umbral | f0bfbd7e921feaaf6d0b701cf58fa72e665fb20cc945bdb5ebf22c4c436eb6a7

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 12:09

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

SolaraBootstrapper.V210.exe
Size

231KB
MD5

a3b5e75b75b23ccdc2d0ad1f6cdce98c
SHA1

a78fa26acdfb97af1ff1ba42d5467f9c90162b4a
SHA256

f0bfbd7e921feaaf6d0b701cf58fa72e665fb20cc945bdb5ebf22c4c436eb6a7
SHA512

5e51aa1e84378573cda2920d17e5c0737c5c432a074324dffa2b0313794519c10b66e27c99f8d59c261b8c0b6481e3135c524c3ef6b8a8331898a0840689d9a3
SSDEEP

6144:BloZM+rIkd8g+EtXHkv/iD4WAaJdLocD9abtIExcqb8e1m85i:zoZtL+EP8WAaJdLocD9abtIExHe

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2504-1-0x0000000001210000-0x0000000001250000-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
2804	powershell.exe
2888	powershell.exe
1344	powershell.exe
2320	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	SolaraBootstrapper.V210.exe

Deletes itself 1 IoCs

pid	Process
532	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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
9	discord.com
10	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
532	cmd.exe
2408	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2680	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2408	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2504	SolaraBootstrapper.V210.exe
2320	powershell.exe
2804	powershell.exe
2888	powershell.exe
2396	powershell.exe
1344	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2504	SolaraBootstrapper.V210.exe
Token: SeIncreaseQuotaPrivilege	2084	wmic.exe
Token: SeSecurityPrivilege	2084	wmic.exe
Token: SeTakeOwnershipPrivilege	2084	wmic.exe
Token: SeLoadDriverPrivilege	2084	wmic.exe
Token: SeSystemProfilePrivilege	2084	wmic.exe
Token: SeSystemtimePrivilege	2084	wmic.exe
Token: SeProfSingleProcessPrivilege	2084	wmic.exe
Token: SeIncBasePriorityPrivilege	2084	wmic.exe
Token: SeCreatePagefilePrivilege	2084	wmic.exe
Token: SeBackupPrivilege	2084	wmic.exe
Token: SeRestorePrivilege	2084	wmic.exe
Token: SeShutdownPrivilege	2084	wmic.exe
Token: SeDebugPrivilege	2084	wmic.exe
Token: SeSystemEnvironmentPrivilege	2084	wmic.exe
Token: SeRemoteShutdownPrivilege	2084	wmic.exe
Token: SeUndockPrivilege	2084	wmic.exe
Token: SeManageVolumePrivilege	2084	wmic.exe
Token: 33	2084	wmic.exe
Token: 34	2084	wmic.exe
Token: 35	2084	wmic.exe
Token: SeIncreaseQuotaPrivilege	2084	wmic.exe
Token: SeSecurityPrivilege	2084	wmic.exe
Token: SeTakeOwnershipPrivilege	2084	wmic.exe
Token: SeLoadDriverPrivilege	2084	wmic.exe
Token: SeSystemProfilePrivilege	2084	wmic.exe
Token: SeSystemtimePrivilege	2084	wmic.exe
Token: SeProfSingleProcessPrivilege	2084	wmic.exe
Token: SeIncBasePriorityPrivilege	2084	wmic.exe
Token: SeCreatePagefilePrivilege	2084	wmic.exe
Token: SeBackupPrivilege	2084	wmic.exe
Token: SeRestorePrivilege	2084	wmic.exe
Token: SeShutdownPrivilege	2084	wmic.exe
Token: SeDebugPrivilege	2084	wmic.exe
Token: SeSystemEnvironmentPrivilege	2084	wmic.exe
Token: SeRemoteShutdownPrivilege	2084	wmic.exe
Token: SeUndockPrivilege	2084	wmic.exe
Token: SeManageVolumePrivilege	2084	wmic.exe
Token: 33	2084	wmic.exe
Token: 34	2084	wmic.exe
Token: 35	2084	wmic.exe
Token: SeDebugPrivilege	2320	powershell.exe
Token: SeDebugPrivilege	2804	powershell.exe
Token: SeDebugPrivilege	2888	powershell.exe
Token: SeDebugPrivilege	2396	powershell.exe
Token: SeIncreaseQuotaPrivilege	2424	wmic.exe
Token: SeSecurityPrivilege	2424	wmic.exe
Token: SeTakeOwnershipPrivilege	2424	wmic.exe
Token: SeLoadDriverPrivilege	2424	wmic.exe
Token: SeSystemProfilePrivilege	2424	wmic.exe
Token: SeSystemtimePrivilege	2424	wmic.exe
Token: SeProfSingleProcessPrivilege	2424	wmic.exe
Token: SeIncBasePriorityPrivilege	2424	wmic.exe
Token: SeCreatePagefilePrivilege	2424	wmic.exe
Token: SeBackupPrivilege	2424	wmic.exe
Token: SeRestorePrivilege	2424	wmic.exe
Token: SeShutdownPrivilege	2424	wmic.exe
Token: SeDebugPrivilege	2424	wmic.exe
Token: SeSystemEnvironmentPrivilege	2424	wmic.exe
Token: SeRemoteShutdownPrivilege	2424	wmic.exe
Token: SeUndockPrivilege	2424	wmic.exe
Token: SeManageVolumePrivilege	2424	wmic.exe
Token: 33	2424	wmic.exe
Token: 34	2424	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2084	2504	SolaraBootstrapper.V210.exe	30
PID 2504 wrote to memory of 2084	2504	SolaraBootstrapper.V210.exe	30
PID 2504 wrote to memory of 2084	2504	SolaraBootstrapper.V210.exe	30
PID 2504 wrote to memory of 2220	2504	SolaraBootstrapper.V210.exe	33
PID 2504 wrote to memory of 2220	2504	SolaraBootstrapper.V210.exe	33
PID 2504 wrote to memory of 2220	2504	SolaraBootstrapper.V210.exe	33
PID 2504 wrote to memory of 2320	2504	SolaraBootstrapper.V210.exe	35
PID 2504 wrote to memory of 2320	2504	SolaraBootstrapper.V210.exe	35
PID 2504 wrote to memory of 2320	2504	SolaraBootstrapper.V210.exe	35
PID 2504 wrote to memory of 2804	2504	SolaraBootstrapper.V210.exe	37
PID 2504 wrote to memory of 2804	2504	SolaraBootstrapper.V210.exe	37
PID 2504 wrote to memory of 2804	2504	SolaraBootstrapper.V210.exe	37
PID 2504 wrote to memory of 2888	2504	SolaraBootstrapper.V210.exe	39
PID 2504 wrote to memory of 2888	2504	SolaraBootstrapper.V210.exe	39
PID 2504 wrote to memory of 2888	2504	SolaraBootstrapper.V210.exe	39
PID 2504 wrote to memory of 2396	2504	SolaraBootstrapper.V210.exe	41
PID 2504 wrote to memory of 2396	2504	SolaraBootstrapper.V210.exe	41
PID 2504 wrote to memory of 2396	2504	SolaraBootstrapper.V210.exe	41
PID 2504 wrote to memory of 2424	2504	SolaraBootstrapper.V210.exe	44
PID 2504 wrote to memory of 2424	2504	SolaraBootstrapper.V210.exe	44
PID 2504 wrote to memory of 2424	2504	SolaraBootstrapper.V210.exe	44
PID 2504 wrote to memory of 276	2504	SolaraBootstrapper.V210.exe	46
PID 2504 wrote to memory of 276	2504	SolaraBootstrapper.V210.exe	46
PID 2504 wrote to memory of 276	2504	SolaraBootstrapper.V210.exe	46
PID 2504 wrote to memory of 1880	2504	SolaraBootstrapper.V210.exe	48
PID 2504 wrote to memory of 1880	2504	SolaraBootstrapper.V210.exe	48
PID 2504 wrote to memory of 1880	2504	SolaraBootstrapper.V210.exe	48
PID 2504 wrote to memory of 1344	2504	SolaraBootstrapper.V210.exe	50
PID 2504 wrote to memory of 1344	2504	SolaraBootstrapper.V210.exe	50
PID 2504 wrote to memory of 1344	2504	SolaraBootstrapper.V210.exe	50
PID 2504 wrote to memory of 2680	2504	SolaraBootstrapper.V210.exe	52
PID 2504 wrote to memory of 2680	2504	SolaraBootstrapper.V210.exe	52
PID 2504 wrote to memory of 2680	2504	SolaraBootstrapper.V210.exe	52
PID 2504 wrote to memory of 532	2504	SolaraBootstrapper.V210.exe	54
PID 2504 wrote to memory of 532	2504	SolaraBootstrapper.V210.exe	54
PID 2504 wrote to memory of 532	2504	SolaraBootstrapper.V210.exe	54
PID 532 wrote to memory of 2408	532	cmd.exe	56
PID 532 wrote to memory of 2408	532	cmd.exe	56
PID 532 wrote to memory of 2408	532	cmd.exe	56

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2220	attrib.exe

C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.V210.exe
"C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.V210.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2084
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.V210.exe"
  2⤵
  - Views/modifies file attributes
  PID:2220
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.V210.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2320
- 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:2804
- 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:2888
- 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:2396
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2424
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:276
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1880
- 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:1344
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2680
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.V210.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:532
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2408

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\AQ82JJ6YOBB3YIHPSQTH.temp

Filesize
7KB

MD5
1b72317267d1a25a52c6a5841c3f3ce9

SHA1
1a927e8c0b5f5ca62d193d5886956891a6eaeab7

SHA256
e3df9b268be35c6f427eca28ff8b855e9a76cf92079b170980d7565e17b1b48a

SHA512
d6322971f8a038aba9557bc754d1c5d13a58e3492f4116ac32a15fc89a2a249d6fa1a21d5feae88e4095f2e22d1f6eea9ed70418ee90a2bb7faa1ad28a757501

Download Submit
memory/1344-42-0x0000000002820000-0x0000000002828000-memory.dmp

Filesize
32KB

Download
memory/2320-7-0x000000001B580000-0x000000001B862000-memory.dmp

Filesize
2.9MB

Download
memory/2320-8-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download
memory/2504-0-0x000007FEF5EC3000-0x000007FEF5EC4000-memory.dmp

Filesize
4KB

Download
memory/2504-1-0x0000000001210000-0x0000000001250000-memory.dmp

Filesize
256KB

Download
memory/2504-2-0x000007FEF5EC0000-0x000007FEF68AC000-memory.dmp

Filesize
9.9MB

Download
memory/2504-46-0x000007FEF5EC0000-0x000007FEF68AC000-memory.dmp

Filesize
9.9MB

Download
memory/2804-14-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2804-15-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download