umbral | e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed

Analysis

max time kernel
90s
max time network
96s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-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
behavioral3/memory/924-1-0x0000024CC93B0000-0x0000024CC93F0000-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
2788	powershell.exe
2612	powershell.exe
3524	powershell.exe
5480	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
1	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
2016	cmd.exe
3892	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
896	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3892	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2788	powershell.exe
2788	powershell.exe
2612	powershell.exe
2612	powershell.exe
3524	powershell.exe
3524	powershell.exe
1300	powershell.exe
1300	powershell.exe
5480	powershell.exe
5480	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	924	saloader.exe
Token: SeDebugPrivilege	2788	powershell.exe
Token: SeDebugPrivilege	2612	powershell.exe
Token: SeDebugPrivilege	3524	powershell.exe
Token: SeDebugPrivilege	1300	powershell.exe
Token: SeIncreaseQuotaPrivilege	2784	wmic.exe
Token: SeSecurityPrivilege	2784	wmic.exe
Token: SeTakeOwnershipPrivilege	2784	wmic.exe
Token: SeLoadDriverPrivilege	2784	wmic.exe
Token: SeSystemProfilePrivilege	2784	wmic.exe
Token: SeSystemtimePrivilege	2784	wmic.exe
Token: SeProfSingleProcessPrivilege	2784	wmic.exe
Token: SeIncBasePriorityPrivilege	2784	wmic.exe
Token: SeCreatePagefilePrivilege	2784	wmic.exe
Token: SeBackupPrivilege	2784	wmic.exe
Token: SeRestorePrivilege	2784	wmic.exe
Token: SeShutdownPrivilege	2784	wmic.exe
Token: SeDebugPrivilege	2784	wmic.exe
Token: SeSystemEnvironmentPrivilege	2784	wmic.exe
Token: SeRemoteShutdownPrivilege	2784	wmic.exe
Token: SeUndockPrivilege	2784	wmic.exe
Token: SeManageVolumePrivilege	2784	wmic.exe
Token: 33	2784	wmic.exe
Token: 34	2784	wmic.exe
Token: 35	2784	wmic.exe
Token: 36	2784	wmic.exe
Token: SeIncreaseQuotaPrivilege	2784	wmic.exe
Token: SeSecurityPrivilege	2784	wmic.exe
Token: SeTakeOwnershipPrivilege	2784	wmic.exe
Token: SeLoadDriverPrivilege	2784	wmic.exe
Token: SeSystemProfilePrivilege	2784	wmic.exe
Token: SeSystemtimePrivilege	2784	wmic.exe
Token: SeProfSingleProcessPrivilege	2784	wmic.exe
Token: SeIncBasePriorityPrivilege	2784	wmic.exe
Token: SeCreatePagefilePrivilege	2784	wmic.exe
Token: SeBackupPrivilege	2784	wmic.exe
Token: SeRestorePrivilege	2784	wmic.exe
Token: SeShutdownPrivilege	2784	wmic.exe
Token: SeDebugPrivilege	2784	wmic.exe
Token: SeSystemEnvironmentPrivilege	2784	wmic.exe
Token: SeRemoteShutdownPrivilege	2784	wmic.exe
Token: SeUndockPrivilege	2784	wmic.exe
Token: SeManageVolumePrivilege	2784	wmic.exe
Token: 33	2784	wmic.exe
Token: 34	2784	wmic.exe
Token: 35	2784	wmic.exe
Token: 36	2784	wmic.exe
Token: SeIncreaseQuotaPrivilege	4928	wmic.exe
Token: SeSecurityPrivilege	4928	wmic.exe
Token: SeTakeOwnershipPrivilege	4928	wmic.exe
Token: SeLoadDriverPrivilege	4928	wmic.exe
Token: SeSystemProfilePrivilege	4928	wmic.exe
Token: SeSystemtimePrivilege	4928	wmic.exe
Token: SeProfSingleProcessPrivilege	4928	wmic.exe
Token: SeIncBasePriorityPrivilege	4928	wmic.exe
Token: SeCreatePagefilePrivilege	4928	wmic.exe
Token: SeBackupPrivilege	4928	wmic.exe
Token: SeRestorePrivilege	4928	wmic.exe
Token: SeShutdownPrivilege	4928	wmic.exe
Token: SeDebugPrivilege	4928	wmic.exe
Token: SeSystemEnvironmentPrivilege	4928	wmic.exe
Token: SeRemoteShutdownPrivilege	4928	wmic.exe
Token: SeUndockPrivilege	4928	wmic.exe
Token: SeManageVolumePrivilege	4928	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 924 wrote to memory of 864	924	saloader.exe	77
PID 924 wrote to memory of 864	924	saloader.exe	77
PID 924 wrote to memory of 2788	924	saloader.exe	79
PID 924 wrote to memory of 2788	924	saloader.exe	79
PID 924 wrote to memory of 2612	924	saloader.exe	81
PID 924 wrote to memory of 2612	924	saloader.exe	81
PID 924 wrote to memory of 3524	924	saloader.exe	83
PID 924 wrote to memory of 3524	924	saloader.exe	83
PID 924 wrote to memory of 1300	924	saloader.exe	85
PID 924 wrote to memory of 1300	924	saloader.exe	85
PID 924 wrote to memory of 2784	924	saloader.exe	87
PID 924 wrote to memory of 2784	924	saloader.exe	87
PID 924 wrote to memory of 4928	924	saloader.exe	90
PID 924 wrote to memory of 4928	924	saloader.exe	90
PID 924 wrote to memory of 1972	924	saloader.exe	92
PID 924 wrote to memory of 1972	924	saloader.exe	92
PID 924 wrote to memory of 5480	924	saloader.exe	94
PID 924 wrote to memory of 5480	924	saloader.exe	94
PID 924 wrote to memory of 896	924	saloader.exe	96
PID 924 wrote to memory of 896	924	saloader.exe	96
PID 924 wrote to memory of 2016	924	saloader.exe	98
PID 924 wrote to memory of 2016	924	saloader.exe	98
PID 2016 wrote to memory of 3892	2016	cmd.exe	100
PID 2016 wrote to memory of 3892	2016	cmd.exe	100

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
864	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:924
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\saloader.exe"
  2⤵
  - Views/modifies file attributes
  PID:864
- 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:2788
- 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:2612
- 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:3524
- 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:1300
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2784
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4928
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1972
- 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:5480
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:896
- 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:2016
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3892

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
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

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

Filesize
948B

MD5
75750301db717dee0ddce4939072ec41

SHA1
d4a763f4ced8ff5be9df24e0d6ec676a7a080527

SHA256
abfcadfc1dab687291dec5402f5472132f4d2460e85a498a37efa5ac9dc09888

SHA512
e02fbfc783aeb85a16422baf6df381b88415a89a29316695e48c1edb65745ec801759e276803207645d59b81e3ad38f584caad824772035ee6ce46c333f75ce3

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

Filesize
1KB

MD5
7332074ae2b01262736b6fbd9e100dac

SHA1
22f992165065107cc9417fa4117240d84414a13c

SHA256
baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

SHA512
4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

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

Filesize
1KB

MD5
ca4c593f5c14a0a8b380807648a1cee0

SHA1
bc0c84ca414724b88a4bcf61fe48a5190706e001

SHA256
b0b4e4d5cffcead8f0b4f792c089ac84f98c1730f43d65caa67e17c80fc9211e

SHA512
59173a64113ac84ac5c9c8c7223bbb68e6df4ea89f640da653f2a156210d89f72efbb8507d0c54e8776041cb7dac555ba4371f39d67ee340e1b823eff06673ef

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0pucaeqc.c2j.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/924-83-0x00007FF82A063000-0x00007FF82A065000-memory.dmp

Filesize
8KB

Download
memory/924-1-0x0000024CC93B0000-0x0000024CC93F0000-memory.dmp

Filesize
256KB

Download
memory/924-68-0x0000024CE3C80000-0x0000024CE3C92000-memory.dmp

Filesize
72KB

Download
memory/924-67-0x0000024CCB140000-0x0000024CCB14A000-memory.dmp

Filesize
40KB

Download
memory/924-88-0x00007FF82A060000-0x00007FF82AB22000-memory.dmp

Filesize
10.8MB

Download
memory/924-2-0x00007FF82A060000-0x00007FF82AB22000-memory.dmp

Filesize
10.8MB

Download
memory/924-0-0x00007FF82A063000-0x00007FF82A065000-memory.dmp

Filesize
8KB

Download
memory/924-33-0x0000024CE3930000-0x0000024CE39A6000-memory.dmp

Filesize
472KB

Download
memory/924-34-0x0000024CE39B0000-0x0000024CE3A00000-memory.dmp

Filesize
320KB

Download
memory/924-35-0x0000024CCB100000-0x0000024CCB11E000-memory.dmp

Filesize
120KB

Download
memory/2788-12-0x00007FF82A060000-0x00007FF82AB22000-memory.dmp

Filesize
10.8MB

Download
memory/2788-19-0x00007FF82A060000-0x00007FF82AB22000-memory.dmp

Filesize
10.8MB

Download
memory/2788-16-0x00007FF82A060000-0x00007FF82AB22000-memory.dmp

Filesize
10.8MB

Download
memory/2788-15-0x00007FF82A060000-0x00007FF82AB22000-memory.dmp

Filesize
10.8MB

Download
memory/2788-14-0x00007FF82A060000-0x00007FF82AB22000-memory.dmp

Filesize
10.8MB

Download
memory/2788-13-0x00007FF82A060000-0x00007FF82AB22000-memory.dmp

Filesize
10.8MB

Download
memory/2788-8-0x00000204D6930000-0x00000204D6952000-memory.dmp

Filesize
136KB

Download