umbral | e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed

Analysis

max time kernel
148s
max time network
150s
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 01:28

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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/3820-1-0x000001AD9DD50000-0x000001AD9DD90000-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
2248	powershell.exe
2044	powershell.exe
3068	powershell.exe
2076	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
13	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
4416	cmd.exe
4032	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3136	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4032	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2248	powershell.exe
2248	powershell.exe
2044	powershell.exe
2044	powershell.exe
3068	powershell.exe
3068	powershell.exe
4012	powershell.exe
4012	powershell.exe
2076	powershell.exe
2076	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3820	saloader.exe
Token: SeDebugPrivilege	2248	powershell.exe
Token: SeDebugPrivilege	2044	powershell.exe
Token: SeDebugPrivilege	3068	powershell.exe
Token: SeDebugPrivilege	4012	powershell.exe
Token: SeIncreaseQuotaPrivilege	4832	wmic.exe
Token: SeSecurityPrivilege	4832	wmic.exe
Token: SeTakeOwnershipPrivilege	4832	wmic.exe
Token: SeLoadDriverPrivilege	4832	wmic.exe
Token: SeSystemProfilePrivilege	4832	wmic.exe
Token: SeSystemtimePrivilege	4832	wmic.exe
Token: SeProfSingleProcessPrivilege	4832	wmic.exe
Token: SeIncBasePriorityPrivilege	4832	wmic.exe
Token: SeCreatePagefilePrivilege	4832	wmic.exe
Token: SeBackupPrivilege	4832	wmic.exe
Token: SeRestorePrivilege	4832	wmic.exe
Token: SeShutdownPrivilege	4832	wmic.exe
Token: SeDebugPrivilege	4832	wmic.exe
Token: SeSystemEnvironmentPrivilege	4832	wmic.exe
Token: SeRemoteShutdownPrivilege	4832	wmic.exe
Token: SeUndockPrivilege	4832	wmic.exe
Token: SeManageVolumePrivilege	4832	wmic.exe
Token: 33	4832	wmic.exe
Token: 34	4832	wmic.exe
Token: 35	4832	wmic.exe
Token: 36	4832	wmic.exe
Token: SeIncreaseQuotaPrivilege	4832	wmic.exe
Token: SeSecurityPrivilege	4832	wmic.exe
Token: SeTakeOwnershipPrivilege	4832	wmic.exe
Token: SeLoadDriverPrivilege	4832	wmic.exe
Token: SeSystemProfilePrivilege	4832	wmic.exe
Token: SeSystemtimePrivilege	4832	wmic.exe
Token: SeProfSingleProcessPrivilege	4832	wmic.exe
Token: SeIncBasePriorityPrivilege	4832	wmic.exe
Token: SeCreatePagefilePrivilege	4832	wmic.exe
Token: SeBackupPrivilege	4832	wmic.exe
Token: SeRestorePrivilege	4832	wmic.exe
Token: SeShutdownPrivilege	4832	wmic.exe
Token: SeDebugPrivilege	4832	wmic.exe
Token: SeSystemEnvironmentPrivilege	4832	wmic.exe
Token: SeRemoteShutdownPrivilege	4832	wmic.exe
Token: SeUndockPrivilege	4832	wmic.exe
Token: SeManageVolumePrivilege	4832	wmic.exe
Token: 33	4832	wmic.exe
Token: 34	4832	wmic.exe
Token: 35	4832	wmic.exe
Token: 36	4832	wmic.exe
Token: SeIncreaseQuotaPrivilege	4016	wmic.exe
Token: SeSecurityPrivilege	4016	wmic.exe
Token: SeTakeOwnershipPrivilege	4016	wmic.exe
Token: SeLoadDriverPrivilege	4016	wmic.exe
Token: SeSystemProfilePrivilege	4016	wmic.exe
Token: SeSystemtimePrivilege	4016	wmic.exe
Token: SeProfSingleProcessPrivilege	4016	wmic.exe
Token: SeIncBasePriorityPrivilege	4016	wmic.exe
Token: SeCreatePagefilePrivilege	4016	wmic.exe
Token: SeBackupPrivilege	4016	wmic.exe
Token: SeRestorePrivilege	4016	wmic.exe
Token: SeShutdownPrivilege	4016	wmic.exe
Token: SeDebugPrivilege	4016	wmic.exe
Token: SeSystemEnvironmentPrivilege	4016	wmic.exe
Token: SeRemoteShutdownPrivilege	4016	wmic.exe
Token: SeUndockPrivilege	4016	wmic.exe
Token: SeManageVolumePrivilege	4016	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3820 wrote to memory of 4660	3820	saloader.exe	82
PID 3820 wrote to memory of 4660	3820	saloader.exe	82
PID 3820 wrote to memory of 2248	3820	saloader.exe	84
PID 3820 wrote to memory of 2248	3820	saloader.exe	84
PID 3820 wrote to memory of 2044	3820	saloader.exe	86
PID 3820 wrote to memory of 2044	3820	saloader.exe	86
PID 3820 wrote to memory of 3068	3820	saloader.exe	88
PID 3820 wrote to memory of 3068	3820	saloader.exe	88
PID 3820 wrote to memory of 4012	3820	saloader.exe	90
PID 3820 wrote to memory of 4012	3820	saloader.exe	90
PID 3820 wrote to memory of 4832	3820	saloader.exe	92
PID 3820 wrote to memory of 4832	3820	saloader.exe	92
PID 3820 wrote to memory of 4016	3820	saloader.exe	95
PID 3820 wrote to memory of 4016	3820	saloader.exe	95
PID 3820 wrote to memory of 1044	3820	saloader.exe	97
PID 3820 wrote to memory of 1044	3820	saloader.exe	97
PID 3820 wrote to memory of 2076	3820	saloader.exe	99
PID 3820 wrote to memory of 2076	3820	saloader.exe	99
PID 3820 wrote to memory of 3136	3820	saloader.exe	101
PID 3820 wrote to memory of 3136	3820	saloader.exe	101
PID 3820 wrote to memory of 4416	3820	saloader.exe	103
PID 3820 wrote to memory of 4416	3820	saloader.exe	103
PID 4416 wrote to memory of 4032	4416	cmd.exe	105
PID 4416 wrote to memory of 4032	4416	cmd.exe	105

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4660	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:3820
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\saloader.exe"
  2⤵
  - Views/modifies file attributes
  PID:4660
- 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:2248
- 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:2044
- 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:3068
- 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:4012
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4832
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4016
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1044
- 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:2076
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3136
- 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:4416
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4032

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
1a58f982c18490e622e00d4eb75ace5a

SHA1
60c30527b74659ecf09089a5a7c02a1df9a71b65

SHA256
4b7f800c0dea209162cc86627983993127eb20e3f8616646c41cb3ce15d9b39d

SHA512
ddab516a967783c5951717853aa5b3ef6dd5b442db50092888b2e7f3179fc68120fcde69a08d6ab280740eaadb6eadfc758c3118b52706f869e48ac1aebda480

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
92382908106bf04aac6575ae0e55073f

SHA1
b164dd606b60ada42fe843963f95e14e92d5d86a

SHA256
1332dc373efa610424b48ae9955247275f4f94cfeecec93a5121784ed8d6b3db

SHA512
d6ee3e3776f683b2a4eaf4fd92e2cd2b9412d85fb57556130d8cabf52e180fb17b5dcdfec9ccd0b3b80bed2816c0bd2d25de35580b859e7799b7cb61071edb3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_neogu0ua.1fm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2248-4-0x00007FFFF8850000-0x00007FFFF9311000-memory.dmp

Filesize
10.8MB

Download
memory/2248-17-0x00007FFFF8850000-0x00007FFFF9311000-memory.dmp

Filesize
10.8MB

Download
memory/2248-10-0x00000202E8CD0000-0x00000202E8CF2000-memory.dmp

Filesize
136KB

Download
memory/2248-3-0x00007FFFF8850000-0x00007FFFF9311000-memory.dmp

Filesize
10.8MB

Download
memory/3820-0-0x00007FFFF8853000-0x00007FFFF8855000-memory.dmp

Filesize
8KB

Download
memory/3820-33-0x000001ADB85D0000-0x000001ADB8620000-memory.dmp

Filesize
320KB

Download
memory/3820-32-0x000001ADB8500000-0x000001ADB8576000-memory.dmp

Filesize
472KB

Download
memory/3820-34-0x000001AD9FB00000-0x000001AD9FB1E000-memory.dmp

Filesize
120KB

Download
memory/3820-2-0x00007FFFF8850000-0x00007FFFF9311000-memory.dmp

Filesize
10.8MB

Download
memory/3820-71-0x000001AD9FB30000-0x000001AD9FB3A000-memory.dmp

Filesize
40KB

Download
memory/3820-72-0x000001AD9FB60000-0x000001AD9FB72000-memory.dmp

Filesize
72KB

Download
memory/3820-1-0x000001AD9DD50000-0x000001AD9DD90000-memory.dmp

Filesize
256KB

Download
memory/3820-92-0x00007FFFF8850000-0x00007FFFF9311000-memory.dmp

Filesize
10.8MB

Download