmic.exe
Token: SeLoadDriverPrivilege	2964	wmic.exe
Token: SeSystemProfilePrivilege	2964	wmic.exe
Token: SeSystemtimePrivilege	2964	wmic.exe
Token: SeProfSingleProcessPrivilege	2964	wmic.exe
Token: SeIncBasePriorityPrivilege	2964	wmic.exe
Token: SeCreatePagefilePrivilege	2964	wmic.exe
Token: SeBackupPrivilege	2964	wmic.exe
Token: SeRestorePrivilege	2964	wmic.exe
Token: SeShutdownPrivilege	2964	wmic.exe
Token: SeDebugPrivilege	2964	wmic.exe
Token: SeSystemEnvironmentPrivilege	2964	wmic.exe
Token: SeRemoteShutdownPrivilege	2964	wmic.exe
Token: SeUndockPrivilege	2964	wmic.exe
Token: SeManageVolumePrivilege	2964	wmic.exe
Token: 33	2964	wmic.exe
Token: 34	2964	wmic.exe
Token: 35	2964	wmic.exe
Token: 36	2964	wmic.exe
Token: SeIncreaseQuotaPrivilege	2964	wmic.exe
Token: SeSecurityPrivilege	2964	wmic.exe
Token: SeTakeOwnershipPrivilege	2964	wmic.exe
Token: SeLoadDriverPrivilege	2964	wmic.exe
Token: SeSystemProfilePrivilege	2964	wmic.exe
Token: SeSystemtimePrivilege	2964	wmic.exe
Token: SeProfSingleProcessPrivilege	2964	wmic.exe
Token: SeIncBasePriorityPrivilege	2964	wmic.exe
Token: SeCreatePagefilePrivilege	2964	wmic.exe
Token: SeBackupPrivilege	2964	wmic.exe
Token: SeRestorePrivilege	2964	wmic.exe
Token: SeShutdownPrivilege	2964	wmic.exe
Token: SeDebugPrivilege	2964	wmic.exe
Token: SeSystemEnvironmentPrivilege	2964	wmic.exe
Token: SeRemoteShutdownPrivilege	2964	wmic.exe
Token: SeUndockPrivilege	2964	wmic.exe
Token: SeManageVolumePrivilege	2964	wmic.exe
Token: 33	2964	wmic.exe
Token: 34	2964	wmic.exe
Token: 35	2964	wmic.exe
Token: 36	2964	wmic.exe
Token: SeDebugPrivilege	4780	powershell.exe
Token: SeDebugPrivilege	3240	powershell.exe
Token: SeDebugPrivilege	4172	powershell.exe
Token: SeDebugPrivilege	1628	powershell.exe
Token: SeIncreaseQuotaPrivilege	1728	wmic.exe
Token: SeSecurityPrivilege	1728	wmic.exe
Token: SeTakeOwnershipPrivilege	1728	wmic.exe
Token: SeLoadDriverPrivilege	1728	wmic.exe
Token: SeSystemProfilePrivilege	1728	wmic.exe
Token: SeSystemtimePrivilege	1728	wmic.exe
Token: SeProfSingleProcessPrivilege	1728	wmic.exe
Token: SeIncBasePriorityPrivilege	1728	wmic.exe
Token: SeCreatePagefilePrivilege	1728	wmic.exe
Token: SeBackupPrivilege	1728	wmic.exe
Token: SeRestorePrivilege	1728	wmic.exe
Token: SeShutdownPrivilege	1728	wmic.exe
Token: SeDebugPrivilege	1728	wmic.exe
Token: SeSystemEnvironmentPrivilege	1728	wmic.exe
Token: SeRemoteShutdownPrivilege	1728	wmic.exe
Token: SeUndockPrivilege	1728	wmic.exe
Token: SeManageVolumePrivilege	1728	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 2964	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	85
PID 2144 wrote to memory of 2964	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	85
PID 2144 wrote to memory of 3144	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	88
PID 2144 wrote to memory of 3144	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	88
PID 2144 wrote to memory of 4780	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	90
PID 2144 wrote to memory of 4780	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	90
PID 2144 wrote to memory of 3240	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	92
PID 2144 wrote to memory of 3240	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	92
PID 2144 wrote to memory of 4172	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	94
PID 2144 wrote to memory of 4172	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	94
PID 2144 wrote to memory of 1628	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	96
PID 2144 wrote to memory of 1628	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	96
PID 2144 wrote to memory of 1728	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	98
PID 2144 wrote to memory of 1728	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	98
PID 2144 wrote to memory of 3172	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	100
PID 2144 wrote to memory of 3172	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	100
PID 2144 wrote to memory of 1108	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	102
PID 2144 wrote to memory of 1108	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	102
PID 2144 wrote to memory of 2032	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	104
PID 2144 wrote to memory of 2032	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	104
PID 2144 wrote to memory of 2660	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	106
PID 2144 wrote to memory of 2660	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	106
PID 2144 wrote to memory of 2272	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	113
PID 2144 wrote to memory of 2272	2144	05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe	113
PID 2272 wrote to memory of 3144	2272	cmd.exe	115
PID 2272 wrote to memory of 3144	2272	cmd.exe	115

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3144	attrib.exe

C:\Users\Admin\AppData\Local\Temp\05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe
"C:\Users\Admin\AppData\Local\Temp\05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2964
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe"
  2⤵
  - Views/modifies file attributes
  PID:3144
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4780
- 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:3240
- 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:4172
- 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:1628
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1728
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3172
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1108
- 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:2032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2660
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\05d89012ff0100526b06b84ea4ed992d8a3dc37198d2377eccc3e0a9d252880fN.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2272
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3144

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
47aec0ae6e0dfab5f91c35cd65d2c56a

SHA1
0bbe13618bdc0c402539cdfca81471aa501f5cad

SHA256
8f31385012b247db2cc50ecb164208fbbf5f8cdf7bfc951e8c2c8ad5fb04cf0b

SHA512
c4b7184a85c1d594012ba86390e651439d6cae63c76b94432faaaea410e4ef9bc62d88e68adf8f3abbe36e18ef9e4dc46c3e31a0d72089f98a22f04c8b4a8f12

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

Filesize
1KB

MD5
548dd08570d121a65e82abb7171cae1c

SHA1
1a1b5084b3a78f3acd0d811cc79dbcac121217ab

SHA256
cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc

SHA512
37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

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

Filesize
1KB

MD5
31e2ffacdd9e5a7b72cd7a07708b7281

SHA1
e5c6a70b3b06806d42348273b3b66ddb02bc3c55

SHA256
ce3a50fdd85af4f942b0ba2faae7fbd6598cd6c16628202a50bb50483efcbc8e

SHA512
759997d86d0f2a662a120fe5ed235f58546c137cdd21e73780fd1f8a290a7793897d21f1283f19203941eaccf3d210fa342bb14c8dee13049633ae94b231fcde

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_41uc2xkq.nni.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2144-72-0x000002825BA90000-0x000002825BA9A000-memory.dmp

Filesize
40KB

Download
memory/2144-35-0x000002825BAC0000-0x000002825BADE000-memory.dmp

Filesize
120KB

Download
memory/2144-95-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/2144-94-0x0000028274380000-0x0000028274482000-memory.dmp

Filesize
1.0MB

Download
memory/2144-2-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/2144-33-0x00000282742C0000-0x0000028274336000-memory.dmp

Filesize
472KB

Download
memory/2144-34-0x00000282746D0000-0x0000028274720000-memory.dmp

Filesize
320KB

Download
memory/2144-92-0x00007FFA07DA3000-0x00007FFA07DA5000-memory.dmp

Filesize
8KB

Download
memory/2144-1-0x0000028259DE0000-0x0000028259E20000-memory.dmp

Filesize
256KB

Download
memory/2144-0-0x00007FFA07DA3000-0x00007FFA07DA5000-memory.dmp

Filesize
8KB

Download
memory/2144-73-0x0000028274340000-0x0000028274352000-memory.dmp

Filesize
72KB

Download
memory/4780-14-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/4780-13-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/4780-15-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/4780-12-0x00000289F28B0000-0x00000289F28D2000-memory.dmp

Filesize
136KB

Download
memory/4780-18-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download